Company lists · Data refreshed September 2026
Top 22 Network security consulting firms based in New York, United States
RevenueBase identified 134 network security consulting firms headquartered in New York, United States as of September 2026 and tracks 1,268 professional contacts across them, including 425 with verified work emails. New York is the largest hub.
This list covers network security 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, 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 22 largest network security consulting firms based in New York, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 219 | ||||
“Kraft Kennedy is a multidisciplinary technology and management consulting firm.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 163 | ||||
“Harbor IT helps organizations secure, operate, and scale through integrated IT, cybersecurity, AI, and cloud services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 76 | ||||
“NopalCyber makes cybersecurity manageable, affordable, reliable, and powerful for companies that need to be resilient and compliant.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 66 | ||||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 55 | ||||
“Port53 Technologies is The Global Leader in Cisco-Based Managed Security Operations, helping organizations modernize and secure their digital environments through advanced…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 38 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 28 | ||||
“CipherTechs is now part of CyberMaxx, a tech-enabled cybersecurity service provider.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | TAG InfosphereIndirect evidence | 22 | |||
“TAG serves the cybersecurity community, primarily with enterprise, vendors, and venture capital.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 21 | ||||
“Gotham Digital Science (GDS) was acquired in 2016 by Stroz Friedberg, an Aon company.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 19 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | Smartit LLCIndirect evidence | 12 | |||
“smartIT provides top-notch, hassle-free, user-friendly, one-ticket resolution, reliable, on-site and remote IT and Infosec services to New York Metro businesses, organizations…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 9 | ||||
“Core 82 is an IT consulting firm combining industry expertise and integrated solutions with military discipline and precision to assist companies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 8 | ||||
“Whether you’re starting up a new business or you’re an established publicly‐traded company, Humble Monkey provides business technology consulting, support, and services to meet…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 8 | ||||
“Sayfer, where people and technology meet to overcome web3 and blockchain challenges.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 8 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | Krantz Secure TechnologiesStrong evidence | 6 | |||
“Krantz Secure Technologies is one of the New York metropolitan area’s oldest and most trusted network and security services integrators.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 6 | ||||
“Decoded Solutions is a dynamic tech company with over 10 years of experience providing custom software solutions to businesses in the United States.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | Reliance Infosystems USAIndirect evidence | 5 | |||
“As our name suggests, our customers rely on us in providing suitable technology inputs to support their business goals.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | Innercircle Technology Advisors INCIndirect evidence | 5 | |||
“InnerCircle Technology Advisors is a New York City based Information Technology firm.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | KopidionPartial evidence | 5 | |||
“Kopidion consists of highly qualified cyber operations and information security professionals.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | Nathanial RandIndirect evidence | 5 | |||
“Nathanial Rand, Inc.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 22 of 134 network security consulting firms based in New York, United States
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Network security consulting firms based in New York, United States at a glance
As of Sep 5, 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 New York, over 134 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 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 New York, 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 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 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, 425 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 in the United States
- 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 New York, United States?
RevenueBase identified 134 network security 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?
Kraft & Kennedy, INC, headquartered in New York, 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 425 verified decision-maker contacts tracked across these 134 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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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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