Company lists · Data refreshed September 2026
Top 24 Cyber security consultancies based in Washington, United States
RevenueBase identified 164 cyber security consultancies headquartered in Washington, United States as of September 2026 and tracks 1,571 professional contacts across them, including 552 with verified work emails. New York is the largest hub.
This list covers cyber security consultancies headquartered in Washington, 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 24 largest cyber security consultancies based in Washington, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 110 contacts → | ||||
Indirect evidence “Illuminate provides government agencies, commercial enterprises, and network operators with the data, services, and technology that helps them protect the information that…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 106 contacts → | ||||
Indirect evidence “ShorePoint recognizes that cybersecurity is the challenge of our generation.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 100 contacts → | ||||
Indirect evidence “Arlo Solutions (Arlo), is a Washington, DC professional services company, providing cybersecurity and management consulting services to the US government in the defense…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 91 contacts → | ||||
Indirect evidence “First Health Advisory partners with healthcare and government organizations to strengthen cybersecurity strategy, build operational resilience, and safeguard patient care.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 87 contacts → | ||||
Strong evidence “ACI Federal™ is an award-winning ISO/IEC 27001 (InfoSec), ISO 9001(QMS) Certified, focused on National Security and Cyber Security Initiatives.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 75 contacts → | ||||
Indirect evidence “REDLattice™ is a U.S-owned global defense tech company delivering preeminent digital access for its customers within the global intelligence community, law enforcement, and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 71 contacts → | ||||
Partial evidence “For over 20 years, TDI’s one and only passion has been delivering cybersecurity solutions to effectively manage the business of cyber.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 67 contacts → | ||||
Partial evidence “The Chertoff Group is a global leader in security.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 37 contacts → | ||||
Partial evidence “Global Security & Innovative Strategies (GSIS) leverages its extensive private sector, homeland, public security, public sector and international expertise to provide…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 32 contacts → | ||||
Partial evidence “Since the inception of cloud computing, we have helped organizations around the world power their business through security and compliance.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 28 contacts → | ||||
Indirect evidence “At JSOC IT, we don’t just offer cybersecurity solutions-we build resilient, secure environments tailored to your business needs.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 26 contacts → | ||||
Indirect evidence “iP-PLUS CONSULTING is an IT solutions company that focuses on providing high quality professionals, innovative technical solutions, and delivering exceptional service support to…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 24 contacts → | ||||
Strong evidence “Good Harbor Security Risk Management, LLC advises Boards, CEOs, CISOs and other corporate executives, investment professionals, and government leaders on managing cyber risk.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 23 contacts → | ||||
Partial evidence “Biztec helps organizations simplify technology, strengthen security, and operate with confidence.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 18 contacts → | ||||
Indirect evidence “kglobal is now part of ROGERCO.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 16 contacts → | ||||
Indirect evidence “Keeping your operations moving and your network secure is our priority because we know that’s your priority.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 16 contacts → | ||||
Indirect evidence “Helping U.S.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 16 contacts → | ||||
Indirect evidence “The Efiia Group delivers cybersecurity solutions for Government.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 10 contacts → | ||||
Partial evidence “InGuardians, Inc is an independent information security consulting company based in Washington D.C.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 10 contacts → | ||||
Indirect evidence “The Wright Way Enterprises (TWW) is certified as an SBA 8(a) and HUBZone small business and DC Certified Business Enterprise (CBE), stewarding organizations in addressing the…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 9 contacts → | ||||
Indirect evidence “AI Consultation and Implementation | Cloud Migration and Maintenance | Cybersecurity Consulting | Data Analytics and Business Intelligence | Regulatory Compliance and Data…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 9 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 9 contacts → | ||||
Partial evidence “Kacidy IT Solutions Simplified - Cloud Computing, Security, IS Audit and Compliance Services, Corporate Training, and Project Management.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 8 contacts → | ||||
Indirect evidence “See where hackers can breach the companies you care about.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cyber security consultancies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names cyber security consultancies.
- Partial evidence
- Its own public description names part of cyber security consultancies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cyber security consultancies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 24 of 164 cyber security consultancies based in Washington, United States
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Cyber security consultancies based in Washington, United States at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 164 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 cyber security consultancies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Washington, United States whose own description of what they do matches “cyber security consultancies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cyber security consultancies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among cyber security consultancies, and records with no verified work email. Companies headquartered outside Washington 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 its RevenueBase Smart Search 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, 552 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 14, 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.
Cyber security consultancies by metro in the United States
- Cyber security consultancies in New York234
- Cyber security consultancies in Washington164
- Cyber security consultancies in Houston141
- Cyber security consultancies in Atlanta138
- Cyber security consultancies in Austin138
- Cyber security consultancies in Dallas130
- Cyber security consultancies in Chicago117
- Cyber security consultancies in Miami115
- Cyber security consultancies in San Francisco101
- Cyber security consultancies in Tampa98
- Cyber security consultancies in Los Angeles85
- Cyber security consultancies in Arlington80
- Cyber security consultancies in San Diego79
- Cyber security consultancies in Denver73
- Cyber security consultancies in Boston71
- Cyber security consultancies in Charlotte66
- Cyber security consultancies in Seattle63
- Cyber security consultancies in Columbia61
- Cyber security consultancies in Alexandria59
- Cyber security consultancies in Orlando57
- Cyber security consultancies in San Antonio56
- Cyber security consultancies in Reston53
- Cyber security consultancies in Las Vegas51
- Cyber security consultancies in Phoenix50
- Cyber security consultancies in Baltimore44
- Cyber security consultancies in Mclean43
- Cyber security consultancies in Portland43
- Cyber security consultancies in Raleigh42
- Cyber security consultancies in Huntsville41
- Cyber security consultancies in Sheridan41
- Cyber security consultancies in Fairfax40
- Cyber security consultancies in Ashburn39
- Cyber security consultancies in Plano39
- Cyber security consultancies in Wilmington38
- Cyber security consultancies in Columbus37
- Cyber security consultancies in Colorado Springs35
- Cyber security consultancies in Minneapolis35
- Cyber security consultancies in San Jose33
- Cyber security consultancies in Pittsburgh32
- Cyber security consultancies in Herndon31
- Cyber security consultancies in Nashville31
- Cyber security consultancies in Richmond31
- Cyber security consultancies in Dover30
- Cyber security consultancies in Irvine30
- Cyber security consultancies in Scottsdale30
- Cyber security consultancies in Frisco29
- Cyber security consultancies in Philadelphia29
- Cyber security consultancies in Fort Lauderdale28
- Cyber security consultancies in Vienna26
- Cyber security consultancies in Alpharetta25
- Cyber security consultancies in Indianapolis25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cyber security consultancies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many cyber security consultancies are there based in Washington, United States?
RevenueBase identified 164 cyber security consultancies headquartered in Washington, 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?
Illuminate Technologies, headquartered in Washington, tops this list with the largest team on record.
Which city has the most cyber security consultancies?
New York leads with 234 headquartered companies, followed by Washington (164) and Houston (141).
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 552 verified decision-maker contacts tracked across these 164 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 14, 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 Smart Search, 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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