Company lists · Data refreshed September 2026
Top 25 Information security services companies based in the United States
RevenueBase identified 7,243 company matches for information security services companies associated with the United States as of September 2026 and tracks 120,777 professional contacts across them, including 45,825 with verified work emails. New York is the largest hub.
This list covers company matches for information security services companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest information security services companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 14,289 contacts → | ||||
Exact match “Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 3,649 contacts → | ||||
Exact match “We are a crowdsourced security company that safeguards organizations' assets from sophisticated threat actors before they can strike-by uniting our customers with trusted hackers…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 2,222 contacts → | ||||
Exact match “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 1,949 contacts → | ||||
Exact match “Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 1,252 contacts → | ||||
Exact match “Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 1,232 contacts → | ||||
Exact match “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 1,217 contacts → | ||||
Exact match “On Dec.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 1,138 contacts → | ||||
Exact match “At Titan Security Group, we understand that each client is unique, with specific security needs shaped by the type of property and its location.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 1,062 contacts → | ||||
Exact match “Founded in 1982, St.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 947 contacts → | ||||
Exact match “Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 904 contacts → | ||||
Exact match “ZeroFox is the solution to discover, validate, and disrupt external cyber threats before they harm revenue or reputation.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 874 contacts → | ||||
Exact match “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 844 contacts → | ||||
Exact match “Today’s threatscape is relentless.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 785 contacts → | ||||
Exact match “ASK is now Convergence Networks!” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 696 contacts → | ||||
Exact match “Protect Your Endpoints, Identities, Logs, and Employees.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 660 contacts → | ||||
Exact match “With more than 30 years of experience partnering with global enterprises on complex business and IT initiatives, SDG is a trusted provider of advisory, transformation, and managed…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 641 contacts → | ||||
Exact match “At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 629 contacts → | ||||
Exact match “Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 628 contacts → | ||||
Exact match “VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 566 contacts → | ||||
Exact match “Comodo - Protecting Your Digital World At Comodo, we are dedicated to safeguarding your digital property with Comodo Website Security.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 523 contacts → | ||||
Exact match “UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program, finding what's vulnerable, stopping…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 511 contacts → | ||||
Exact match “Founded in 1982, Ranger American is a professional security organization with an extensive background in the security and investigation fields.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 503 contacts → | ||||
Exact match “Blue Mantis is a security-first, IT solutions and services provider with a 30+ year history of successfully helping clients achieve business modernization by applying…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 478 contacts → | ||||
Exact match “XTIUM, created through the business combination of ATSG and Evolve IP, delivers a modern security-first approach to the managed IT services experience.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 473 contacts → | ||||
Exact match “At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “information security services companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 7,243 information security services companies based in the United States
See the full list, filter by size, metro and specialty, and access 45,825 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Information security services companies based in the United States at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 7,243 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United States whose business descriptions match “information security services companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 45,825 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Information security services companies by metro
- Information security services companies in New York223
- Information security services companies in Houston129
- Information security services companies in Atlanta128
- Information security services companies in Washington120
- Information security services companies in Austin111
- Information security services companies in Dallas108
- Information security services companies in Chicago105
- Information security services companies in Miami102
- Information security services companies in Tampa83
- Information security services companies in San Francisco79
- Information security services companies in San Diego69
- Information security services companies in Los Angeles65
- Information security services companies in Arlington64
- Information security services companies in Charlotte59
- Information security services companies in Denver57
- Information security services companies in Boston56
- Information security services companies in Columbia54
- Information security services companies in Las Vegas52
- Information security services companies in Orlando49
- Information security services companies in Seattle48
- Information security services companies in Alexandria47
- Information security services companies in San Antonio47
- Information security services companies in Phoenix44
- Information security services companies in Baltimore40
- Information security services companies in Raleigh40
- Information security services companies in Mclean39
- Information security services companies in Reston39
- Information security services companies in Wilmington39
- Information security services companies in Fairfax36
- Information security services companies in Huntsville35
- Information security services companies in Ashburn34
- Information security services companies in Minneapolis33
- Information security services companies in Colorado Springs31
- Information security services companies in Irvine31
- Information security services companies in Portland31
- Information security services companies in Richmond31
- Information security services companies in Pittsburgh30
- Information security services companies in Plano30
- Information security services companies in Scottsdale30
- Information security services companies in San Jose29
- Information security services companies in Columbus27
- Information security services companies in Dover26
- Information security services companies in Fort Lauderdale26
- Information security services companies in Herndon26
- Information security services companies in Indianapolis26
- Information security services companies in Philadelphia26
- Information security services companies in Alpharetta25
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “information security services companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many information security services companies are there based in the United States?
RevenueBase identified 7,243 company matches for information security services companies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Fortinet tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most information security services companies?
New York leads with 223 company records, followed by Houston (129) and Atlanta (128).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 45,825 professional contacts with verified work emails tracked across these 7,243 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 7,243 information security services companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Information security services companies by geography
- Information security services companies based in Buenos Aires, Argentina
- Information security services companies based in Adelaide, Australia
- Information security services companies based in Brisbane, Australia
- Information security services companies based in Canberra, Australia
- Information security services companies based in Melbourne, Australia
- Information security services companies based in Perth, Australia
- Information security services companies based in Sydney, Australia
- Information security services companies based in Vienna, Austria
- Information security services companies based in Dhaka, Bangladesh
- Information security services companies based in Barueri, Brazil
- Information security services companies based in Belo Horizonte, Brazil
- Information security services companies based in Brasilia, Brazil
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
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- Lists A-Z
- New lists
- Information security services companies based in Buenos Aires, Argentina
- Information security services companies based in Adelaide, Australia
- Information security services companies based in Brisbane, Australia
- Information security services companies based in Canberra, Australia
- Information security services companies based in Melbourne, Australia
- Information security services companies based in Perth, Australia
Company intelligence · public preview
Top 25 information security services companies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 7,243 matching company records for information security services companies based in the United States, with 120,777 tracked contacts and 45,825 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 information security services companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Fortinetfortinet.comHQ: Sunnyvale, CA, United StatesReported employees: 10001+ | Sunnyvale, CA, United States | 10001+ | Exact match | 14,289 contacts → |
“Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Bugcrowdbugcrowd.comHQ: San Francisco, CA, United StatesReported employees: Not recorded | San Francisco, CA, United States | Not recorded | Exact match | 3,649 contacts → |
“We are a crowdsourced security company that safeguards organizations' assets from sophisticated threat actors before they can strike-by uniting our customers with trusted hackers…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  OPTIVoptiv.comHQ: Leawood, KS, United StatesReported employees: 1,001-5,000 | Leawood, KS, United States | 1,001-5,000 | Exact match | 2,222 contacts → |
“Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Paragon Systems INCparasys.comHQ: Herndon, VA, United StatesReported employees: 10001+ | Herndon, VA, United States | 10001+ | Exact match | 1,949 contacts → |
“Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Thales Cybersecurity Productscpl.thalesgroup.comHQ: Austin, TX, United StatesReported employees: 1,001-5,000 | Austin, TX, United States | 1,001-5,000 | Exact match | 1,252 contacts → |
“Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Guidepoint Securityguidepointsecurity.comHQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 1,232 contacts → |
“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Impervaimperva.comHQ: Austin, TX, United StatesReported employees: 10001+ | Austin, TX, United States | 10001+ | Exact match | 1,217 contacts → |
“On Dec.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Titan Security Grouptitan-security.comHQ: Chicago, IL, United StatesReported employees: 1,001-5,000 | Chicago, IL, United States | 1,001-5,000 | Exact match | 1,138 contacts → |
“At Titan Security Group, we understand that each client is unique, with specific security needs shaped by the type of property and its location.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  St. Moritz Security Services, INCsmssi.comHQ: Pittsburgh, PA, United StatesReported employees: 5,001-10,000 | Pittsburgh, PA, United States | 5,001-10,000 | Exact match | 1,062 contacts → |
“Founded in 1982, St.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Coalfirecoalfire.comHQ: Chicago, IL, United StatesReported employees: 1,001-5,000 | Chicago, IL, United States | 1,001-5,000 | Exact match | 947 contacts → |
“Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Zerofoxzerofox.comHQ: Baltimore, MD, United StatesReported employees: 501-1,000 | Baltimore, MD, United States | 501-1,000 | Exact match | 904 contacts → |
“ZeroFox is the solution to discover, validate, and disrupt external cyber threats before they harm revenue or reputation.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Trustwave, A Levelblue Companylevelblue.comHQ: Chicago, IL, United StatesReported employees: 501-1,000 | Chicago, IL, United States | 501-1,000 | Exact match | 874 contacts → |
“Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Cyderescyderes.comHQ: Kansas City, MO, United StatesReported employees: 1,001-5,000 | Kansas City, MO, United States | 1,001-5,000 | Exact match | 844 contacts → |
“Today’s threatscape is relentless.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Application Specialist Kompany ASKconvergencenetworks.comHQ: Lansing, MI, United StatesReported employees: Not recorded | Lansing, MI, United States | Not recorded | Exact match | 785 contacts → |
“ASK is now Convergence Networks!” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Huntresshuntress.comHQ: Columbia, MD, United StatesReported employees: 501-1,000 | Columbia, MD, United States | 501-1,000 | Exact match | 696 contacts → |
“Protect Your Endpoints, Identities, Logs, and Employees.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  SDG Corporationsdgc.comHQ: Norwalk, CT, United StatesReported employees: 201-500 | Norwalk, CT, United States | 201-500 | Exact match | 660 contacts → |
“With more than 30 years of experience partnering with global enterprises on complex business and IT initiatives, SDG is a trusted provider of advisory, transformation, and managed…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Network Intelligencenetworkintelligence.aiHQ: Plano, TX, United StatesReported employees: 501-1,000 | Plano, TX, United States | 501-1,000 | Exact match | 641 contacts → |
“At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Telos Corporationtelos.comHQ: Ashburn, VA, United StatesReported employees: 501-1,000 | Ashburn, VA, United States | 501-1,000 | Exact match | 629 contacts → |
“Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Vikingcloudvikingcloud.comHQ: Chicago, IL, United StatesReported employees: 1,001-5,000 | Chicago, IL, United States | 1,001-5,000 | Exact match | 628 contacts → |
“VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Comodocomodo.comHQ: Bloomfield, NJ, United StatesReported employees: 51-200 | Bloomfield, NJ, United States | 51-200 | Exact match | 566 contacts → |
“Comodo - Protecting Your Digital World At Comodo, we are dedicated to safeguarding your digital property with Comodo Website Security.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Ultraviolet Cyberuvcyber.comHQ: Mclean, VA, United StatesReported employees: 501-1,000 | Mclean, VA, United States | 501-1,000 | Exact match | 523 contacts → |
“UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program, finding what's vulnerable, stopping…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Ranger Americanrangeramerican.comHQ: San Juan, United StatesReported employees: 1,001-5,000 | San Juan, United States | 1,001-5,000 | Exact match | 511 contacts → |
“Founded in 1982, Ranger American is a professional security organization with an extensive background in the security and investigation fields.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Blue Mantisbluemantis.comHQ: Portsmouth, NH, United StatesReported employees: 201-500 | Portsmouth, NH, United States | 201-500 | Exact match | 503 contacts → |
“Blue Mantis is a security-first, IT solutions and services provider with a 30+ year history of successfully helping clients achieve business modernization by applying…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  XTIUMxtium.comHQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 478 contacts → |
“XTIUM, created through the business combination of ATSG and Evolve IP, delivers a modern security-first approach to the managed IT services experience.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Aujas Cybersecurityaujas.comHQ: Cupertino, CA, United StatesReported employees: 1,001-5,000 | Cupertino, CA, United States | 1,001-5,000 | Exact match | 473 contacts → |
“At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 7,243 company matches
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Information security services companies: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
7,226 records in the displayed employee bands.
17 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 7,243 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Information security services companies by metro
- Information security services companies in New York223
- Information security services companies in Houston129
- Information security services companies in Atlanta128
- Information security services companies in Washington120
- Information security services companies in Austin111
- Information security services companies in Dallas108
- Information security services companies in Chicago105
- Information security services companies in Miami102
- Information security services companies in Tampa83
- Information security services companies in San Francisco79
- Information security services companies in San Diego69
- Information security services companies in Los Angeles65
- Information security services companies in Arlington64
- Information security services companies in Charlotte59
- Information security services companies in Denver57
- Information security services companies in Boston56
- Information security services companies in Columbia54
- Information security services companies in Las Vegas52
- Information security services companies in Orlando49
- Information security services companies in Seattle48
- Information security services companies in Alexandria47
- Information security services companies in San Antonio47
- Information security services companies in Phoenix44
- Information security services companies in Baltimore40
- Information security services companies in Raleigh40
- Information security services companies in Mclean39
- Information security services companies in Reston39
- Information security services companies in Wilmington39
- Information security services companies in Fairfax36
- Information security services companies in Huntsville35
- Information security services companies in Ashburn34
- Information security services companies in Minneapolis33
- Information security services companies in Colorado Springs31
- Information security services companies in Irvine31
- Information security services companies in Portland31
- Information security services companies in Richmond31
- Information security services companies in Pittsburgh30
- Information security services companies in Plano30
- Information security services companies in Scottsdale30
- Information security services companies in San Jose29
- Information security services companies in Columbus27
- Information security services companies in Dover26
- Information security services companies in Fort Lauderdale26
- Information security services companies in Herndon26
- Information security services companies in Indianapolis26
- Information security services companies in Philadelphia26
- Information security services companies in Alpharetta25
Questions about this company list
What does Exact match mean for information security services companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many information security services companies did RevenueBase find based in the United States?
The saved snapshot records 7,243 matching company records, 120,777 tracked contacts and 45,825 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Information security services companies by geography
- Information security services companies based in Buenos Aires, Argentina
- Information security services companies based in Adelaide, Australia
- Information security services companies based in Brisbane, Australia
- Information security services companies based in Canberra, Australia
- Information security services companies based in Melbourne, Australia
- Information security services companies based in Perth, Australia
- Information security services companies based in Sydney, Australia
- Information security services companies based in Vienna, Austria
- Information security services companies based in Dhaka, Bangladesh
- Information security services companies based in Barueri, Brazil
- Information security services companies based in Belo Horizonte, Brazil
- Information security services companies based in Brasilia, Brazil
Cite this list
RevenueBase Data Team. Top 25 information security services companies based in the United States. Snapshot: September 21, 2026. https://revenuebase.ai/companies/information-security-services-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Information security services companies based in Buenos Aires, Argentina
- Information security services companies based in Adelaide, Australia
- Information security services companies based in Brisbane, Australia
- Information security services companies based in Canberra, Australia
- Information security services companies based in Melbourne, Australia
- Information security services companies based in Perth, Australia
Company intelligence · public preview
Top 25 information security services companies based in the United States
RevenueBase records 7,243 matching company records for information security services companies based in the United States, with 120,777 tracked contacts and 45,825 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 information security services companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Fortinetfortinet.com HQ: Sunnyvale, CA, United StatesReported employees: 10001+ | Sunnyvale, CA, United States | 10001+ | Exact match | 14,289 contacts → |
“Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Bugcrowdbugcrowd.com HQ: San Francisco, CA, United StatesReported employees: Not recorded | San Francisco, CA, United States | Not recorded | Exact match | 3,649 contacts → |
“We are a crowdsourced security company that safeguards organizations' assets from sophisticated threat actors before they can strike-by uniting our customers with trusted hackers…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | OPTIVoptiv.com HQ: Leawood, KS, United StatesReported employees: 1,001-5,000 | Leawood, KS, United States | 1,001-5,000 | Exact match | 2,222 contacts → |
“Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Paragon Systems INCparasys.com HQ: Herndon, VA, United StatesReported employees: 10001+ | Herndon, VA, United States | 10001+ | Exact match | 1,949 contacts → |
“Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Thales Cybersecurity Productscpl.thalesgroup.com HQ: Austin, TX, United StatesReported employees: 1,001-5,000 | Austin, TX, United States | 1,001-5,000 | Exact match | 1,252 contacts → |
“Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Guidepoint Securityguidepointsecurity.com HQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 1,232 contacts → |
“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Impervaimperva.com HQ: Austin, TX, United StatesReported employees: 10001+ | Austin, TX, United States | 10001+ | Exact match | 1,217 contacts → |
“On Dec.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Titan Security Grouptitan-security.com HQ: Chicago, IL, United StatesReported employees: 1,001-5,000 | Chicago, IL, United States | 1,001-5,000 | Exact match | 1,138 contacts → |
“At Titan Security Group, we understand that each client is unique, with specific security needs shaped by the type of property and its location.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | St. Moritz Security Services, INCsmssi.com HQ: Pittsburgh, PA, United StatesReported employees: 5,001-10,000 | Pittsburgh, PA, United States | 5,001-10,000 | Exact match | 1,062 contacts → |
“Founded in 1982, St.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Coalfirecoalfire.com HQ: Chicago, IL, United StatesReported employees: 1,001-5,000 | Chicago, IL, United States | 1,001-5,000 | Exact match | 947 contacts → |
“Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Zerofoxzerofox.com HQ: Baltimore, MD, United StatesReported employees: 501-1,000 | Baltimore, MD, United States | 501-1,000 | Exact match | 904 contacts → |
“ZeroFox is the solution to discover, validate, and disrupt external cyber threats before they harm revenue or reputation.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Trustwave, A Levelblue Companylevelblue.com HQ: Chicago, IL, United StatesReported employees: 501-1,000 | Chicago, IL, United States | 501-1,000 | Exact match | 874 contacts → |
“Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Cyderescyderes.com HQ: Kansas City, MO, United StatesReported employees: 1,001-5,000 | Kansas City, MO, United States | 1,001-5,000 | Exact match | 844 contacts → |
“Today’s threatscape is relentless.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Application Specialist Kompany ASKconvergencenetworks.com HQ: Lansing, MI, United StatesReported employees: Not recorded | Lansing, MI, United States | Not recorded | Exact match | 785 contacts → |
“ASK is now Convergence Networks!” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Huntresshuntress.com HQ: Columbia, MD, United StatesReported employees: 501-1,000 | Columbia, MD, United States | 501-1,000 | Exact match | 696 contacts → |
“Protect Your Endpoints, Identities, Logs, and Employees.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | SDG Corporationsdgc.com HQ: Norwalk, CT, United StatesReported employees: 201-500 | Norwalk, CT, United States | 201-500 | Exact match | 660 contacts → |
“With more than 30 years of experience partnering with global enterprises on complex business and IT initiatives, SDG is a trusted provider of advisory, transformation, and managed…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Network Intelligencenetworkintelligence.ai HQ: Plano, TX, United StatesReported employees: 501-1,000 | Plano, TX, United States | 501-1,000 | Exact match | 641 contacts → |
“At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Telos Corporationtelos.com HQ: Ashburn, VA, United StatesReported employees: 501-1,000 | Ashburn, VA, United States | 501-1,000 | Exact match | 629 contacts → |
“Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Vikingcloudvikingcloud.com HQ: Chicago, IL, United StatesReported employees: 1,001-5,000 | Chicago, IL, United States | 1,001-5,000 | Exact match | 628 contacts → |
“VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Comodocomodo.com HQ: Bloomfield, NJ, United StatesReported employees: 51-200 | Bloomfield, NJ, United States | 51-200 | Exact match | 566 contacts → |
“Comodo - Protecting Your Digital World At Comodo, we are dedicated to safeguarding your digital property with Comodo Website Security.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Ultraviolet Cyberuvcyber.com HQ: Mclean, VA, United StatesReported employees: 501-1,000 | Mclean, VA, United States | 501-1,000 | Exact match | 523 contacts → |
“UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program, finding what's vulnerable, stopping…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Ranger Americanrangeramerican.com HQ: San Juan, United StatesReported employees: 1,001-5,000 | San Juan, United States | 1,001-5,000 | Exact match | 511 contacts → |
“Founded in 1982, Ranger American is a professional security organization with an extensive background in the security and investigation fields.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Blue Mantisbluemantis.com HQ: Portsmouth, NH, United StatesReported employees: 201-500 | Portsmouth, NH, United States | 201-500 | Exact match | 503 contacts → |
“Blue Mantis is a security-first, IT solutions and services provider with a 30+ year history of successfully helping clients achieve business modernization by applying…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | XTIUMxtium.com HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 478 contacts → |
“XTIUM, created through the business combination of ATSG and Evolve IP, delivers a modern security-first approach to the managed IT services experience.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Aujas Cybersecurityaujas.com HQ: Cupertino, CA, United StatesReported employees: 1,001-5,000 | Cupertino, CA, United States | 1,001-5,000 | Exact match | 473 contacts → |
“At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 7,243 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
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Information security services companies: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
7,226 records in the displayed employee bands.
17 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 7,243 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Information security services companies by metro
- Information security services companies in New York223
- Information security services companies in Houston129
- Information security services companies in Atlanta128
- Information security services companies in Washington120
- Information security services companies in Austin111
- Information security services companies in Dallas108
- Information security services companies in Chicago105
- Information security services companies in Miami102
- Information security services companies in Tampa83
- Information security services companies in San Francisco79
- Information security services companies in San Diego69
- Information security services companies in Los Angeles65
- Information security services companies in Arlington64
- Information security services companies in Charlotte59
- Information security services companies in Denver57
- Information security services companies in Boston56
- Information security services companies in Columbia54
- Information security services companies in Las Vegas52
- Information security services companies in Orlando49
- Information security services companies in Seattle48
- Information security services companies in Alexandria47
- Information security services companies in San Antonio47
- Information security services companies in Phoenix44
- Information security services companies in Baltimore40
- Information security services companies in Raleigh40
- Information security services companies in Mclean39
- Information security services companies in Reston39
- Information security services companies in Wilmington39
- Information security services companies in Fairfax36
- Information security services companies in Huntsville35
- Information security services companies in Ashburn34
- Information security services companies in Minneapolis33
- Information security services companies in Colorado Springs31
- Information security services companies in Irvine31
- Information security services companies in Portland31
- Information security services companies in Richmond31
- Information security services companies in Pittsburgh30
- Information security services companies in Plano30
- Information security services companies in Scottsdale30
- Information security services companies in San Jose29
- Information security services companies in Columbus27
- Information security services companies in Dover26
- Information security services companies in Fort Lauderdale26
- Information security services companies in Herndon26
- Information security services companies in Indianapolis26
- Information security services companies in Philadelphia26
- Information security services companies in Alpharetta25
Questions about this company list
What does Exact match mean for information security services companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many information security services companies did RevenueBase find based in the United States?
The saved snapshot records 7,243 matching company records, 120,777 tracked contacts and 45,825 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Information security services companies by geography
- Information security services companies based in Buenos Aires, Argentina
- Information security services companies based in Adelaide, Australia
- Information security services companies based in Brisbane, Australia
- Information security services companies based in Canberra, Australia
- Information security services companies based in Melbourne, Australia
- Information security services companies based in Perth, Australia
- Information security services companies based in Sydney, Australia
- Information security services companies based in Vienna, Austria
- Information security services companies based in Dhaka, Bangladesh
- Information security services companies based in Barueri, Brazil
- Information security services companies based in Belo Horizonte, Brazil
- Information security services companies based in Brasilia, Brazil
Cite this list
RevenueBase Data Team. Top 25 information security services companies based in the United States. Snapshot: September 21, 2026. https://revenuebase.ai/companies/information-security-services-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Information security services companies based in Buenos Aires, Argentina
- Information security services companies based in Adelaide, Australia
- Information security services companies based in Brisbane, Australia
- Information security services companies based in Canberra, Australia
- Information security services companies based in Melbourne, Australia
- Information security services companies based in Perth, Australia