Company lists · Data refreshed September 2026
Top 24 Security transformation consulting firms based in New York, United States
RevenueBase identified 153 security transformation consulting firms headquartered in New York, United States as of September 2026 and tracks 1,976 professional contacts across them, including 659 with verified work emails. Across the United States, New York is the largest hub for this category.
This list covers security transformation 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 29, 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 security transformation 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 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 219 contacts → | ||||
Partial evidence “Kraft Kennedy is a multidisciplinary technology and management consulting firm.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 163 contacts → | ||||
Indirect evidence “Harbor IT helps organizations secure, operate, and scale through integrated IT, cybersecurity, AI, and cloud services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 159 contacts → | ||||
Partial evidence “Silverseal is a comprehensive security solutions firm with worldwide affiliations that can provide global security services in a highly professional manner.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 76 contacts → | ||||
Indirect evidence “NopalCyber makes cybersecurity manageable, affordable, reliable, and powerful for companies that need to be resilient and compliant.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 70 contacts → | ||||
Partial evidence “At GLOBAL OPS, we specialize in creating and implementing tailored security solutions that cater to the unique needs of our diverse clientele.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 69 contacts → | ||||
Partial evidence “HubSpire is an innovative team of management consultants, app developers, designers and digital transformation experts.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 65 contacts → | ||||
Indirect evidence “RevelSI is a global cybersecurity, AI, software, and infrastructure services organization.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 55 contacts → | ||||
Partial evidence “Port53 Technologies is The Global Leader in Cisco-Based Managed Security Operations, helping organizations modernize and secure their digital environments through advanced…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 38 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 28 contacts → | ||||
Partial evidence “Molaprise is a consulting firm and technology solutions provider focused on emerging technologies to help organizations transform their businesses, and predict and solve problems.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 28 contacts → | ||||
Indirect evidence “CipherTechs is now part of CyberMaxx, a tech-enabled cybersecurity service provider.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 22 contacts → | ||||
Indirect evidence “TAG serves the cybersecurity community, primarily with enterprise, vendors, and venture capital.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 21 contacts → | ||||
Indirect evidence “Gotham Digital Science (GDS) was acquired in 2016 by Stroz Friedberg, an Aon company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 19 contacts → | ||||
Indirect 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 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 14 contacts → | ||||
Partial evidence “SphereNY is made up of seasoned professionals who have a passion for the Construction Industry and Security Awareness programs for all sectors.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 contacts → | ||||
Partial evidence “ICMG delivers strategic security and risk management solutions grounded in cross-sector collaboration and a deep understanding of global security challenges.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 10 contacts → | ||||
Indirect evidence “Technology is no longer a set of tools for speed and convenience, but the foundation of a company's success.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Indirect evidence “Techgardens is a systems integrator founded in 2009 and based in New York.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 9 contacts → | ||||
Partial evidence “Core 82 is an IT consulting firm combining industry expertise and integrated solutions with military discipline and precision to assist companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 8 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 7 contacts → | ||||
Partial evidence “MITG exists because most businesses don't need another security vendor.” Source: RevenueBase Database · checked Sep 29, 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: security transformation 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 security transformation consulting firms.
- Partial evidence
- Its own public description names part of security transformation consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security transformation 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 153 security transformation consulting firms based in New York, United States
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Security transformation consulting firms based in New York, United States at a glance
As of Sep 29, 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 153 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 transformation 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 “security transformation 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 security transformation 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 security transformation 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, 659 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 29, 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 transformation consulting firms by metro in the United States
- Security transformation consulting firms in Washington116
- Security transformation consulting firms in Atlanta112
- Security transformation consulting firms in Dallas98
- Security transformation consulting firms in Austin96
- Security transformation consulting firms in Houston93
- Security transformation consulting firms in Chicago72
- Security transformation consulting firms in San Francisco71
- Security transformation consulting firms in Miami70
- Security transformation consulting firms in Los Angeles64
- Security transformation consulting firms in Tampa61
- Security transformation consulting firms in San Diego59
- Security transformation consulting firms in Arlington57
- Security transformation consulting firms in Alexandria54
- Security transformation consulting firms in Boston52
- Security transformation consulting firms in Seattle50
- Security transformation consulting firms in Denver48
- Security transformation consulting firms in Charlotte41
- Security transformation consulting firms in Columbia38
- Security transformation consulting firms in Mclean38
- Security transformation consulting firms in San Antonio38
- Security transformation consulting firms in Reston37
- Security transformation consulting firms in Orlando33
- Security transformation consulting firms in Ashburn32
- Security transformation consulting firms in Las Vegas31
- Security transformation consulting firms in Baltimore30
- Security transformation consulting firms in Phoenix30
- Security transformation consulting firms in Raleigh30
- Security transformation consulting firms in Columbus28
- Security transformation consulting firms in Minneapolis28
- Security transformation consulting firms in Scottsdale28
- Security transformation consulting firms in Fairfax26
- Security transformation consulting firms in Huntsville26
- Security transformation consulting firms in Herndon25
- Security transformation consulting firms in Plano25
- Security transformation consulting firms in San Jose25
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 security transformation 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 security transformation consulting firms are there based in New York, United States?
RevenueBase identified 153 security transformation 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 security transformation consulting firms?
New York leads the United States with 168 headquartered companies, followed by Washington (116) and Atlanta (112).
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 659 verified decision-maker contacts tracked across these 153 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 29, 2026.
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Security transformation consulting firms by geography
- Security transformation consulting firms based in Adelaide, Australia
- Security transformation consulting firms based in Brisbane, Australia
- Security transformation consulting firms based in Canberra, Australia
- Security transformation consulting firms based in Melbourne, Australia
- Security transformation consulting firms based in Perth, Australia
- Security transformation consulting firms based in Sydney, Australia
- Security transformation consulting firms based in Vienna, Austria
- Security transformation consulting firms based in Belo Horizonte, Brazil
- Security transformation consulting firms based in Brasilia, Brazil
- Security transformation consulting firms based in Curitiba, Brazil
- Security transformation consulting firms based in Rio De Janeiro, Brazil
- Security transformation consulting firms based in Sao Paulo, Brazil
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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