Company lists · Data refreshed September 2026
Top 25 Network security consulting firms based in the United States
RevenueBase identified 5,469 network security consulting firms headquartered in the United States as of September 2026 and tracks 70,424 professional contacts across them, including 24,030 with verified work emails and 23,575 with mobile numbers. New York is the largest hub.
This list covers network security consulting firms headquartered in the 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 5, 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 network security consulting firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 11,169 | ||||
“Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,222 | ||||
“Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,252 | ||||
“Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,232 | ||||
“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 947 | ||||
“Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 874 | ||||
“Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 844 | ||||
“Today’s threatscape is relentless.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 629 | ||||
“Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 523 | ||||
“UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program, finding what's vulnerable, stopping…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 473 | ||||
“At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 416 | ||||
“United Security Inc.(USI) provides personalized security solutions enhanced by advanced technology and cyber services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 381 | ||||
“AppGate secures and protects an organization's most valuable assets with its high performance Zero Trust Network Access (ZTNA) solution and Cyber Advisory Services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 369 | ||||
“As of April 2023, Paladion is part of Atos Group.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 365 | ||||
“Welcome to IBN Technologies, LLC, Your Trusted Partner in Cybersecurity, Cloud, and Finance Solutions With 26+ years of expertise, IBN Technologies leads in delivering integrated…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 344 | ||||
“Bishop Fox is recognized as the leading authority in offensive security, providing solutions ranging from continuous penetration testing, red teaming, and attack surface…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 327 | ||||
“For the security practitioner caught between rapidly evolving threats and demanding executives, IANS Research is a clear-headed resource for decision-making and articulating risk.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | CTIIndirect evidence | 323 | |||
“Continental Technologies Inc (CTI) configures, distributes, designs and maintains technology solutions for customers around the globe and remains both privately-held and locally…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 317 | ||||
“Intelligent Technical Solutions is your trusted business partner for all your Cybersecurity, Managed and Co-managed IT support, Risk & Compliance, Data Analytics, and Consulting…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 315 | ||||
“We deliver cybersecurity consulting, 24x7 operations and SaaS to leading companies in the Financial Services, Healthcare, Pharmaceuticals, Technology and Retail industries.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 300 | ||||
“Welcome to Logically.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 272 | ||||
“Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 255 | ||||
“Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | Orion Security SolutionsPartial evidence | 250 | |||
“Orion Security Systems (OSS) provides elite technical, physical, and cyber security solutions for customers with simple to complex needs.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 249 | ||||
“Lumifi Cyber helps organizations illuminate their cyber defense with continuous protection across the full security lifecycle.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 236 | ||||
“NTG is where excellence meets innovation.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 5,469 network security consulting firms based in the United States
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Network security consulting firms based in the United States at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 network 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 the United States whose own description of what they do matches “network 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 network security consulting firms, and records with no verified work email. Companies headquartered outside United States 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, 24,030 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 5, 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.
Network security consulting firms by metro
- Network security consulting firms in New York134
- Network security consulting firms in Houston102
- Network security consulting firms in Washington98
- Network security consulting firms in Atlanta97
- Network security consulting firms in Austin90
- Network security consulting firms in Dallas85
- Network security consulting firms in Chicago79
- Network security consulting firms in Miami77
- Network security consulting firms in San Francisco64
- Network security consulting firms in Tampa63
- Network security consulting firms in Los Angeles56
- Network security consulting firms in Denver53
- Network security consulting firms in San Diego51
- Network security consulting firms in Charlotte50
- Network security consulting firms in Arlington49
- Network security consulting firms in Columbia46
- Network security consulting firms in Boston44
- Network security consulting firms in San Antonio41
- Network security consulting firms in Phoenix40
- Network security consulting firms in Seattle39
- Network security consulting firms in Las Vegas38
- Network security consulting firms in Orlando38
- Network security consulting firms in Alexandria35
- Network security consulting firms in Reston32
- Network security consulting firms in Baltimore31
- Network security consulting firms in Mclean31
- Network security consulting firms in Minneapolis31
- Network security consulting firms in Raleigh31
- Network security consulting firms in Fairfax28
- Network security consulting firms in Huntsville27
- Network security consulting firms in San Jose27
- Network security consulting firms in Sheridan27
- Network security consulting firms in Ashburn26
- Network security consulting firms in Columbus26
- Network security consulting firms in Scottsdale26
- Network security consulting firms in Wilmington25
Frequently asked
How many network security consulting firms are there based in the United States?
RevenueBase identified 5,469 network security consulting firms headquartered in the 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?
Symantec, headquartered in San Jose, tops this list with the largest team on record.
Which city has the most network security consulting firms?
New York leads with 134 headquartered companies, followed by Houston (102) and Washington (98).
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 24,030 verified decision-maker contacts tracked across these 5,469 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 5, 2026.
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Network security consulting firms by geography
- Network security consulting firms based in the United Kingdom
- Network security consulting firms based in France
- Network security consulting firms based in Canada
- Network security consulting firms based in Brazil
- Network security consulting firms based in Australia
- Network security consulting firms based in Germany
- Network security consulting firms based in the Netherlands
- Network security consulting firms based in Spain
- Network security consulting firms based in Italy
- Network security consulting firms based in Mexico
- Network security consulting firms based in South Africa
- Network security consulting firms based in Switzerland
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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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