Company lists · Data refreshed September 2026
Top 25 Defense cybersecurity companies based in Arlington, United States
RevenueBase identified 58 company matches for defense cybersecurity companies associated with Arlington, United States as of September 2026 and tracks 1,934 professional contacts across them, including 844 with verified work emails and 952 with mobile numbers. Across the United States, Washington is the largest hub for this category (91 companies); Arlington has 56.
This list covers company matches for defense cybersecurity companies associated with Arlington, 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 10, 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 defense cybersecurity companies based in Arlington, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 647 contacts → | ||||
Exact match “At Two Six Technologies, we build, deploy, and implement innovative products that solve the world’s most complex challenges today.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 2 | 265 contacts → | ||||
Exact match “For nearly two decades, Millennium Corporation has been operating on the leading edge of cybersecurity.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 3 | 237 contacts → | ||||
Exact match “Cydecor advances national security through innovative end-to-end solutions to our customers around the globe.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 4 | 69 contacts → | ||||
Exact match “Designing Information Security Solutions with YOU in Mind.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 5 | 60 contacts → | ||||
Exact match “Sancorp Consulting, LLC is focused on providing tailored, professional solutions in the areas of Insider Threat, Artificial Intelligence/Machine Learning, Identity Activities, and…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 6 | 59 contacts → | ||||
Exact match “Tesla Laboratories provides Cyber Security, Intelligence Analysis, Financial Management and Program Management services to the Intelligence Community, the Department of Defense…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 7 | 58 contacts → | ||||
Exact match “CYBASTION develops robust world-class cybersecurity solutions tailored to suit the needs of different businesses, governments and public sector entities.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 8 | 47 contacts → | ||||
Exact match “System Planning Corporation (SPC)’s success supporting U.S.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 9 | 41 contacts → | ||||
Exact match “ACI Solutions is a Secure Cloud and Managed Services Provider with U.S headquarters in Arlington, Virginia.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 10 | 33 contacts → | ||||
Exact match “Sun Management is a customer focused cybersecurity & advanced network solutions firm providing products and services that help solve your most difficult IT challenges.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 11 | 27 contacts → | ||||
Exact match “Big Business Capability from a Small Business HLinc delivers holistic solutions to our customers’ needs – we develop, integrate, and implement technological solutions, customized…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 12 | 21 contacts → | ||||
Exact match “Cybersecurity Research and Development firm” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 13 | 19 contacts → | ||||
Exact match “STP is an IT services company that specializes in building mission critical infrastructure, applications and cybersecurity systems.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 14 | 14 contacts → | ||||
Exact match “CEDELIS is an 8(a) Service-Disabled Minority Veteran-Owned Small Business (SDVOSB) that offers innovative IT services to Federal and Civilian agencies, located in the Washington…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 15 | 13 contacts → | ||||
Exact match “ExistX was founded in 2023 with the goal to combine cutting edge invention with practical implementation in the unique environments our customers demand to solve national security…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 16 | 11 contacts → | ||||
Exact match “Hancock & Poole Security (HPS) Inc.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 17 | 11 contacts → | ||||
Exact match “Dowless & Associates was incorporated in Dowless & Associates' competencies include Information and Cyber Security, IT Integration, Organizational Change Management and Integrated…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 18 | 10 contacts → | ||||
Exact match “Cynnovative’s mission: To enable our customers to achieve superiority in the cyber domain by rewriting the laws of cyber and advancing state-of-the-art machine learning and…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 19 | 7 contacts → | ||||
Exact match “The Enterprise Security Consultants, LLC (dba TES Consultants) is an 8(a) Woman-Owned Small Business (WOSB) delivering industry leading cybersecurity and information technology…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 20 | 7 contacts → | ||||
Exact match “Amches provides Wireless and Cyber Security Solutions using proprietary advanced Agile Methodology to cohesively integrate Program Management, Systems Engineering, and both…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 21 | 6 contacts → | ||||
Exact match “Tactibit is a small business serving Federal customers, specializing in Cybersecurity, Cloud Services and IT Operations.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 22 | 6 contacts → | ||||
Exact match “Neuvik is a cybersecurity services company organized into cross-discipline offerings focused on integrating assessments and risk management into comprehensive security solutions.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 23 | 6 contacts → | ||||
Exact match “Cyberblack is an Arlington, Virginia based consulting firm that specializes in providing commercial, government and personal solutions in the cybersecurity field.” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 24 | 4 contacts → | ||||
Exact match “Whether it's cybersecurity, cloud computing, data analytics, emerging technologies, or operational guidance, our experts possess the knowledge and skills necessary to deliver…” Recorded in the RevenueBase company graph · Sep 10, 2026 · View company records in RevenueBase | |||||
| 25 | 4 contacts → | ||||
Exact match “Can your cybersecurity really be the make or break of your company?” Recorded in the RevenueBase company graph · Sep 10, 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 “defense cybersecurity 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 58 defense cybersecurity companies based in Arlington, United States
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Defense cybersecurity companies based in Arlington, United States at a glance
As of Sep 10, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 13.0dCompany record updated
Median 55.0dHow 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 Arlington, United States whose business descriptions match “defense cybersecurity 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 844 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 10, 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.
Defense cybersecurity companies by metro in the United States
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 “defense cybersecurity companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many defense cybersecurity companies are there based in Arlington, United States?
RevenueBase identified 58 company matches for defense cybersecurity companies associated with Arlington, 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?
TWO SIX Technologies 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 defense cybersecurity companies?
Washington leads the United States with 91 company records, followed by New York (84) and Houston (58). Arlington has 56.
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 844 professional contacts with verified work emails tracked across these 58 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 10, 2026.
Ready to reach these companies? Verified emails and direct dials for all 58 defense cybersecurity companies based in Arlington, United States. Start with a free account, no credit card.
Download this list →Related lists
Defense cybersecurity companies by geography
- Defense cybersecurity companies based in the United States
- Defense cybersecurity companies based in the United Kingdom
- Defense cybersecurity companies based in Canada
- Defense cybersecurity companies based in Brazil
- Defense cybersecurity companies based in France
- Defense cybersecurity companies based in Australia
- Defense cybersecurity companies based in Germany
- Defense cybersecurity companies based in Mexico
- Defense cybersecurity companies based in Spain
- Defense cybersecurity companies based in Italy
- Defense cybersecurity companies based in Israel
- Defense cybersecurity companies based in the Netherlands
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.
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- Defense cybersecurity companies based in the United States
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- Defense cybersecurity companies based in Canada
- Defense cybersecurity companies based in Brazil
- Defense cybersecurity companies based in France
- Defense cybersecurity companies based in Australia
Company intelligence · public preview
Top 25 defense cybersecurity companies based in Arlington, 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 58 matching company records for defense cybersecurity companies based in Arlington, United States, with 1,934 tracked contacts and 844 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 10, 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 defense cybersecurity companies based in Arlington, 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 |  TWO SIX Technologiestwosixtech.comHQ: Arlington, VA, United StatesReported employees: 501-1,000 | Arlington, VA, United States | 501-1,000 | Exact match | 647 contacts → |
“At Two Six Technologies, we build, deploy, and implement innovative products that solve the world’s most complex challenges today.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Millennium Corporationmillgroupinc.com HQ: Arlington, VA, United StatesReported employees: 201-500 | Arlington, VA, United States | 201-500 | Exact match | 265 contacts → |
“For nearly two decades, Millennium Corporation has been operating on the leading edge of cybersecurity.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Cydecor, INCcydecor.comHQ: Arlington, VA, United StatesReported employees: 501-1,000 | Arlington, VA, United States | 501-1,000 | Exact match | 237 contacts → |
“Cydecor advances national security through innovative end-to-end solutions to our customers around the globe.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  First Information Technology Services, INCfirstinfotech.comHQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 69 contacts → |
“Designing Information Security Solutions with YOU in Mind.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Sancorp Consulting, LLCsancorpconsulting.comHQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 60 contacts → |
“Sancorp Consulting, LLC is focused on providing tailored, professional solutions in the areas of Insider Threat, Artificial Intelligence/Machine Learning, Identity Activities, and…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Tesla Laboratories, INCtesla.netHQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 59 contacts → |
“Tesla Laboratories provides Cyber Security, Intelligence Analysis, Financial Management and Program Management services to the Intelligence Community, the Department of Defense…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Cybastioncybastiontech.comHQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 58 contacts → |
“CYBASTION develops robust world-class cybersecurity solutions tailored to suit the needs of different businesses, governments and public sector entities.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  System Planning Corporationsysplan.comHQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 47 contacts → |
“System Planning Corporation (SPC)’s success supporting U.S.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  ACI Solutionsacisolutions.netHQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 41 contacts → |
“ACI Solutions is a Secure Cloud and Managed Services Provider with U.S headquarters in Arlington, Virginia.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  SUN Managementsunmanagement.netHQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 33 contacts → |
“Sun Management is a customer focused cybersecurity & advanced network solutions firm providing products and services that help solve your most difficult IT challenges.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  HLINChlinc.comHQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 27 contacts → |
“Big Business Capability from a Small Business HLinc delivers holistic solutions to our customers’ needs – we develop, integrate, and implement technological solutions, customized…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  A2 Labs, LLCa2labs.comHQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 21 contacts → |
“Cybersecurity Research and Development firm” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Strategic Technology Partnersstpfederal.comHQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 19 contacts → |
“STP is an IT services company that specializes in building mission critical infrastructure, applications and cybersecurity systems.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Cedeliscedelis.comHQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 14 contacts → |
“CEDELIS is an 8(a) Service-Disabled Minority Veteran-Owned Small Business (SDVOSB) that offers innovative IT services to Federal and Civilian agencies, located in the Washington…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Existxexistx.comHQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 13 contacts → |
“ExistX was founded in 2023 with the goal to combine cutting edge invention with practical implementation in the unique environments our customers demand to solve national security…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Hancock & Poole Security INChpssec.comHQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 11 contacts → |
“Hancock & Poole Security (HPS) Inc.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Dowless & Associates, INCdowless.comHQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 11 contacts → |
“Dowless & Associates was incorporated in Dowless & Associates' competencies include Information and Cyber Security, IT Integration, Organizational Change Management and Integrated…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Cynnovativecynnovative.comHQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 10 contacts → |
“Cynnovative’s mission: To enable our customers to achieve superiority in the cyber domain by rewriting the laws of cyber and advancing state-of-the-art machine learning and…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  The Enterprise Security Consultantstesconsultants.comHQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 7 contacts → |
“The Enterprise Security Consultants, LLC (dba TES Consultants) is an 8(a) Woman-Owned Small Business (WOSB) delivering industry leading cybersecurity and information technology…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Amchesiimage.comHQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 7 contacts → |
“Amches provides Wireless and Cyber Security Solutions using proprietary advanced Agile Methodology to cohesively integrate Program Management, Systems Engineering, and both…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Tactibit Technologiestactibit.comHQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 6 contacts → |
“Tactibit is a small business serving Federal customers, specializing in Cybersecurity, Cloud Services and IT Operations.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Neuvikneuvik.comHQ: Arlington, VA, United StatesReported employees: 1-10 | Arlington, VA, United States | 1-10 | Exact match | 6 contacts → |
“Neuvik is a cybersecurity services company organized into cross-discipline offerings focused on integrating assessments and risk management into comprehensive security solutions.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Cyberblackcyberblack.comHQ: Arlington, VA, United StatesReported employees: 1-10 | Arlington, VA, United States | 1-10 | Exact match | 6 contacts → |
“Cyberblack is an Arlington, Virginia based consulting firm that specializes in providing commercial, government and personal solutions in the cybersecurity field.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Cystemic Securitycystemicsecurity.comHQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 4 contacts → |
“Whether it's cybersecurity, cloud computing, data analytics, emerging technologies, or operational guidance, our experts possess the knowledge and skills necessary to deliver…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Prydetechprydetech.comHQ: Arlington, TX, United StatesReported employees: 1-10 | Arlington, TX, United States | 1-10 | Exact match | 4 contacts → |
“Can your cybersecurity really be the make or break of your company?” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 58 company matches
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Defense cybersecurity companies: dataset insights
September 10, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
58 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.
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 13.0dCompany record updated
Median 55.0dHow this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 10, 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 ↗
Defense cybersecurity companies by metro in the United States
Questions about this company list
What does Exact match mean for defense cybersecurity 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 defense cybersecurity companies did RevenueBase find based in Arlington, United States?
The saved snapshot records 58 matching company records, 1,934 tracked contacts and 844 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 10, 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
Defense cybersecurity companies by geography
- Defense cybersecurity companies based in the United States
- Defense cybersecurity companies based in the United Kingdom
- Defense cybersecurity companies based in Canada
- Defense cybersecurity companies based in Brazil
- Defense cybersecurity companies based in France
- Defense cybersecurity companies based in Australia
- Defense cybersecurity companies based in Germany
- Defense cybersecurity companies based in Mexico
- Defense cybersecurity companies based in Spain
- Defense cybersecurity companies based in Italy
- Defense cybersecurity companies based in Israel
- Defense cybersecurity companies based in the Netherlands
Cite this list
RevenueBase Data Team. Top 25 defense cybersecurity companies based in Arlington, United States. Snapshot: September 10, 2026. https://revenuebase.ai/companies/defense-cybersecurity-companies/united-states/arlington.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
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- Defense cybersecurity companies based in the United States
- Defense cybersecurity companies based in the United Kingdom
- Defense cybersecurity companies based in Canada
- Defense cybersecurity companies based in Brazil
- Defense cybersecurity companies based in France
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Company intelligence · public preview
Top 25 defense cybersecurity companies based in Arlington, United States
RevenueBase records 58 matching company records for defense cybersecurity companies based in Arlington, United States, with 1,934 tracked contacts and 844 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 10, 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 defense cybersecurity companies based in Arlington, 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 | TWO SIX Technologiestwosixtech.com HQ: Arlington, VA, United StatesReported employees: 501-1,000 | Arlington, VA, United States | 501-1,000 | Exact match | 647 contacts → |
“At Two Six Technologies, we build, deploy, and implement innovative products that solve the world’s most complex challenges today.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Millennium Corporationmillgroupinc.com HQ: Arlington, VA, United StatesReported employees: 201-500 | Arlington, VA, United States | 201-500 | Exact match | 265 contacts → |
“For nearly two decades, Millennium Corporation has been operating on the leading edge of cybersecurity.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Cydecor, INCcydecor.com HQ: Arlington, VA, United StatesReported employees: 501-1,000 | Arlington, VA, United States | 501-1,000 | Exact match | 237 contacts → |
“Cydecor advances national security through innovative end-to-end solutions to our customers around the globe.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | First Information Technology Services, INCfirstinfotech.com HQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 69 contacts → |
“Designing Information Security Solutions with YOU in Mind.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Sancorp Consulting, LLCsancorpconsulting.com HQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 60 contacts → |
“Sancorp Consulting, LLC is focused on providing tailored, professional solutions in the areas of Insider Threat, Artificial Intelligence/Machine Learning, Identity Activities, and…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Tesla Laboratories, INCtesla.net HQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 59 contacts → |
“Tesla Laboratories provides Cyber Security, Intelligence Analysis, Financial Management and Program Management services to the Intelligence Community, the Department of Defense…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Cybastioncybastiontech.com HQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 58 contacts → |
“CYBASTION develops robust world-class cybersecurity solutions tailored to suit the needs of different businesses, governments and public sector entities.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | System Planning Corporationsysplan.com HQ: Arlington, VA, United StatesReported employees: 51-200 | Arlington, VA, United States | 51-200 | Exact match | 47 contacts → |
“System Planning Corporation (SPC)’s success supporting U.S.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | ACI Solutionsacisolutions.net HQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 41 contacts → |
“ACI Solutions is a Secure Cloud and Managed Services Provider with U.S headquarters in Arlington, Virginia.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | SUN Managementsunmanagement.net HQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 33 contacts → |
“Sun Management is a customer focused cybersecurity & advanced network solutions firm providing products and services that help solve your most difficult IT challenges.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HLINChlinc.com HQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 27 contacts → |
“Big Business Capability from a Small Business HLinc delivers holistic solutions to our customers’ needs – we develop, integrate, and implement technological solutions, customized…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | A2 Labs, LLCa2labs.com HQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 21 contacts → |
“Cybersecurity Research and Development firm” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Strategic Technology Partnersstpfederal.com HQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 19 contacts → |
“STP is an IT services company that specializes in building mission critical infrastructure, applications and cybersecurity systems.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Cedeliscedelis.com HQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 14 contacts → |
“CEDELIS is an 8(a) Service-Disabled Minority Veteran-Owned Small Business (SDVOSB) that offers innovative IT services to Federal and Civilian agencies, located in the Washington…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Existxexistx.com HQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 13 contacts → |
“ExistX was founded in 2023 with the goal to combine cutting edge invention with practical implementation in the unique environments our customers demand to solve national security…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Hancock & Poole Security INChpssec.com HQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 11 contacts → |
“Hancock & Poole Security (HPS) Inc.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Dowless & Associates, INCdowless.com HQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 11 contacts → |
“Dowless & Associates was incorporated in Dowless & Associates' competencies include Information and Cyber Security, IT Integration, Organizational Change Management and Integrated…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cynnovativecynnovative.com HQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 10 contacts → |
“Cynnovative’s mission: To enable our customers to achieve superiority in the cyber domain by rewriting the laws of cyber and advancing state-of-the-art machine learning and…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | The Enterprise Security Consultantstesconsultants.com HQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 7 contacts → |
“The Enterprise Security Consultants, LLC (dba TES Consultants) is an 8(a) Woman-Owned Small Business (WOSB) delivering industry leading cybersecurity and information technology…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Amchesiimage.com HQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 7 contacts → |
“Amches provides Wireless and Cyber Security Solutions using proprietary advanced Agile Methodology to cohesively integrate Program Management, Systems Engineering, and both…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Tactibit Technologiestactibit.com HQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 6 contacts → |
“Tactibit is a small business serving Federal customers, specializing in Cybersecurity, Cloud Services and IT Operations.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Neuvikneuvik.com HQ: Arlington, VA, United StatesReported employees: 1-10 | Arlington, VA, United States | 1-10 | Exact match | 6 contacts → |
“Neuvik is a cybersecurity services company organized into cross-discipline offerings focused on integrating assessments and risk management into comprehensive security solutions.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Cyberblackcyberblack.com HQ: Arlington, VA, United StatesReported employees: 1-10 | Arlington, VA, United States | 1-10 | Exact match | 6 contacts → |
“Cyberblack is an Arlington, Virginia based consulting firm that specializes in providing commercial, government and personal solutions in the cybersecurity field.” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Cystemic Securitycystemicsecurity.com HQ: Arlington, VA, United StatesReported employees: 11-50 | Arlington, VA, United States | 11-50 | Exact match | 4 contacts → |
“Whether it's cybersecurity, cloud computing, data analytics, emerging technologies, or operational guidance, our experts possess the knowledge and skills necessary to deliver…” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Prydetechprydetech.com HQ: Arlington, TX, United StatesReported employees: 1-10 | Arlington, TX, United States | 1-10 | Exact match | 4 contacts → |
“Can your cybersecurity really be the make or break of your company?” Recorded description excerpt · September 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 58 company matches
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Defense cybersecurity companies: dataset insights
September 10, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
58 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.
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 13.0dCompany record updated
Median 55.0dHow this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 10, 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 ↗
Defense cybersecurity companies by metro in the United States
Questions about this company list
What does Exact match mean for defense cybersecurity 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 defense cybersecurity companies did RevenueBase find based in Arlington, United States?
The saved snapshot records 58 matching company records, 1,934 tracked contacts and 844 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 10, 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.
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Cite this list
RevenueBase Data Team. Top 25 defense cybersecurity companies based in Arlington, United States. Snapshot: September 10, 2026. https://revenuebase.ai/companies/defense-cybersecurity-companies/united-states/arlington.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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