Company lists · Data refreshed September 2026

Top 25 Enterprise security consulting companies based in the United States

Name: Enterprise security consulting companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 6,689 companies tracked

RevenueBase identified 6,689 company matches for enterprise security consulting companies associated with the United States as of September 2026 and tracks 100,783 professional contacts across them, including 32,783 with verified work emails. New York is the largest hub.

This list covers company matches for enterprise security consulting companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

6,689Companies

100,783Contacts tracked

32,783Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest enterprise security consulting companies based in the United States

Ranked by team size

Top 25 of 6,689 company matches for enterprise security consulting companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Symantec	Exact match	San Jose, CA, United StatesHQ recorded Sep 28, 2026	10001+	11,169 contacts →
	Exact match “Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Convergint	Exact match	Hoffman Estates, IL, United StatesHQ recorded Sep 28, 2026	10001+	5,707 contacts →
	Exact match “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,222 contacts →
	Exact match “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Paragon Systems INC	Exact match	Herndon, VA, United StatesHQ recorded Sep 28, 2026	10001+	1,949 contacts →
	Exact match “Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Guardsmark	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	10001+	1,375 contacts →
	Exact match “Guardsmark, LLC provides security services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Guidepoint Security	Exact match	Reston, VA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,232 contacts →
	Exact match “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Brosnan Risk Consultants	Exact match	Pearl River, NY, United StatesHQ recorded Sep 28, 2026	5,001-10,000	1,050 contacts →
	Exact match “Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Synoptek	Exact match	Costa Mesa, CA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,037 contacts →
	Exact match “Synoptek is a leading global managed services provider and technology consulting firm that delivers transformative business results.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Trustwave, A Levelblue Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	501-1,000	874 contacts →
	Exact match “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Cyderes	Exact match	Kansas City, MO, United StatesHQ recorded Sep 28, 2026	1,001-5,000	844 contacts →
	Exact match “Today’s threatscape is relentless.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Buchanan Technologies	Exact match	Grapevine, TX, United StatesHQ recorded Sep 28, 2026	501-1,000	818 contacts →
	Exact match “As a leading IT consulting and outsourcing services firm, Buchanan Technologies helps organizations across North America turn their business technology into a powerful competitive…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	RED River	Exact match	Chantilly, VA, United StatesHQ recorded Sep 28, 2026	501-1,000	709 contacts →
	Exact match “Red River brings together the ideal combination of talent, partners and products to disrupt the status quo in technology and drive success for business and government in ways…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Network Intelligence	Exact match	Plano, TX, United StatesHQ recorded Sep 28, 2026	501-1,000	641 contacts →
	Exact match “At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Telos Corporation	Exact match	Ashburn, VA, United StatesHQ recorded Sep 28, 2026	501-1,000	629 contacts →
	Exact match “Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	MSA Security	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	10001+	571 contacts →
	Exact match “Allied Universal Enhanced Protection Services delivers unrivaled threat mitigation expertise for government and business entities worldwide.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Security Alliance	Exact match	Miami, FL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	553 contacts →
	Exact match “Security Alliance is a highly experienced provider of security solutions for private and business environments.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Ultraviolet Cyber	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	501-1,000	523 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Aujas Cybersecurity	Exact match	Cupertino, CA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	473 contacts →
	Exact match “At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Xcelerate Solutions	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	447 contacts →
	Exact match “At Xcelerate, safeguarding the nation isn’t just a mission-it’s our obsession.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	United Security, Inc. USI	Exact match	Red Bank, NJ, United StatesHQ recorded Sep 28, 2026	1,001-5,000	416 contacts →
	Exact match “United Security Inc.(USI) provides personalized security solutions enhanced by advanced technology and cyber services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Appgate	Exact match	Coral Gables, FL, United StatesHQ recorded Sep 28, 2026	501-1,000	381 contacts →
	Exact match “AppGate secures and protects an organization's most valuable assets with its high performance Zero Trust Network Access (ZTNA) solution and Cyber Advisory Services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	IBN Technologies	Exact match	Miami, FL, United StatesHQ recorded Sep 28, 2026	51-200	365 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	IANS	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	51-200	327 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	CTI	Exact match	Timonium, MD, United StatesHQ recorded Sep 28, 2026	n/a	323 contacts →
	Exact match “Continental Technologies Inc (CTI) configures, distributes, designs and maintains technology solutions for customers around the globe and remains both privately-held and locally…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Intelligent Technical Solutions	Exact match	Las Vegas, NV, United StatesHQ recorded Sep 28, 2026	201-500	317 contacts →
	Exact match “Intelligent Technical Solutions is your trusted business partner for all your Cybersecurity, Managed and Co-managed IT support, Risk & Compliance, Data Analytics, and Consulting…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “enterprise security consulting companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 6,689 enterprise security consulting companies based in the United States

See the full list, filter by size, metro and specialty, and access 32,783 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Enterprise security consulting companies based in the United States at a glance

As of Sep 28, 2026

32.5%Verified-email coverage

15.1Average contacts per company

1-10Median size (employees)

3.4%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

3,922

11-50

1,973

51-200

560

201-500

135

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 6,689 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with the United States whose business descriptions match “enterprise security consulting companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 32,783 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Enterprise security consulting companies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “enterprise security consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many enterprise security consulting companies are there based in the United States?

RevenueBase identified 6,689 company matches for enterprise security consulting companies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Symantec tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most enterprise security consulting companies?

New York leads with 225 company records, followed by Washington (129) and Houston (126).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 32,783 professional contacts with verified work emails tracked across these 6,689 companies; direct dials are available where recorded.

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.

Ready to reach these companies? Verified emails and direct dials for all 6,689 enterprise security consulting companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Enterprise security consulting companies by geography

Browse the directory

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.