Company lists · Data refreshed September 2026
Top 25 Security consulting firms based in Arlington, United States
RevenueBase identified 65 security consulting firms headquartered in Arlington, United States as of September 2026 and tracks 665 professional contacts across them, including 297 with verified work emails. New York is the largest hub.
This list covers security consulting firms headquartered in Arlington, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 6, 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 security consulting firms based in Arlington, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 114 | ||||
“PRO-telligent, LLC, founded in January of is a multi-disciplinary strategic consulting and technology company providing services to Civilian, Defense, and National Security…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | Zermount, INCIndirect evidence | 105 | |||
“Zermount, Inc, a Certified SDVOSB, was founded by Terry Butler a proven leader and Cybersecurity/Information Technology (IT) professional with over15 years’ experience supporting…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 69 | ||||
“Designing Information Security Solutions with YOU in Mind.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | Red5Indirect evidence | 49 | |||
“Our purpose is simple: we prevent bad things from happening to good people.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 45 | ||||
“Founded in 2005, Infolock is the go-to data risk management advisory, consulting, and managed services firm for security conscious organizations.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 32 | ||||
“As a leading Identity Security and Enterprise Application Services consultancy, we enable organizations across the US to mitigate risks and maximize defenses around core identity…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 25 | ||||
“D2 Consulting provides services to the Federal Government focused in the following three area's We leverage D2 Consulting engineering, operations and governance best practices to…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Zeichner Risk Analytics ZRAIndirect evidence | 24 | |||
“For over 20 years, Zeichner Risk Analytics (ZRA) has had small business experience in cybersecurity, risk management, program management, strategic planning and law and policy.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | NextfedStrong evidence | 22 | |||
“Founded in 2011, Nextfed is a strategy consulting and M&A advisory firm headquartered in the National Capitol Region, specializing in U.S National Security and Aerospace.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | Pendleton Solutions, LLCIndirect evidence | 15 | |||
“Pendleton Solutions, LLC is a small woman-owned business dedicated to providing U.S.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 11 | ||||
“Hancock & Poole Security (HPS) Inc.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 8 | ||||
“ENZO IT Solutions,"ENZO", is a leading organization of security, audit, and advisory experts.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | The Enterprise Security ConsultantsPartial evidence | 7 | |||
“The Enterprise Security Consultants, LLC (dba TES Consultants) is an 8(a) Woman-Owned Small Business (WOSB) delivering industry leading cybersecurity and information technology…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | The Reports And Requirements Company, LLC R2cPartial evidence | 7 | |||
“The Reports and Requirements Company, LLC (R2C) is a wholly owned subsidiary of Buchanan & Edwards providing consulting services in intelligence collection, reporting, and data…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 7 | ||||
“Alico Cyber Solutions provides information security serving highly satisfied customers in both the federal and private sectors.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | NeuvikPartial evidence | 6 | |||
“Neuvik is a cybersecurity services company organized into cross-discipline offerings focused on integrating assessments and risk management into comprehensive security solutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 | ||||
“Cyberblack is an Arlington, Virginia based consulting firm that specializes in providing commercial, government and personal solutions in the cybersecurity field.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 | ||||
“Diligent Innovations draws on a unique & dedicated team of professionals with a balanced set of skills and experiences gained in strategy consulting, risk management, and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 | ||||
“Elite Strategy Global (ESG) is a premier security management firm with an engaging collective of agile risk management solutions customized for high-net worth individuals…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Shieldsurge ConsultingStrong evidence | 3 | |||
“Shieldsurge Consulting is a boutique cybersecurity firm specializing in multiple areas of operational IT security, including security engineering, critical incident response…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 | ||||
“CYPHERINTEL is a consulting services company in the Washington, D.C.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 | ||||
“Led by a 20-year veteran of the tech industry, JagKumar’s experienced team delivers IT support, security, staffing, and infrastructure with an emphasis on physical security: CCTV…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 | ||||
“InQwest Inc was founded in 2015 in Arlington, Virginia, by passionate members working within the IT Security Community.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | Manageit SecurityStrong evidence | 2 | |||
“ManageIT Security is a woman-owned small business (WOSB) that provides Cybersecurity consulting services to federal and private sector clients.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | Sytech Solutions, LLCStrong evidence | 2 | |||
“Part of our extensive Cyber Security consulting portfolio, some services include managing Risk Management, Cloud Security, Compliance Management, backup and disaster recovery…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 65 security consulting firms based in Arlington, United States
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Security consulting firms based in Arlington, United States at a glance
As of Sep 6, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Arlington, over 65 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among security consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- 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
- Companies headquartered in Arlington, United States whose own description of what they do matches “security consulting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among security consulting firms, and records with no verified work email. Companies headquartered outside Arlington are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 297 across the full list. 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 6, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Security consulting firms by metro in the United States
- Security consulting firms in New York189
- Security consulting firms in Washington139
- Security consulting firms in Houston124
- Security consulting firms in Atlanta118
- Security consulting firms in Austin96
- Security consulting firms in Chicago90
- Security consulting firms in Dallas90
- Security consulting firms in Los Angeles88
- Security consulting firms in Miami88
- Security consulting firms in San Francisco73
- Security consulting firms in Arlington65
- Security consulting firms in Tampa63
- Security consulting firms in Denver56
- Security consulting firms in San Diego55
- Security consulting firms in Alexandria53
- Security consulting firms in Charlotte53
- Security consulting firms in Seattle52
- Security consulting firms in Boston47
- Security consulting firms in Orlando43
- Security consulting firms in San Antonio43
- Security consulting firms in Las Vegas41
- Security consulting firms in Columbia39
- Security consulting firms in Phoenix39
- Security consulting firms in Reston37
- Security consulting firms in Raleigh36
- Security consulting firms in Minneapolis35
- Security consulting firms in Baltimore33
- Security consulting firms in Mclean33
- Security consulting firms in Huntsville29
- Security consulting firms in Columbus28
- Security consulting firms in Herndon28
- Security consulting firms in San Jose28
- Security consulting firms in Pittsburgh27
- Security consulting firms in Ashburn26
- Security consulting firms in Colorado Springs26
- Security consulting firms in Scottsdale26
- Security consulting firms in Philadelphia25
- Security consulting firms in Richmond25
Frequently asked
How many security consulting firms are there based in Arlington, United States?
RevenueBase identified 65 security consulting firms headquartered in Arlington, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Pro-Telligent, LLC, headquartered in Arlington, tops this list with the largest team on record.
Which city has the most security consulting firms?
New York leads with 189 headquartered companies, followed by Washington (139) and Houston (124).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 297 verified decision-maker contacts tracked across these 65 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 2026.
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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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