Company lists · Data refreshed October 2026

Top 25 Cybersecurity consulting service providers based in Fairfax, United States

Name: Cybersecurity consulting service providers based in Fairfax, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 45 companies tracked

RevenueBase identified 45 company matches for cybersecurity consulting service providers associated with Fairfax, United States as of October 2026 and tracks 672 professional contacts across them, including 197 with verified work emails. Across the United States, New York is the largest hub for this category (302 companies); Fairfax has 45.

This list covers company matches for cybersecurity consulting service providers associated with Fairfax, 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 October 1, 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 Oct 1, 2026 How this list was built

45Companies

672Contacts tracked

197Verified emails

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The 25 largest cybersecurity consulting service providers based in Fairfax, United States

Ranked by team size

Top 25 of 45 company matches for cybersecurity consulting service providers based in Fairfax, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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	Onpoint	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	11-50	104 contacts →
	Exact match “OnPoint is a technology and consulting services partner helping government leaders secure their systems, effectively operate, and deliver critical services in today’s increasingly…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	JCS Solutions LLC	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	51-200	81 contacts →
	Exact match “JCS Solutions is a premier cybersecurity and technology solutions provider.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	True Zero Technologies	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	51-200	53 contacts →
	Exact match “True Zero Technologies ("True Zero") is a seasoned, Veteran-Owned Small Business (VOSB) specializing in comprehensive cybersecurity and consulting services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	PUNCH	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	51-200	49 contacts →
	Exact match “Punch is the leading creative agency for cybersecurity and technology innovators.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	Usmax Corporation	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	51-200	39 contacts →
	Exact match “USmax Corporation is an ISO 9001:2015 registered, ISO registered, ISO 27001:2013 registered, and CMMI-SVC Level 3 appraised Enterprise Information Technology (IT) and Professional…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Total Cyber Solutions	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	1-10	23 contacts →
	Exact match “We provide Vulnerability services including: Vulnerability Assessments Penetration Testing Compliance and Policy Analysis Cybersecurity as a Service (also known as MSP) Cloud…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	Sensei Enterprises	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	11-50	21 contacts →
	Exact match “Sensei Enterprises, Inc.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Senet International	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	11-50	16 contacts →
	Exact match “SeNet International Corporation is a company of information technology consulting professionals committed to helping public and private sector organizations securely operate their…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	Polito, INC	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	11-50	15 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Lp3	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	51-200	14 contacts →
	Exact match “LP3 is a highly experienced cyber and integration company with offices in Fairfax, VA, Syracuse, NY, St.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	Assurit	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	11-50	13 contacts →
	Exact match “CMMC Level 2 \| CAGE 6VE87 \| UEI DL3JL6J1XG98 \| SBA 8(a)\| 8(a) STARS \| HACS SINs \| CMMI-SVC \| ISO 9001 \| ISO 27001 \| ISO \| Assurit, an 8(a) certified and recognized leader in…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	Datalock Consulting Group	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	11-50	9 contacts →
	Exact match “A Cybersecurity Firm Focused on Securing Mission-Critical Systems, Protecting Supply Chains, and Safeguarding Digital Assets Within Federal Agencies, While Ensuring Regulatory…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Elite Systems INC	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	11-50	9 contacts →
	Exact match “Systems Integration, Cloud Migration, Software Development, Network Security, Applications Security, Industrial Cyber Security Quality Assurance, RF Benchmark, Wireless…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Deci Technology	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	11-50	9 contacts →
	Exact match “IT consulting company providing cyber security, analytics and data science services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	Itfrastructure, Inc. D B A Itinfra	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	11-50	8 contacts →
	Exact match “Implementing Zero Trust Architecture to Enhance Security, Productivity, and Data Integrity, while Optimizing for Future-Readiness and Mission Success 8(a) Certified Small Business…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Purplesec	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	11-50	8 contacts →
	Exact match “Committed to Intelligent Risk Defense.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	Capsentinel	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	1-10	6 contacts →
	Exact match “CapSentinel is a Small Business that offers world class Information Technology (IT) Risk, Cybersecurity, and financial management solutions to help commercial and federal…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	Cleared Systems	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	11-50	4 contacts →
	Exact match “Headquartered in Fairfax, VA, Cleared Systems specializes in helping federal contractors and highly regulated organizations meet cybersecurity and compliance requirements under…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	Crosshair Cyber	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	11-50	3 contacts →
	Exact match “Crosshair Cyber was founded by industry veterans who have over 20 years’ experience defending some of the most targeted, critical networks in the world-from banks to key…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	Msnet Solutions, LLC	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	1-10	3 contacts →
	Exact match “MSNET SOLUTIONS is owned and operated by professional IT consultants who know what it takes to design, implement, and support secure networks utilizing the latest technologies…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Prosoft Systems Intl	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	11-50	3 contacts →
	Exact match “A professional services firm focused on helping organizations successfully mitigate threats with Microsoft Security, Compliance, and Identity solutions.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	Waveport Security	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	1-10	2 contacts →
	Exact match “LEADING CYBER SOLUTIONS WavePort Security applies proven tools, professional services, and years of cyber-focused experience to create security strategies that provide unrivaled…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	Sentry Consulting Group	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	1-10	2 contacts →
	Exact match “Sentry Consulting Group is a veteran-owned managed IT and cybersecurity provider serving small businesses in the DC, Maryland, and Virginia corridor.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	Grocyber	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	1-10	2 contacts →
	Exact match “GroCyber brings over 4 decades of cyber security experience supporting large enterprise security programs and growing start-up and turn-around companies.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	Xpect Solutions, INC	Exact match	Fairfax, VA, United StatesHQ recorded Oct 1, 2026	51-200	1 contacts →
	Exact match “If securing your IT systems, network infrastructure, and facilities is foremost on your mind, Xpect Solutions can help.” Recorded in the RevenueBase company graph · Oct 1, 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 “cybersecurity consulting service providers”. 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 45 cybersecurity consulting service providers based in Fairfax, United States

See the full list, filter by size, metro and specialty, and access 197 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity consulting service providers based in Fairfax, United States at a glance

As of Oct 1, 2026

29.3%Verified-email coverage

14.9Average contacts per company

11-50Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Fairfax, so it is reported there. Company counts and contact totals on this page are exact for Fairfax, over 45 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 Fairfax, United States whose business descriptions match “cybersecurity consulting service providers” 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 197 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 October 1, 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.

Cybersecurity consulting service providers by metro in the United States

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 “cybersecurity consulting service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity consulting service providers are there based in Fairfax, United States?

RevenueBase identified 45 company matches for cybersecurity consulting service providers associated with Fairfax, United States as of October 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?

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

Which city in the United States has the most cybersecurity consulting service providers?

New York leads the United States with 302 company records, followed by Houston (181) and Washington (173). Fairfax has 45.

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 197 professional contacts with verified work emails tracked across these 45 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 October 1, 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.