Company lists · Data refreshed October 2026
Top 19 Cyber security companies based in Herndon, United States
RevenueBase identified 26 company matches for cyber security companies associated with Herndon, United States as of October 2026 and tracks 3,101 professional contacts across them, including 315 with verified work emails. Across the United States, New York is the largest hub for this category (155 companies); Herndon has 26.
This list covers company matches for cyber security companies associated with Herndon, 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 October 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 19 largest cyber security companies based in Herndon, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,949 contacts → | ||||
Exact match “Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 2 | 141 contacts → | ||||
Exact match “The Ntrepid Platform powers the diverse and evolving cyber operations needs of the national security and defense communities and the private sector.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 3 | 122 contacts → | ||||
Exact match “For 30 years, NetCentrics has excelled as an innovative technology solutions provider for the U.S.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 4 | 117 contacts → | ||||
Exact match “Foxhole Technology is a thought-leading technology firm offering a robust suite of cybersecurity, software development, systems engineering, and test & evaluation solutions for…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 5 | 101 contacts → | ||||
Exact match “Founded in 2001, Indigo IT is an award winning information technology consulting and services company.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 6 | 94 contacts → | ||||
Exact match “Truestone provides full lifecycle, business driven technology and information security-oriented services and solutions across the public and private sectors.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 7 | 59 contacts → | ||||
Exact match “Chameleon Consulting Group, LLC was founded by a small group of professionals with extensive experience in cyber operations, software engineering, data analysis, and physical…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 8 | 48 contacts → | ||||
Exact match “Your Vision Achieved.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 9 | 45 contacts → | ||||
Exact match “Cyber Security (Vulnerability Assessments, 24/7 Operations, Hunt Teams, Risk Management, Cyber Response) Program Management (Acquisition, Financial, Technology Insertion) System…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 10 | 38 contacts → | ||||
Exact match “Sphinx Solutions is an entrepreneurial cyber security company that helps private- and public-sector organizations take advantage of solutions that match today’s security…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 11 | 34 contacts → | ||||
Exact match “Network Depot has been serving the DC Metro area since 1991, providing technical support and cybersecurity consulting.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 12 | 33 contacts → | ||||
Exact match “In October 2021, OneZero Solutions, LCC (OneZero), a leading federal cybersecurity and IT solutions provider, announced its acquisition of Right-Sized Solutions Inc.(RSSi), a…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 13 | 27 contacts → | ||||
Exact match “Roka Security, LLC is a computer security firm located in the Washington D.C.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 14 | 13 contacts → | ||||
Exact match “ioSENTRIX is a Cybersecurity Consulting firm.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 15 | 11 contacts → | ||||
Exact match “After years of experience working with the Federal Government, it is apparent that cybersecurity is not operating at its highest potential.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 16 | 7 contacts → | ||||
Exact match “Nuix USG protects, informs, and empowers U.S.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 17 | 4 contacts → | ||||
Exact match “Here at MyTurn, we're a cybersecurity company committed to the advancement of our industry by reducing the "cybersecurity talent gap".” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 18 | 4 contacts → | ||||
Exact match “Aristi is a cybersecurity firm based in the Washington DC metro area.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 19 | 1 contacts → | ||||
Exact match “Information & Infrastructure Technologies Corporation (IIT) is an American information security, technology services and defense consultancy founded in 1997.” Recorded in the RevenueBase company graph · Oct 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 “cyber 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 19 of 26 cyber security companies based in Herndon, United States
See the full list, filter by size, metro and specialty, and access 315 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Cyber security companies based in Herndon, United States at a glance
As of Oct 1, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Herndon, so it is reported there. Company counts and contact totals on this page are exact for Herndon, over 26 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 Herndon, United States whose business descriptions match “cyber 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 315 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 October 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.
Cyber security companies by metro in the United States
- Cyber security companies in New York155
- Cyber security companies in Atlanta94
- Cyber security companies in Washington94
- Cyber security companies in Austin91
- Cyber security companies in Miami82
- Cyber security companies in Houston80
- Cyber security companies in Chicago77
- Cyber security companies in Dallas77
- Cyber security companies in San Francisco75
- Cyber security companies in Tampa66
- Cyber security companies in Arlington51
- Cyber security companies in Columbia48
- Cyber security companies in Las Vegas44
- Cyber security companies in San Diego44
- Cyber security companies in Boston43
- Cyber security companies in Denver43
- Cyber security companies in Los Angeles42
- Cyber security companies in Orlando42
- Cyber security companies in Reston42
- Cyber security companies in Charlotte40
- Cyber security companies in San Antonio40
- Cyber security companies in Baltimore34
- Cyber security companies in Seattle34
- Cyber security companies in Fairfax33
- Cyber security companies in Phoenix33
- Cyber security companies in Huntsville32
- Cyber security companies in Mclean32
- Cyber security companies in Alexandria30
- Cyber security companies in San Jose29
- Cyber security companies in Wilmington29
- Cyber security companies in Plano28
- Cyber security companies in Scottsdale27
- Cyber security companies in Ashburn26
- Cyber security companies in Colorado Springs26
- Cyber security companies in Dover25
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 “cyber security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many cyber security companies are there based in Herndon, United States?
RevenueBase identified 26 company matches for cyber security companies associated with Herndon, United States as of October 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?
Paragon Systems INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in the United States has the most cyber security companies?
New York leads the United States with 155 company records, followed by Atlanta (94) and Washington (94). Herndon has 26.
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 315 professional contacts with verified work emails tracked across these 26 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 October 1, 2026.
Ready to reach these companies? Verified emails and direct dials for all 26 cyber security companies based in Herndon, United States. Start with a free account, no credit card.
Download this list →Related lists
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- Cyber security companies based in Rio De Janeiro, Brazil
- Cyber security companies based in Sao Paulo, Brazil
- Cyber security companies based in Calgary, Canada
- Cyber security companies based in Montreal, Canada
- Cyber security companies based in Ottawa, Canada
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
- Cyber security companies based in Buenos Aires, Argentina
- Cyber security companies based in Brisbane, Australia
- Cyber security companies based in Canberra, Australia
- Cyber security companies based in Melbourne, Australia
- Cyber security companies based in Sydney, Australia
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Company intelligence · public preview
Top 19 cyber security companies based in Herndon, 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 26 matching company records for cyber security companies based in Herndon, United States, with 3,101 tracked contacts and 315 verified work emails.
This public preview shows 19 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 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 19 cyber security companies based in Herndon, 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 |  Paragon Systems INCparasys.comHQ: Herndon, VA, United StatesReported employees: 10001+ | Herndon, VA, United States | 10001+ | Exact match | 1,949 contacts → |
“Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Ntrepid LLCntrepidcorp.comHQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 141 contacts → |
“The Ntrepid Platform powers the diverse and evolving cyber operations needs of the national security and defense communities and the private sector.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Netcentricsnetcentrics.comHQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 122 contacts → |
“For 30 years, NetCentrics has excelled as an innovative technology solutions provider for the U.S.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Foxhole Technologyfoxholetechnology.comHQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 117 contacts → |
“Foxhole Technology is a thought-leading technology firm offering a robust suite of cybersecurity, software development, systems engineering, and test & evaluation solutions for…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Indigo IT LLCindigoit.comHQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 101 contacts → |
“Founded in 2001, Indigo IT is an award winning information technology consulting and services company.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Truestone, LLCtruestonefed.comHQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 94 contacts → |
“Truestone provides full lifecycle, business driven technology and information security-oriented services and solutions across the public and private sectors.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Chameleon Consulting Group LLCchameleoncg.comHQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 59 contacts → |
“Chameleon Consulting Group, LLC was founded by a small group of professionals with extensive experience in cyber operations, software engineering, data analysis, and physical…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  AVINTavintllc.comHQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 48 contacts → |
“Your Vision Achieved.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Athena Technology Groupathenatechgrp.comHQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 45 contacts → |
“Cyber Security (Vulnerability Assessments, 24/7 Operations, Hunt Teams, Risk Management, Cyber Response) Program Management (Acquisition, Financial, Technology Insertion) System…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Sphinx Solutions INCsphinxsolutionsinc.comHQ: Herndon, VA, United StatesReported employees: 11-50 | Herndon, VA, United States | 11-50 | Exact match | 38 contacts → |
“Sphinx Solutions is an entrepreneurial cyber security company that helps private- and public-sector organizations take advantage of solutions that match today’s security…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Network Depotnetworkdepot.usHQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 34 contacts → |
“Network Depot has been serving the DC Metro area since 1991, providing technical support and cybersecurity consulting.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Rssi Onezero Solutionsonezerollc.comHQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 33 contacts → |
“In October 2021, OneZero Solutions, LCC (OneZero), a leading federal cybersecurity and IT solutions provider, announced its acquisition of Right-Sized Solutions Inc.(RSSi), a…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Roka Security, LLCrokasecurity.comHQ: Herndon, VA, United StatesReported employees: 11-50 | Herndon, VA, United States | 11-50 | Exact match | 27 contacts → |
“Roka Security, LLC is a computer security firm located in the Washington D.C.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Iosentrixiosentrix.comHQ: Herndon, VA, United StatesReported employees: 11-50 | Herndon, VA, United States | 11-50 | Exact match | 13 contacts → |
“ioSENTRIX is a Cybersecurity Consulting firm.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Anthony Timbers LLCanthonytimbers.comHQ: Herndon, VA, United StatesReported employees: 1-10 | Herndon, VA, United States | 1-10 | Exact match | 11 contacts → |
“After years of experience working with the Federal Government, it is apparent that cybersecurity is not operating at its highest potential.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Nuix U.S. Governmentnuixusg.comHQ: Herndon, VA, United StatesReported employees: 11-50 | Herndon, VA, United States | 11-50 | Exact match | 7 contacts → |
“Nuix USG protects, informs, and empowers U.S.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Myturnmyturn.careersHQ: Herndon, VA, United StatesReported employees: 1-10 | Herndon, VA, United States | 1-10 | Exact match | 4 contacts → |
“Here at MyTurn, we're a cybersecurity company committed to the advancement of our industry by reducing the "cybersecurity talent gap".” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Aristi Technologies, INCaristitech.comHQ: Herndon, VA, United StatesReported employees: 1-10 | Herndon, VA, United States | 1-10 | Exact match | 4 contacts → |
“Aristi is a cybersecurity firm based in the Washington DC metro area.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | IITiit-corp.com HQ: Herndon, VA, United StatesReported employees: 11-50 | Herndon, VA, United States | 11-50 | Exact match | 1 contacts → |
“Information & Infrastructure Technologies Corporation (IIT) is an American information security, technology services and defense consultancy founded in 1997.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 19 of 26 company matches
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Cyber security companies: dataset insights
October 1, 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
26 records in the displayed employee bands.
0 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 across the whole United States list rather than for Herndon, so it is reported there. Company counts and contact totals on this page are exact for Herndon, over 26 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: October 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 ↗
Cyber security companies by metro in the United States
- Cyber security companies in New York155
- Cyber security companies in Atlanta94
- Cyber security companies in Washington94
- Cyber security companies in Austin91
- Cyber security companies in Miami82
- Cyber security companies in Houston80
- Cyber security companies in Chicago77
- Cyber security companies in Dallas77
- Cyber security companies in San Francisco75
- Cyber security companies in Tampa66
- Cyber security companies in Arlington51
- Cyber security companies in Columbia48
- Cyber security companies in Las Vegas44
- Cyber security companies in San Diego44
- Cyber security companies in Boston43
- Cyber security companies in Denver43
- Cyber security companies in Los Angeles42
- Cyber security companies in Orlando42
- Cyber security companies in Reston42
- Cyber security companies in Charlotte40
- Cyber security companies in San Antonio40
- Cyber security companies in Baltimore34
- Cyber security companies in Seattle34
- Cyber security companies in Fairfax33
- Cyber security companies in Phoenix33
- Cyber security companies in Huntsville32
- Cyber security companies in Mclean32
- Cyber security companies in Alexandria30
- Cyber security companies in San Jose29
- Cyber security companies in Wilmington29
- Cyber security companies in Plano28
- Cyber security companies in Scottsdale27
- Cyber security companies in Ashburn26
- Cyber security companies in Colorado Springs26
- Cyber security companies in Dover25
Questions about this company list
What does Exact match mean for cyber 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 cyber security companies did RevenueBase find based in Herndon, United States?
The saved snapshot records 26 matching company records, 3,101 tracked contacts and 315 verified emails. The public preview displays 19 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: October 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
Cyber security companies by geography
- Cyber security companies based in Buenos Aires, Argentina
- Cyber security companies based in Brisbane, Australia
- Cyber security companies based in Canberra, Australia
- Cyber security companies based in Melbourne, Australia
- Cyber security companies based in Sydney, Australia
- Cyber security companies based in Belo Horizonte, Brazil
- Cyber security companies based in Brasilia, Brazil
- Cyber security companies based in Rio De Janeiro, Brazil
- Cyber security companies based in Sao Paulo, Brazil
- Cyber security companies based in Calgary, Canada
- Cyber security companies based in Montreal, Canada
- Cyber security companies based in Ottawa, Canada
Cite this list
RevenueBase Data Team. Top 19 cyber security companies based in Herndon, United States. Snapshot: October 1, 2026. https://revenuebase.ai/companies/cyber-security-companies/united-states/herndon.
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
- Cyber security companies based in Buenos Aires, Argentina
- Cyber security companies based in Brisbane, Australia
- Cyber security companies based in Canberra, Australia
- Cyber security companies based in Melbourne, Australia
- Cyber security companies based in Sydney, Australia
- Cyber security companies based in Belo Horizonte, Brazil
Company intelligence · public preview
Top 19 cyber security companies based in Herndon, United States
RevenueBase records 26 matching company records for cyber security companies based in Herndon, United States, with 3,101 tracked contacts and 315 verified work emails.
This public preview shows 19 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 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 19 cyber security companies based in Herndon, 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 | Paragon Systems INCparasys.com HQ: Herndon, VA, United StatesReported employees: 10001+ | Herndon, VA, United States | 10001+ | Exact match | 1,949 contacts → |
“Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Ntrepid LLCntrepidcorp.com HQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 141 contacts → |
“The Ntrepid Platform powers the diverse and evolving cyber operations needs of the national security and defense communities and the private sector.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Netcentricsnetcentrics.com HQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 122 contacts → |
“For 30 years, NetCentrics has excelled as an innovative technology solutions provider for the U.S.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Foxhole Technologyfoxholetechnology.com HQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 117 contacts → |
“Foxhole Technology is a thought-leading technology firm offering a robust suite of cybersecurity, software development, systems engineering, and test & evaluation solutions for…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Indigo IT LLCindigoit.com HQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 101 contacts → |
“Founded in 2001, Indigo IT is an award winning information technology consulting and services company.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Truestone, LLCtruestonefed.com HQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 94 contacts → |
“Truestone provides full lifecycle, business driven technology and information security-oriented services and solutions across the public and private sectors.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Chameleon Consulting Group LLCchameleoncg.com HQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 59 contacts → |
“Chameleon Consulting Group, LLC was founded by a small group of professionals with extensive experience in cyber operations, software engineering, data analysis, and physical…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | AVINTavintllc.com HQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 48 contacts → |
“Your Vision Achieved.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Athena Technology Groupathenatechgrp.com HQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 45 contacts → |
“Cyber Security (Vulnerability Assessments, 24/7 Operations, Hunt Teams, Risk Management, Cyber Response) Program Management (Acquisition, Financial, Technology Insertion) System…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Sphinx Solutions INCsphinxsolutionsinc.com HQ: Herndon, VA, United StatesReported employees: 11-50 | Herndon, VA, United States | 11-50 | Exact match | 38 contacts → |
“Sphinx Solutions is an entrepreneurial cyber security company that helps private- and public-sector organizations take advantage of solutions that match today’s security…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Network Depotnetworkdepot.us HQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 34 contacts → |
“Network Depot has been serving the DC Metro area since 1991, providing technical support and cybersecurity consulting.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Rssi Onezero Solutionsonezerollc.com HQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 33 contacts → |
“In October 2021, OneZero Solutions, LCC (OneZero), a leading federal cybersecurity and IT solutions provider, announced its acquisition of Right-Sized Solutions Inc.(RSSi), a…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Roka Security, LLCrokasecurity.com HQ: Herndon, VA, United StatesReported employees: 11-50 | Herndon, VA, United States | 11-50 | Exact match | 27 contacts → |
“Roka Security, LLC is a computer security firm located in the Washington D.C.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Iosentrixiosentrix.com HQ: Herndon, VA, United StatesReported employees: 11-50 | Herndon, VA, United States | 11-50 | Exact match | 13 contacts → |
“ioSENTRIX is a Cybersecurity Consulting firm.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Anthony Timbers LLCanthonytimbers.com HQ: Herndon, VA, United StatesReported employees: 1-10 | Herndon, VA, United States | 1-10 | Exact match | 11 contacts → |
“After years of experience working with the Federal Government, it is apparent that cybersecurity is not operating at its highest potential.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Nuix U.S. Governmentnuixusg.com HQ: Herndon, VA, United StatesReported employees: 11-50 | Herndon, VA, United States | 11-50 | Exact match | 7 contacts → |
“Nuix USG protects, informs, and empowers U.S.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Myturnmyturn.careers HQ: Herndon, VA, United StatesReported employees: 1-10 | Herndon, VA, United States | 1-10 | Exact match | 4 contacts → |
“Here at MyTurn, we're a cybersecurity company committed to the advancement of our industry by reducing the "cybersecurity talent gap".” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Aristi Technologies, INCaristitech.com HQ: Herndon, VA, United StatesReported employees: 1-10 | Herndon, VA, United States | 1-10 | Exact match | 4 contacts → |
“Aristi is a cybersecurity firm based in the Washington DC metro area.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | IITiit-corp.com HQ: Herndon, VA, United StatesReported employees: 11-50 | Herndon, VA, United States | 11-50 | Exact match | 1 contacts → |
“Information & Infrastructure Technologies Corporation (IIT) is an American information security, technology services and defense consultancy founded in 1997.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 19 of 26 company matches
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Cyber security companies: dataset insights
October 1, 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
26 records in the displayed employee bands.
0 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 across the whole United States list rather than for Herndon, so it is reported there. Company counts and contact totals on this page are exact for Herndon, over 26 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: October 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 ↗
Cyber security companies by metro in the United States
- Cyber security companies in New York155
- Cyber security companies in Atlanta94
- Cyber security companies in Washington94
- Cyber security companies in Austin91
- Cyber security companies in Miami82
- Cyber security companies in Houston80
- Cyber security companies in Chicago77
- Cyber security companies in Dallas77
- Cyber security companies in San Francisco75
- Cyber security companies in Tampa66
- Cyber security companies in Arlington51
- Cyber security companies in Columbia48
- Cyber security companies in Las Vegas44
- Cyber security companies in San Diego44
- Cyber security companies in Boston43
- Cyber security companies in Denver43
- Cyber security companies in Los Angeles42
- Cyber security companies in Orlando42
- Cyber security companies in Reston42
- Cyber security companies in Charlotte40
- Cyber security companies in San Antonio40
- Cyber security companies in Baltimore34
- Cyber security companies in Seattle34
- Cyber security companies in Fairfax33
- Cyber security companies in Phoenix33
- Cyber security companies in Huntsville32
- Cyber security companies in Mclean32
- Cyber security companies in Alexandria30
- Cyber security companies in San Jose29
- Cyber security companies in Wilmington29
- Cyber security companies in Plano28
- Cyber security companies in Scottsdale27
- Cyber security companies in Ashburn26
- Cyber security companies in Colorado Springs26
- Cyber security companies in Dover25
Questions about this company list
What does Exact match mean for cyber 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 cyber security companies did RevenueBase find based in Herndon, United States?
The saved snapshot records 26 matching company records, 3,101 tracked contacts and 315 verified emails. The public preview displays 19 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: October 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
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- Cyber security companies based in Ottawa, Canada
Cite this list
RevenueBase Data Team. Top 19 cyber security companies based in Herndon, United States. Snapshot: October 1, 2026. https://revenuebase.ai/companies/cyber-security-companies/united-states/herndon.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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