Company lists · Data refreshed September 2026
Top 25 Website security companies based in the United States
RevenueBase identified 1,079 company matches for website security companies associated with the United States as of September 2026 and tracks 13,054 professional contacts across them, including 4,843 with verified work emails. New York is the largest hub.
This list covers company matches for website security 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 14, 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 website security companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 14, 2026 · View company records in RevenueBase | |||||
| 2 | 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 14, 2026 · View company records in RevenueBase | |||||
| 3 | 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 14, 2026 · View company records in RevenueBase | |||||
| 4 | 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 14, 2026 · View company records in RevenueBase | |||||
| 5 | 326 contacts → | ||||
Exact match “Invicti is transforming the way web applications are secured.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 6 | 220 contacts → | ||||
Exact match “For over 20 years, leading companies in Telecom, Cybersecurity, Healthcare, Banking, New Media, and more have come to rely on Loginsoft as a trusted resource for technology talent.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 7 | 204 contacts → | ||||
Exact match “MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 8 | 199 contacts → | ||||
Exact match “Webroot, an OpenText company, was the first to harness the cloud and artificial intelligence to stop zero-day threats in real time.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 9 | 196 contacts → | ||||
Exact match “SafeAeon leads the industry as a top-tier Cybersecurity-as-a-Service provider, delivering 24x7 premium Managed Security Services with AI-powered and human-driven 24x7 SOC…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 10 | 182 contacts → | ||||
Exact match “With 30 years of experience in cyber defense, DeepSeas is trusted by nearly clients around the world, including Fortune 100 enterprises and mid-market organizations, municipality…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 11 | 178 contacts → | ||||
Exact match “Global Cyber Certainty Champions, in an uncertain digital world.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 12 | 176 contacts → | ||||
Exact match “Cyber Advisors is a nationwide leader in cyber security, providing a comprehensive range of Offensive, Defensive, and Risk Management services.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 13 | 167 contacts → | ||||
Exact match “DefendEdge is a leading US-based cybersecurity firm specializing in protecting clients' firewalls, endpoints, and applications against cyber threats and vulnerabilities.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 14 | 159 contacts → | ||||
Exact match “Hitachi Systems Trusted Cyber Management Inc.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 15 | 151 contacts → | ||||
Exact match “nuHarbor is a U.S-based cybersecurity firm trusted by public sector and critical infrastructure organizations nationwide.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 16 | 131 contacts → | ||||
Exact match “HelpSystems has long been known for helping organizations become more secure and autonomous.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 17 | 124 contacts → | ||||
Exact match “Authentic8 helps intelligence and security teams investigate the digital world without exposing who they are, where they are, or what they are working on.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 18 | 115 contacts → | ||||
Exact match “TraceSecurity is a leading cybersecurity services company, providing a broad range of services and solutions in IT security compliance, risk and vulnerability management, and…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 19 | 111 contacts → | ||||
Exact match “DirectDefense provides enterprise risk assessments, penetration testing, ICS/SCADA security services, and 24/7 managed security services for companies of all sizes.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 20 | 107 contacts → | ||||
Exact match “IOActive is a trusted partner for Global enterprises, providing research-fueled security services across all industries.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 21 | 101 contacts → | ||||
Exact match “As the world becomes more connected, our lives and businesses are more vulnerable.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 22 | 87 contacts → | ||||
Exact match “Join the Global Leader in Website Security – SiteLock!” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 23 | 81 contacts → | ||||
Exact match “At Vertek, we deliver advanced cybersecurity solutions that empower businesses to protect their digital assets and achieve peace of mind.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 24 | 80 contacts → | ||||
Exact match “Our Cybersecurity Specialists are highly educated and certified professionals who have utilized their extensive IT security experience to support both Fortune 500 businesses and…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 25 | 79 contacts → | ||||
Exact match “Technology should push your business forward, not create friction, risk, or uncertainty.” Recorded in the RevenueBase company graph · Sep 14, 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 “website security 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 1,079 website security companies based in the United States
See the full list, filter by size, metro and specialty, and access 4,843 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Website security companies based in the United States at a glance
As of Sep 14, 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 1,079 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 “website security 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 4,843 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 14, 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.
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 “website security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many website security companies are there based in the United States?
RevenueBase identified 1,079 company matches for website security 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?
Thales Cybersecurity Products tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most website security companies?
New York leads with 29 company records, followed by Austin (23) and Miami (23).
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 4,843 professional contacts with verified work emails tracked across these 1,079 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 14, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,079 website security companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Website security companies by geography
- Website security companies based in Chennai, India
- Website security companies based in Hyderabad, India
- Website security companies based in Mumbai, India
- Website security companies based in Australia
- Website security companies based in Belgium
- Website security companies based in Brazil
- Website security companies based in Canada
- Website security companies based in Chile
- Website security companies based in Colombia
- Website security companies based in France
- Website security companies based in Germany
- Website security companies based in India
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
- Lists by location
- Lists A-Z
- New lists
- Website security companies based in Chennai, India
- Website security companies based in Hyderabad, India
- Website security companies based in Mumbai, India
- Website security companies based in Australia
- Website security companies based in Belgium
- Website security companies based in Brazil
Company intelligence · public preview
Top 25 website security 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 1,079 matching company records for website security companies based in the United States, with 13,054 tracked contacts and 4,843 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 14, 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 website security 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 |  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 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  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 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  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 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Invictiinvicti.comHQ: Austin, TX, United StatesReported employees: 201-500 | Austin, TX, United States | 201-500 | Exact match | 326 contacts → |
“Invicti is transforming the way web applications are secured.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Loginsoftloginsoft.comHQ: Chantilly, VA, United StatesReported employees: 201-500 | Chantilly, VA, United States | 201-500 | Exact match | 220 contacts → |
“For over 20 years, leading companies in Telecom, Cybersecurity, Healthcare, Banking, New Media, and more have come to rely on Loginsoft as a trusted resource for technology talent.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Mindpoint Group, A Quantum SKY Companymindpointgroup.comHQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 204 contacts → |
“MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Webrootwebroot.comHQ: Broomfield, CO, United StatesReported employees: 501-1,000 | Broomfield, CO, United States | 501-1,000 | Exact match | 199 contacts → |
“Webroot, an OpenText company, was the first to harness the cloud and artificial intelligence to stop zero-day threats in real time.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Safeaeon INCsafeaeon.comHQ: Pleasanton, CA, United StatesReported employees: 51-200 | Pleasanton, CA, United States | 51-200 | Exact match | 196 contacts → |
“SafeAeon leads the industry as a top-tier Cybersecurity-as-a-Service provider, delivering 24x7 premium Managed Security Services with AI-powered and human-driven 24x7 SOC…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Deepseasdeepseas.comHQ: Globally Distributed, United StatesReported employees: 201-500 | Globally Distributed, United States | 201-500 | Exact match | 182 contacts → |
“With 30 years of experience in cyber defense, DeepSeas is trusted by nearly clients around the world, including Fortune 100 enterprises and mid-market organizations, municipality…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Cypfercypfer.comHQ: Miami, FL, United StatesReported employees: 51-200 | Miami, FL, United States | 51-200 | Exact match | 178 contacts → |
“Global Cyber Certainty Champions, in an uncertain digital world.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Cyber Advisorscyberadvisors.comHQ: Maple Grove, MN, United StatesReported employees: 201-500 | Maple Grove, MN, United States | 201-500 | Exact match | 176 contacts → |
“Cyber Advisors is a nationwide leader in cyber security, providing a comprehensive range of Offensive, Defensive, and Risk Management services.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Defendedgedefendedge.comHQ: Elmhurst, IL, United StatesReported employees: 51-200 | Elmhurst, IL, United States | 51-200 | Exact match | 167 contacts → |
“DefendEdge is a leading US-based cybersecurity firm specializing in protecting clients' firewalls, endpoints, and applications against cyber threats and vulnerabilities.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Hitachi Cyberhitachicyber.comHQ: Santa Clara, CA, United StatesReported employees: 501-1,000 | Santa Clara, CA, United States | 501-1,000 | Exact match | 159 contacts → |
“Hitachi Systems Trusted Cyber Management Inc.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Nuharbornuharbor.comHQ: Colchester, VT, United StatesReported employees: 51-200 | Colchester, VT, United States | 51-200 | Exact match | 151 contacts → |
“nuHarbor is a U.S-based cybersecurity firm trusted by public sector and critical infrastructure organizations nationwide.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Helpsystemsfortra.comHQ: Eden Prairie, MN, United StatesReported employees: 1,001-5,000 | Eden Prairie, MN, United States | 1,001-5,000 | Exact match | 131 contacts → |
“HelpSystems has long been known for helping organizations become more secure and autonomous.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Authentic8authentic8.comHQ: Redwood City, CA, United StatesReported employees: 51-200 | Redwood City, CA, United States | 51-200 | Exact match | 124 contacts → |
“Authentic8 helps intelligence and security teams investigate the digital world without exposing who they are, where they are, or what they are working on.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Tracesecuritytracesecurity.comHQ: Baton Rouge, LA, United StatesReported employees: 51-200 | Baton Rouge, LA, United States | 51-200 | Exact match | 115 contacts → |
“TraceSecurity is a leading cybersecurity services company, providing a broad range of services and solutions in IT security compliance, risk and vulnerability management, and…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Directdefensedirectdefense.comHQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 111 contacts → |
“DirectDefense provides enterprise risk assessments, penetration testing, ICS/SCADA security services, and 24/7 managed security services for companies of all sizes.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Ioactive, INCioactive.comHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 107 contacts → |
“IOActive is a trusted partner for Global enterprises, providing research-fueled security services across all industries.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Foresite Cybersecurityforesite.comHQ: Overland Park, KS, United StatesReported employees: 51-200 | Overland Park, KS, United States | 51-200 | Exact match | 101 contacts → |
“As the world becomes more connected, our lives and businesses are more vulnerable.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Sitelocksitelock.comHQ: Scottsdale, AZ, United StatesReported employees: 201-500 | Scottsdale, AZ, United States | 201-500 | Exact match | 87 contacts → |
“Join the Global Leader in Website Security – SiteLock!” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Vertek Corporationvertek.comHQ: Burlington, VT, United StatesReported employees: 51-200 | Burlington, VT, United States | 51-200 | Exact match | 81 contacts → |
“At Vertek, we deliver advanced cybersecurity solutions that empower businesses to protect their digital assets and achieve peace of mind.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Techguard Securitytechguard.comHQ: O'fallon, IL, United StatesReported employees: 51-200 | O'fallon, IL, United States | 51-200 | Exact match | 80 contacts → |
“Our Cybersecurity Specialists are highly educated and certified professionals who have utilized their extensive IT security experience to support both Fortune 500 businesses and…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Klik Solutions Managed It, Cybersecurity, Data&tech Solutions Partner Baltimore Austin Miamiklik.solutionsHQ: Baltimore, MD, United StatesReported employees: 11-50 | Baltimore, MD, United States | 11-50 | Exact match | 79 contacts → |
“Technology should push your business forward, not create friction, risk, or uncertainty.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,079 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Website security companies: dataset insights
September 14, 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
1,077 records in the displayed employee bands.
2 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 1,079 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 14, 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 ↗
Questions about this company list
What does Exact match mean for website security 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 website security companies did RevenueBase find based in the United States?
The saved snapshot records 1,079 matching company records, 13,054 tracked contacts and 4,843 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 14, 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
Website security companies by geography
- Website security companies based in Chennai, India
- Website security companies based in Hyderabad, India
- Website security companies based in Mumbai, India
- Website security companies based in Australia
- Website security companies based in Belgium
- Website security companies based in Brazil
- Website security companies based in Canada
- Website security companies based in Chile
- Website security companies based in Colombia
- Website security companies based in France
- Website security companies based in Germany
- Website security companies based in India
Cite this list
RevenueBase Data Team. Top 25 website security companies based in the United States. Snapshot: September 14, 2026. https://revenuebase.ai/companies/website-security-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
- Website security companies based in Chennai, India
- Website security companies based in Hyderabad, India
- Website security companies based in Mumbai, India
- Website security companies based in Australia
- Website security companies based in Belgium
- Website security companies based in Brazil
Company intelligence · public preview
Top 25 website security companies based in the United States
RevenueBase records 1,079 matching company records for website security companies based in the United States, with 13,054 tracked contacts and 4,843 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 14, 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 website security 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 | 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 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 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 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Invictiinvicti.com HQ: Austin, TX, United StatesReported employees: 201-500 | Austin, TX, United States | 201-500 | Exact match | 326 contacts → |
“Invicti is transforming the way web applications are secured.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Loginsoftloginsoft.com HQ: Chantilly, VA, United StatesReported employees: 201-500 | Chantilly, VA, United States | 201-500 | Exact match | 220 contacts → |
“For over 20 years, leading companies in Telecom, Cybersecurity, Healthcare, Banking, New Media, and more have come to rely on Loginsoft as a trusted resource for technology talent.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Mindpoint Group, A Quantum SKY Companymindpointgroup.com HQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 204 contacts → |
“MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Webrootwebroot.com HQ: Broomfield, CO, United StatesReported employees: 501-1,000 | Broomfield, CO, United States | 501-1,000 | Exact match | 199 contacts → |
“Webroot, an OpenText company, was the first to harness the cloud and artificial intelligence to stop zero-day threats in real time.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Safeaeon INCsafeaeon.com HQ: Pleasanton, CA, United StatesReported employees: 51-200 | Pleasanton, CA, United States | 51-200 | Exact match | 196 contacts → |
“SafeAeon leads the industry as a top-tier Cybersecurity-as-a-Service provider, delivering 24x7 premium Managed Security Services with AI-powered and human-driven 24x7 SOC…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Deepseasdeepseas.com HQ: Globally Distributed, United StatesReported employees: 201-500 | Globally Distributed, United States | 201-500 | Exact match | 182 contacts → |
“With 30 years of experience in cyber defense, DeepSeas is trusted by nearly clients around the world, including Fortune 100 enterprises and mid-market organizations, municipality…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Cypfercypfer.com HQ: Miami, FL, United StatesReported employees: 51-200 | Miami, FL, United States | 51-200 | Exact match | 178 contacts → |
“Global Cyber Certainty Champions, in an uncertain digital world.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Cyber Advisorscyberadvisors.com HQ: Maple Grove, MN, United StatesReported employees: 201-500 | Maple Grove, MN, United States | 201-500 | Exact match | 176 contacts → |
“Cyber Advisors is a nationwide leader in cyber security, providing a comprehensive range of Offensive, Defensive, and Risk Management services.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Defendedgedefendedge.com HQ: Elmhurst, IL, United StatesReported employees: 51-200 | Elmhurst, IL, United States | 51-200 | Exact match | 167 contacts → |
“DefendEdge is a leading US-based cybersecurity firm specializing in protecting clients' firewalls, endpoints, and applications against cyber threats and vulnerabilities.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Hitachi Cyberhitachicyber.com HQ: Santa Clara, CA, United StatesReported employees: 501-1,000 | Santa Clara, CA, United States | 501-1,000 | Exact match | 159 contacts → |
“Hitachi Systems Trusted Cyber Management Inc.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Nuharbornuharbor.com HQ: Colchester, VT, United StatesReported employees: 51-200 | Colchester, VT, United States | 51-200 | Exact match | 151 contacts → |
“nuHarbor is a U.S-based cybersecurity firm trusted by public sector and critical infrastructure organizations nationwide.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Helpsystemsfortra.com HQ: Eden Prairie, MN, United StatesReported employees: 1,001-5,000 | Eden Prairie, MN, United States | 1,001-5,000 | Exact match | 131 contacts → |
“HelpSystems has long been known for helping organizations become more secure and autonomous.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Authentic8authentic8.com HQ: Redwood City, CA, United StatesReported employees: 51-200 | Redwood City, CA, United States | 51-200 | Exact match | 124 contacts → |
“Authentic8 helps intelligence and security teams investigate the digital world without exposing who they are, where they are, or what they are working on.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Tracesecuritytracesecurity.com HQ: Baton Rouge, LA, United StatesReported employees: 51-200 | Baton Rouge, LA, United States | 51-200 | Exact match | 115 contacts → |
“TraceSecurity is a leading cybersecurity services company, providing a broad range of services and solutions in IT security compliance, risk and vulnerability management, and…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Directdefensedirectdefense.com HQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 111 contacts → |
“DirectDefense provides enterprise risk assessments, penetration testing, ICS/SCADA security services, and 24/7 managed security services for companies of all sizes.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Ioactive, INCioactive.com HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 107 contacts → |
“IOActive is a trusted partner for Global enterprises, providing research-fueled security services across all industries.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Foresite Cybersecurityforesite.com HQ: Overland Park, KS, United StatesReported employees: 51-200 | Overland Park, KS, United States | 51-200 | Exact match | 101 contacts → |
“As the world becomes more connected, our lives and businesses are more vulnerable.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Sitelocksitelock.com HQ: Scottsdale, AZ, United StatesReported employees: 201-500 | Scottsdale, AZ, United States | 201-500 | Exact match | 87 contacts → |
“Join the Global Leader in Website Security – SiteLock!” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Vertek Corporationvertek.com HQ: Burlington, VT, United StatesReported employees: 51-200 | Burlington, VT, United States | 51-200 | Exact match | 81 contacts → |
“At Vertek, we deliver advanced cybersecurity solutions that empower businesses to protect their digital assets and achieve peace of mind.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Techguard Securitytechguard.com HQ: O'fallon, IL, United StatesReported employees: 51-200 | O'fallon, IL, United States | 51-200 | Exact match | 80 contacts → |
“Our Cybersecurity Specialists are highly educated and certified professionals who have utilized their extensive IT security experience to support both Fortune 500 businesses and…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Klik Solutions Managed It, Cybersecurity, Data&tech Solutions Partner Baltimore Austin Miamiklik.solutions HQ: Baltimore, MD, United StatesReported employees: 11-50 | Baltimore, MD, United States | 11-50 | Exact match | 79 contacts → |
“Technology should push your business forward, not create friction, risk, or uncertainty.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,079 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Website security companies: dataset insights
September 14, 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
1,077 records in the displayed employee bands.
2 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 1,079 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 14, 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 ↗
Questions about this company list
What does Exact match mean for website security 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 website security companies did RevenueBase find based in the United States?
The saved snapshot records 1,079 matching company records, 13,054 tracked contacts and 4,843 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 14, 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
Website security companies by geography
- Website security companies based in Chennai, India
- Website security companies based in Hyderabad, India
- Website security companies based in Mumbai, India
- Website security companies based in Australia
- Website security companies based in Belgium
- Website security companies based in Brazil
- Website security companies based in Canada
- Website security companies based in Chile
- Website security companies based in Colombia
- Website security companies based in France
- Website security companies based in Germany
- Website security companies based in India
Cite this list
RevenueBase Data Team. Top 25 website security companies based in the United States. Snapshot: September 14, 2026. https://revenuebase.ai/companies/website-security-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
- Website security companies based in Chennai, India
- Website security companies based in Hyderabad, India
- Website security companies based in Mumbai, India
- Website security companies based in Australia
- Website security companies based in Belgium
- Website security companies based in Brazil