Company lists · Data refreshed September 2026
Top 25 Cybersecurity firms based in the United States
RevenueBase identified 8,911 company matches for cybersecurity firms associated with the United States as of September 2026 and tracks 219,411 professional contacts across them, including 90,899 with verified work emails and 71,213 with mobile numbers. New York is the largest hub.
This list covers company matches for cybersecurity firms 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 1, 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 cybersecurity firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 11,179 contacts → | ||||
Exact match “Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 2 | 4,381 contacts → | ||||
Exact match “Rubrik (NYSE: RBRK), the Security and AI company, operates at the intersection of data protection, cyber resilience and enterprise AI acceleration.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 3 | 4,050 contacts → | ||||
Exact match “Commvault (NASDAQ: CVLT) is a leader in unified resilience at enterprise scale.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 4 | 3,490 contacts → | ||||
Exact match “Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 5 | 3,046 contacts → | ||||
Exact match “SentinelOne is the world's leading AI-powered cybersecurity platform.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 6 | 3,042 contacts → | ||||
Exact match “Qualys, Inc.(NASDAQ: QLYS) is a leading provider of disruptive cloud-based security, compliance and IT solutions with more than subscription customers worldwide, including a…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 7 | 2,808 contacts → | ||||
Exact match “Infoblox unites networking and security to deliver unmatched performance and protection.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 8 | 2,741 contacts → | ||||
Exact match “Varonis unifies AI-native data security, AI security and governance, and behavior-based threat detection.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 9 | 2,378 contacts → | ||||
Exact match “KnowBe4 empowers the modern workforce to make smarter security decisions every day.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 10 | 2,206 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 1, 2026 · View company records in RevenueBase | |||||
| 11 | 2,158 contacts → | ||||
Exact match “Tenable is the exposure management company, exposing and closing the cybersecurity gaps that erode business value, reputation and trust.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 12 | 2,141 contacts → | ||||
Exact match “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 13 | 2,108 contacts → | ||||
Exact match “Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 14 | 1,946 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 1, 2026 · View company records in RevenueBase | |||||
| 15 | 1,650 contacts → | ||||
Exact match “BeyondTrust is the global cybersecurity leader protecting Paths to Privilege™.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 16 | 1,640 contacts → | ||||
Exact match “Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 17 | 1,620 contacts → | ||||
Exact match “Forcepoint simplifies security for global businesses and governments.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 18 | 1,269 contacts → | ||||
Exact match “EC-Council is the creator of the globally renowned Certified Ethical Hacker (CEH) program.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 19 | 1,252 contacts → | ||||
Exact match “ReliaQuest exists to Make Security Possible.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 20 | 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 1, 2026 · View company records in RevenueBase | |||||
| 21 | 1,234 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 1, 2026 · View company records in RevenueBase | |||||
| 22 | 1,211 contacts → | ||||
Exact match “On Dec.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 23 | 1,165 contacts → | ||||
Exact match “As AI-driven vulnerability and exploitation accelerate attack velocity to machine speed, Forescout is a foundational cyber defense layer that allows organizations to segment and…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 24 | 1,054 contacts → | ||||
Exact match “WatchGuard® Technologies, Inc.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 25 | 858 contacts → | ||||
Exact match “At Tyto Athene, we help turn Data to Dominance.” Recorded in the RevenueBase company graph · Sep 1, 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 “cybersecurity firms”. 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 8,911 cybersecurity firms based in the United States
See the full list, filter by size, metro and specialty, and access 90,899 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Cybersecurity firms based in the United States at a glance
As of Sep 1, 2026Companies by employee count
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 “cybersecurity firms” 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 90,899 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 1, 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.
Cybersecurity firms by metro
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 “cybersecurity firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many cybersecurity firms are there based in the United States?
RevenueBase identified 8,911 company matches for cybersecurity firms 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?
Symantec tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most cybersecurity firms?
New York leads with 326 company records, followed by Washington (184) and Austin (181).
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 90,899 professional contacts with verified work emails tracked across these 8,911 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 1, 2026.
Ready to reach these companies? Verified emails and direct dials for all 8,911 cybersecurity firms based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Cybersecurity firms by geography
- Cybersecurity firms based in the United Kingdom
- Cybersecurity firms based in France
- Cybersecurity firms based in Canada
- Cybersecurity firms based in Brazil
- Cybersecurity firms based in Australia
- Cybersecurity firms based in Germany
- Cybersecurity firms based in Spain
- Cybersecurity firms based in the Netherlands
- Cybersecurity firms based in Italy
- Cybersecurity firms based in Israel
- Cybersecurity firms based in Mexico
- Cybersecurity firms based in South Africa
Browse the directory
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
Company intelligence · public preview
Top 25 cybersecurity firms 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 8,911 matching company records for cybersecurity firms based in the United States, with 219,411 tracked contacts and 90,899 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 1, 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 cybersecurity firms 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 |  Symantecbroadcom.comHQ: HQ not recorded; location: San Jose, CA, United StatesReported employees: 10001+ | HQ not recorded; location: San Jose, CA, United States | 10001+ | Exact match | 11,179 contacts → |
“Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Rubrikrbrk.coHQ: HQ not recorded; location: Reston, VA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Reston, VA, United States | 1,001-5,000 | Exact match | 4,381 contacts → |
“Rubrik (NYSE: RBRK), the Security and AI company, operates at the intersection of data protection, cyber resilience and enterprise AI acceleration.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Commvaultcommvault.comHQ: HQ not recorded; location: Tinton Falls, NJ, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Tinton Falls, NJ, United States | 1,001-5,000 | Exact match | 4,050 contacts → |
“Commvault (NASDAQ: CVLT) is a leader in unified resilience at enterprise scale.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Trellixtrellix.comHQ: HQ not recorded; location: Plano, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Plano, TX, United States | 1,001-5,000 | Exact match | 3,490 contacts → |
“Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Sentinelonesentinelone.comHQ: HQ not recorded; location: Mountain View, CA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Mountain View, CA, United States | 1,001-5,000 | Exact match | 3,046 contacts → |
“SentinelOne is the world's leading AI-powered cybersecurity platform.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Qualysqualys.comHQ: HQ not recorded; location: Foster City, CA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Foster City, CA, United States | 1,001-5,000 | Exact match | 3,042 contacts → |
“Qualys, Inc.(NASDAQ: QLYS) is a leading provider of disruptive cloud-based security, compliance and IT solutions with more than subscription customers worldwide, including a…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Infobloxinfoblox.comHQ: HQ not recorded; location: Tacoma, WA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Tacoma, WA, United States | 1,001-5,000 | Exact match | 2,808 contacts → |
“Infoblox unites networking and security to deliver unmatched performance and protection.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Varonisvaronis.comHQ: HQ not recorded; location: Scottsdale, AZ, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Scottsdale, AZ, United States | 1,001-5,000 | Exact match | 2,741 contacts → |
“Varonis unifies AI-native data security, AI security and governance, and behavior-based threat detection.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Knowbe4knowbe4.comHQ: HQ not recorded; location: Clearwater, FL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Clearwater, FL, United States | 1,001-5,000 | Exact match | 2,378 contacts → |
“KnowBe4 empowers the modern workforce to make smarter security decisions every day.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  OPTIVoptiv.comHQ: HQ not recorded; location: Chantilly, VA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Chantilly, VA, United States | 1,001-5,000 | Exact match | 2,206 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 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Tenabletenable.comHQ: HQ not recorded; location: Columbia, MD, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Columbia, MD, United States | 1,001-5,000 | Exact match | 2,158 contacts → |
“Tenable is the exposure management company, exposing and closing the cybersecurity gaps that erode business value, reputation and trust.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Bitdefenderbitdefender.comHQ: HQ not recorded; location: Fort Lauderdale, FL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Fort Lauderdale, FL, United States | 1,001-5,000 | Exact match | 2,141 contacts → |
“Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Barracudabarracuda.comHQ: HQ not recorded; location: Alpharetta, GA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Alpharetta, GA, United States | 1,001-5,000 | Exact match | 2,108 contacts → |
“Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Paragon Systems INCparasys.comHQ: HQ not recorded; location: Herndon, VA, United StatesReported employees: 10001+ | HQ not recorded; location: Herndon, VA, United States | 10001+ | Exact match | 1,946 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 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Beyondtrustbeyondtrust.comHQ: HQ not recorded; location: Johns Creek, GA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Johns Creek, GA, United States | 1,001-5,000 | Exact match | 1,650 contacts → |
“BeyondTrust is the global cybersecurity leader protecting Paths to Privilege™.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Fortrafortra.comHQ: HQ not recorded; location: Eden Prairie, MN, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Eden Prairie, MN, United States | 1,001-5,000 | Exact match | 1,640 contacts → |
“Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Forcepointforcepoint.comHQ: HQ not recorded; location: Austin, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Austin, TX, United States | 1,001-5,000 | Exact match | 1,620 contacts → |
“Forcepoint simplifies security for global businesses and governments.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Ec-Councileccouncil.orgHQ: HQ not recorded; location: Albuquerque, NM, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Albuquerque, NM, United States | 1,001-5,000 | Exact match | 1,269 contacts → |
“EC-Council is the creator of the globally renowned Certified Ethical Hacker (CEH) program.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Reliaquestreliaquest.comHQ: HQ not recorded; location: Sandy, UT, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Sandy, UT, United States | 1,001-5,000 | Exact match | 1,252 contacts → |
“ReliaQuest exists to Make Security Possible.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Thales Cybersecurity Productscpl.thalesgroup.comHQ: HQ not recorded; location: Austin, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: 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 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Guidepoint Securityguidepointsecurity.comHQ: HQ not recorded; location: Tampa, FL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Tampa, FL, United States | 1,001-5,000 | Exact match | 1,234 contacts → |
“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Impervaimperva.comHQ: HQ not recorded; location: Austin, TX, United StatesReported employees: 10001+ | HQ not recorded; location: Austin, TX, United States | 10001+ | Exact match | 1,211 contacts → |
“On Dec.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Forescout Technologies INCforescout.comHQ: HQ not recorded; location: San Jose, CA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: San Jose, CA, United States | 1,001-5,000 | Exact match | 1,165 contacts → |
“As AI-driven vulnerability and exploitation accelerate attack velocity to machine speed, Forescout is a foundational cyber defense layer that allows organizations to segment and…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Watchguard Technologieswatchguard.comHQ: HQ not recorded; location: Seattle, WA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Seattle, WA, United States | 1,001-5,000 | Exact match | 1,054 contacts → |
“WatchGuard® Technologies, Inc.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Tyto Athene, LLCgotyto.comHQ: HQ not recorded; location: Amherst, VA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Amherst, VA, United States | 1,001-5,000 | Exact match | 858 contacts → |
“At Tyto Athene, we help turn Data to Dominance.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 8,911 company matches
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Cybersecurity firms: dataset insights
September 1, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
8,875 records in the displayed employee bands.
36 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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 1, 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 ↗
Cybersecurity firms by metro
Questions about this company list
What does Exact match mean for cybersecurity firms?
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 cybersecurity firms did RevenueBase find based in the United States?
The saved snapshot records 8,911 matching company records, 219,411 tracked contacts and 90,899 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 1, 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
Cybersecurity firms by geography
- Cybersecurity firms based in the United Kingdom
- Cybersecurity firms based in France
- Cybersecurity firms based in Canada
- Cybersecurity firms based in Brazil
- Cybersecurity firms based in Australia
- Cybersecurity firms based in Germany
- Cybersecurity firms based in Spain
- Cybersecurity firms based in the Netherlands
- Cybersecurity firms based in Italy
- Cybersecurity firms based in Israel
- Cybersecurity firms based in Mexico
- Cybersecurity firms based in South Africa
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 cybersecurity firms based in the United States. Snapshot: September 1, 2026. https://revenuebase.ai/companies/cybersecurity-firms/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
Company intelligence · public preview
Top 25 cybersecurity firms based in the United States
RevenueBase records 8,911 matching company records for cybersecurity firms based in the United States, with 219,411 tracked contacts and 90,899 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 1, 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 cybersecurity firms 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 | Symantecbroadcom.com HQ: HQ not recorded; location: San Jose, CA, United StatesReported employees: 10001+ | HQ not recorded; location: San Jose, CA, United States | 10001+ | Exact match | 11,179 contacts → |
“Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Rubrikrbrk.co HQ: HQ not recorded; location: Reston, VA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Reston, VA, United States | 1,001-5,000 | Exact match | 4,381 contacts → |
“Rubrik (NYSE: RBRK), the Security and AI company, operates at the intersection of data protection, cyber resilience and enterprise AI acceleration.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Commvaultcommvault.com HQ: HQ not recorded; location: Tinton Falls, NJ, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Tinton Falls, NJ, United States | 1,001-5,000 | Exact match | 4,050 contacts → |
“Commvault (NASDAQ: CVLT) is a leader in unified resilience at enterprise scale.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Trellixtrellix.com HQ: HQ not recorded; location: Plano, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Plano, TX, United States | 1,001-5,000 | Exact match | 3,490 contacts → |
“Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Sentinelonesentinelone.com HQ: HQ not recorded; location: Mountain View, CA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Mountain View, CA, United States | 1,001-5,000 | Exact match | 3,046 contacts → |
“SentinelOne is the world's leading AI-powered cybersecurity platform.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Qualysqualys.com HQ: HQ not recorded; location: Foster City, CA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Foster City, CA, United States | 1,001-5,000 | Exact match | 3,042 contacts → |
“Qualys, Inc.(NASDAQ: QLYS) is a leading provider of disruptive cloud-based security, compliance and IT solutions with more than subscription customers worldwide, including a…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Infobloxinfoblox.com HQ: HQ not recorded; location: Tacoma, WA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Tacoma, WA, United States | 1,001-5,000 | Exact match | 2,808 contacts → |
“Infoblox unites networking and security to deliver unmatched performance and protection.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Varonisvaronis.com HQ: HQ not recorded; location: Scottsdale, AZ, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Scottsdale, AZ, United States | 1,001-5,000 | Exact match | 2,741 contacts → |
“Varonis unifies AI-native data security, AI security and governance, and behavior-based threat detection.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Knowbe4knowbe4.com HQ: HQ not recorded; location: Clearwater, FL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Clearwater, FL, United States | 1,001-5,000 | Exact match | 2,378 contacts → |
“KnowBe4 empowers the modern workforce to make smarter security decisions every day.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | OPTIVoptiv.com HQ: HQ not recorded; location: Chantilly, VA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Chantilly, VA, United States | 1,001-5,000 | Exact match | 2,206 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 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Tenabletenable.com HQ: HQ not recorded; location: Columbia, MD, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Columbia, MD, United States | 1,001-5,000 | Exact match | 2,158 contacts → |
“Tenable is the exposure management company, exposing and closing the cybersecurity gaps that erode business value, reputation and trust.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Bitdefenderbitdefender.com HQ: HQ not recorded; location: Fort Lauderdale, FL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Fort Lauderdale, FL, United States | 1,001-5,000 | Exact match | 2,141 contacts → |
“Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Barracudabarracuda.com HQ: HQ not recorded; location: Alpharetta, GA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Alpharetta, GA, United States | 1,001-5,000 | Exact match | 2,108 contacts → |
“Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Paragon Systems INCparasys.com HQ: HQ not recorded; location: Herndon, VA, United StatesReported employees: 10001+ | HQ not recorded; location: Herndon, VA, United States | 10001+ | Exact match | 1,946 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 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Beyondtrustbeyondtrust.com HQ: HQ not recorded; location: Johns Creek, GA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Johns Creek, GA, United States | 1,001-5,000 | Exact match | 1,650 contacts → |
“BeyondTrust is the global cybersecurity leader protecting Paths to Privilege™.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Fortrafortra.com HQ: HQ not recorded; location: Eden Prairie, MN, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Eden Prairie, MN, United States | 1,001-5,000 | Exact match | 1,640 contacts → |
“Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Forcepointforcepoint.com HQ: HQ not recorded; location: Austin, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Austin, TX, United States | 1,001-5,000 | Exact match | 1,620 contacts → |
“Forcepoint simplifies security for global businesses and governments.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Ec-Councileccouncil.org HQ: HQ not recorded; location: Albuquerque, NM, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Albuquerque, NM, United States | 1,001-5,000 | Exact match | 1,269 contacts → |
“EC-Council is the creator of the globally renowned Certified Ethical Hacker (CEH) program.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Reliaquestreliaquest.com HQ: HQ not recorded; location: Sandy, UT, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Sandy, UT, United States | 1,001-5,000 | Exact match | 1,252 contacts → |
“ReliaQuest exists to Make Security Possible.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Thales Cybersecurity Productscpl.thalesgroup.com HQ: HQ not recorded; location: Austin, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: 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 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Guidepoint Securityguidepointsecurity.com HQ: HQ not recorded; location: Tampa, FL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Tampa, FL, United States | 1,001-5,000 | Exact match | 1,234 contacts → |
“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Impervaimperva.com HQ: HQ not recorded; location: Austin, TX, United StatesReported employees: 10001+ | HQ not recorded; location: Austin, TX, United States | 10001+ | Exact match | 1,211 contacts → |
“On Dec.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Forescout Technologies INCforescout.com HQ: HQ not recorded; location: San Jose, CA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: San Jose, CA, United States | 1,001-5,000 | Exact match | 1,165 contacts → |
“As AI-driven vulnerability and exploitation accelerate attack velocity to machine speed, Forescout is a foundational cyber defense layer that allows organizations to segment and…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Watchguard Technologieswatchguard.com HQ: HQ not recorded; location: Seattle, WA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Seattle, WA, United States | 1,001-5,000 | Exact match | 1,054 contacts → |
“WatchGuard® Technologies, Inc.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Tyto Athene, LLCgotyto.com HQ: HQ not recorded; location: Amherst, VA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Amherst, VA, United States | 1,001-5,000 | Exact match | 858 contacts → |
“At Tyto Athene, we help turn Data to Dominance.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 8,911 company matches
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Cybersecurity firms: dataset insights
September 1, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
8,875 records in the displayed employee bands.
36 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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 1, 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 ↗
Cybersecurity firms by metro
Questions about this company list
What does Exact match mean for cybersecurity firms?
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 cybersecurity firms did RevenueBase find based in the United States?
The saved snapshot records 8,911 matching company records, 219,411 tracked contacts and 90,899 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 1, 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
Cybersecurity firms by geography
- Cybersecurity firms based in the United Kingdom
- Cybersecurity firms based in France
- Cybersecurity firms based in Canada
- Cybersecurity firms based in Brazil
- Cybersecurity firms based in Australia
- Cybersecurity firms based in Germany
- Cybersecurity firms based in Spain
- Cybersecurity firms based in the Netherlands
- Cybersecurity firms based in Italy
- Cybersecurity firms based in Israel
- Cybersecurity firms based in Mexico
- Cybersecurity firms based in South Africa
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 cybersecurity firms based in the United States. Snapshot: September 1, 2026. https://revenuebase.ai/companies/cybersecurity-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗