Company lists · Data refreshed September 2026
Top 24 Government cybersecurity consulting firms based in New York, United States
RevenueBase identified 138 government cybersecurity consulting firms headquartered in New York, United States as of September 2026 and tracks 1,435 professional contacts across them, including 591 with verified work emails. Across the United States, Washington is the largest hub for this category (144 companies); New York follows with 138.
This list covers government cybersecurity consulting firms headquartered in New York, 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 28, 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 government cybersecurity consulting firms based in New York, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 268 contacts → | ||||
Indirect evidence “We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 163 contacts → | ||||
Partial evidence “Harbor IT helps organizations secure, operate, and scale through integrated IT, cybersecurity, AI, and cloud services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 76 contacts → | ||||
Partial evidence “NopalCyber makes cybersecurity manageable, affordable, reliable, and powerful for companies that need to be resilient and compliant.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 66 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 65 contacts → | ||||
Partial evidence “RevelSI is a global cybersecurity, AI, software, and infrastructure services organization.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 48 contacts → | ||||
Partial evidence “At Salus GRC, we offer more than just compliance and cybersecurity services – we provide a personalized commitment to your success.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 38 contacts → | ||||
Indirect evidence “We're the security consultants Fortune 500s call when they're in real trouble, the ones who find what others miss, who speak CEO and CISO fluently.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 28 contacts → | ||||
Partial evidence “CipherTechs is now part of CyberMaxx, a tech-enabled cybersecurity service provider.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 22 contacts → | ||||
Partial evidence “TAG serves the cybersecurity community, primarily with enterprise, vendors, and venture capital.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 21 contacts → | ||||
Indirect evidence “Gotham Digital Science (GDS) was acquired in 2016 by Stroz Friedberg, an Aon company.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 19 contacts → | ||||
Partial evidence “ACA Aponix, a division of ACA Group, provides cybersecurity and technology risk assessments, vendor and M&A diligence services, network testing, and advisory services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 16 contacts → | ||||
Strong evidence “Unit 221B is a threat disruption company delivering actionable threat intelligence and cybersecurity solutions that enable enterprises, law enforcement, and government agencies to…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 14 contacts → | ||||
Partial evidence “IA-TechCenter is a leading IT- Consulting firm composed of experts specializing in Program, and Project Management Services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 12 contacts → | ||||
Indirect evidence “At Silent Breach, we think like a hacker and defend like a pro.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 11 contacts → | ||||
Indirect evidence “Octillo is one of the few law firms in the country focused exclusively on data security and privacy, incident response, and litigation.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 11 contacts → | ||||
Partial evidence “Top notch services at reasonable cost RGS Global Advisors has a wealth of internal audit, FDICIA and SOX testing, remediation, consultancy, BSA/AML/OFAC, IT/IS/Cybersecurity &…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 11 contacts → | ||||
Indirect evidence “CompCiti has been providing IT auditing, compliance, security and management services for over 20 years.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 9 contacts → | ||||
Indirect evidence “Techgardens is a systems integrator founded in 2009 and based in New York.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 9 contacts → | ||||
Partial evidence “Resonance Security offers full spectrum cybersecurity aggregation software for institutions and individuals that makes protecting against any cybersecurity threat effortless no…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 8 contacts → | ||||
Indirect evidence “At SeaGlass Technology we specialize using our proprietary methodology and processes developed from our VCISO team and experienced tech teams approach to managing Hedge Funds IT &…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 8 contacts → | ||||
Indirect evidence “Sayfer, where people and technology meet to overcome web3 and blockchain challenges.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 8 contacts → | ||||
Indirect evidence “HolistiCyber’s mission is to assist corporations in defending themselves from the new phase of evolution in Cyber threats - not only in volume, but in the level of sophistication.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 7 contacts → | ||||
Indirect evidence “MITG exists because most businesses don't need another security vendor.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 7 contacts → | ||||
Partial evidence “Sniper Watch is an AI-powered cybersecurity and technology advisory + tactical deployment firm that helps organizations protect revenue, reduce risk, and scale operations in…” Source: RevenueBase Database · checked Sep 28, 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: government cybersecurity consulting firms. 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 government cybersecurity consulting firms.
- Partial evidence
- Its own public description names part of government cybersecurity consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name government cybersecurity consulting firms. 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 138 government cybersecurity consulting firms based in New York, United States
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Government cybersecurity consulting firms based in New York, United States at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 138 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 government cybersecurity consulting firms, 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 New York, United States whose own description of what they do matches “government cybersecurity consulting firms”. 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 government cybersecurity consulting firms), 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 government cybersecurity consulting firms, and records with no verified work email. Companies headquartered outside New York 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, 591 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 28, 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.
Government cybersecurity consulting firms by metro in the United States
- Government cybersecurity consulting firms in Washington144
- Government cybersecurity consulting firms in Atlanta105
- Government cybersecurity consulting firms in Austin94
- Government cybersecurity consulting firms in Houston94
- Government cybersecurity consulting firms in Dallas87
- Government cybersecurity consulting firms in Tampa83
- Government cybersecurity consulting firms in Miami78
- Government cybersecurity consulting firms in Chicago75
- Government cybersecurity consulting firms in Arlington65
- Government cybersecurity consulting firms in San Francisco65
- Government cybersecurity consulting firms in Columbia56
- Government cybersecurity consulting firms in San Diego55
- Government cybersecurity consulting firms in Alexandria53
- Government cybersecurity consulting firms in Los Angeles53
- Government cybersecurity consulting firms in Reston50
- Government cybersecurity consulting firms in Charlotte47
- Government cybersecurity consulting firms in Denver47
- Government cybersecurity consulting firms in San Antonio44
- Government cybersecurity consulting firms in Boston42
- Government cybersecurity consulting firms in Mclean41
- Government cybersecurity consulting firms in Baltimore40
- Government cybersecurity consulting firms in Ashburn37
- Government cybersecurity consulting firms in Orlando37
- Government cybersecurity consulting firms in Seattle37
- Government cybersecurity consulting firms in Herndon35
- Government cybersecurity consulting firms in Phoenix35
- Government cybersecurity consulting firms in Fairfax34
- Government cybersecurity consulting firms in Huntsville34
- Government cybersecurity consulting firms in Raleigh34
- Government cybersecurity consulting firms in Las Vegas30
- Government cybersecurity consulting firms in Vienna28
- Government cybersecurity consulting firms in Minneapolis26
- Government cybersecurity consulting firms in Portland25
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 government cybersecurity consulting firms, 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 government cybersecurity consulting firms are there based in New York, United States?
RevenueBase identified 138 government cybersecurity consulting firms headquartered in New York, 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?
Guidepost Solutions, headquartered in New York, tops this list with the largest team on record.
Which city in the United States has the most government cybersecurity consulting firms?
Washington leads the United States with 144 headquartered companies, followed by New York (138) and Atlanta (105).
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 591 verified decision-maker contacts tracked across these 138 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 28, 2026.
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Government cybersecurity consulting firms by geography
- Government cybersecurity consulting firms based in Brisbane, Australia
- Government cybersecurity consulting firms based in Canberra, Australia
- Government cybersecurity consulting firms based in Melbourne, Australia
- Government cybersecurity consulting firms based in Sydney, Australia
- Government cybersecurity consulting firms based in Rio De Janeiro, Brazil
- Government cybersecurity consulting firms based in Sao Paulo, Brazil
- Government cybersecurity consulting firms based in Calgary, Canada
- Government cybersecurity consulting firms based in Montreal, Canada
- Government cybersecurity consulting firms based in Ottawa, Canada
- Government cybersecurity consulting firms based in Toronto, Canada
- Government cybersecurity consulting firms based in Vancouver, Canada
- Government cybersecurity consulting firms based in Santiago, Chile
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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