Company lists · Data refreshed September 2026

Top 25 Government IT consulting firms based in Fairfax, United States

RevenueBase identified 119 government IT consulting firms headquartered in Fairfax, United States as of September 2026 and tracks 8,785 professional contacts across them, including 3,224 with verified work emails. Washington is the largest hub.

This list covers government IT consulting firms headquartered in Fairfax, 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 21, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
119Companies
8,785Contacts tracked
3,224Verified emails
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The 25 largest government IT consulting firms based in Fairfax, United States

Ranked by team size
Top 25 of 119 government IT consulting firms based in Fairfax, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to government IT consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceFairfax, VA, United StatesHQ checked Sep 21, 20261,001-5,0001,568 contacts →

Indirect evidence

“ASM Research, an Accenture Federal Services Company, is an information solutions integrator and a leading provider of innovative technology solutions and advanced analytical…”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceFairfax, VA, United StatesHQ checked Sep 21, 20261,001-5,000639 contacts →

Indirect evidence

“For over 20 years, Salient CRGT has upheld its mission to "empower our diverse, hard-working team to deliver high-value solutions that make positive impacts on missions and…”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceFairfax, VA, United StatesHQ checked Sep 21, 2026n/a205 contacts →

Indirect evidence

“INTEGRITYOne Partners is a business and technology services company delivering mission-critical results to leaders working on our nation’s top priorities.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceFairfax, VA, United StatesHQ checked Sep 21, 2026201-500197 contacts →

Indirect evidence

“FTI is dedicated to empowering customers with mission-critical technology solutions, helping solve their most complex challenges.”

Source: RevenueBase Database · checked Sep 21, 2026
5Partial evidenceFairfax, VA, United StatesHQ checked Sep 21, 2026201-500190 contacts →

Partial evidence

“Nationwide IT Services, Inc.(NIS) is designated 8(a) by the SBA, and a CVE verified Service Disabled Veteran Owned Small Business (SDVOSB) Information Technology (IT) and…”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceFairfax, VA, United StatesHQ checked Sep 21, 202651-200181 contacts →

Indirect evidence

“In a shared vision sparked something exceptional.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceFairfax, VA, United StatesHQ checked Sep 21, 2026201-500168 contacts →

Indirect evidence

“Concept Plus is a technology services company offering deep technical expertise, an experienced team, and a dedication to maximizing business productivity.”

Source: RevenueBase Database · checked Sep 21, 2026
8Strong evidenceFairfax, VA, United StatesHQ checked Sep 21, 2026201-500155 contacts →

Strong evidence

“Universal Consulting Services, LLC (UCS) is a rapidly growing government contractor providing expertise in Enterprise IT Solutions and Health Services.”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceFairfax, VA, United StatesHQ checked Sep 21, 2026501-1,000140 contacts →

Partial evidence

“Kforce Government Solutions, Inc.(KGS) is a provider of financial management, transformation management, and technology solutions to the government.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceFairfax, VA, United StatesHQ checked Sep 21, 2026201-500140 contacts →

Indirect evidence

“Empower AI has acquired Highlight Technologies.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceFairfax, VA, United StatesHQ checked Sep 21, 202651-200140 contacts →

Indirect evidence

“ICS is a strategically diversified technology solutions company operating in different markets serving both Federal and Commercial clients with innovations that span…”

Source: RevenueBase Database · checked Sep 21, 2026
12Strong evidenceFairfax, VA, United StatesHQ checked Sep 21, 202651-200118 contacts →

Strong evidence

“McKing Consulting Corporation provides a variety of general and specialized management consulting services to the federal government, state agencies, nonprofits, and public and…”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceFairfax, VA, United StatesHQ checked Sep 21, 2026201-500117 contacts →

Indirect evidence

“Founded in 2009 and based out of the Washington, D.C.”

Source: RevenueBase Database · checked Sep 21, 2026
14Strong evidenceFairfax, VA, United StatesHQ checked Sep 21, 202651-200108 contacts →

Strong evidence

“Technatomy is a dynamic, highly focused, service-disabled, veteran-owned, small business (SDVOSB) government IT contractor positioned to meet the digital transformation needs of…”

Source: RevenueBase Database · checked Sep 21, 2026
15Strong evidenceFairfax, VA, United StatesHQ checked Sep 21, 202611-50104 contacts →

Strong evidence

“OnPoint is a technology and consulting services partner helping government leaders secure their systems, effectively operate, and deliver critical services in today’s increasingly…”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceFairfax, VA, United StatesHQ checked Sep 21, 202651-20092 contacts →

Indirect evidence

“Metronome partners with federal customers to lead them on the Digital Transformation journey.and we will get them there lightning-fast.”

Source: RevenueBase Database · checked Sep 21, 2026
17Strong evidenceFairfax, VA, United StatesHQ checked Sep 21, 202651-20091 contacts →

Strong evidence

“Inalab is a leading IT solutions and strategy consulting firm focused on providing solutions that transform enterprise operations in the government and commercial sectors by…”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceFairfax, VA, United StatesHQ checked Sep 21, 202651-20081 contacts →

Indirect evidence

“JCS Solutions is a premier cybersecurity and technology solutions provider.”

Source: RevenueBase Database · checked Sep 21, 2026
19Partial evidenceFairfax, VA, United StatesHQ checked Sep 21, 202651-20073 contacts →

Partial evidence

“ThinkTek LLC, a Certified SBA 8(a) Service-Disabled Veteran-Owned Small Business (SDVOSB), and ISO 9001:2015 Certified company, is a trusted provider of advanced analytics, IT…”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceFairfax, VA, United StatesHQ checked Sep 21, 2026201-50070 contacts →

Indirect evidence

“When organizations need to be on time-and on budget-they call InfoReliance.”

Source: RevenueBase Database · checked Sep 21, 2026
21Partial evidenceFairfax, VA, United StatesHQ checked Sep 21, 202651-20069 contacts →

Partial evidence

“Founded in 2002, Accelera Solutions is an award-winning digital transformation and IT modernization leader.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceFairfax, VA, United StatesHQ checked Sep 21, 202651-20069 contacts →

Indirect evidence

“Information Management Group, Inc.(IMG) was founded in 1987.”

Source: RevenueBase Database · checked Sep 21, 2026
23Strong evidenceFairfax, VA, United StatesHQ checked Sep 21, 202651-20066 contacts →

Strong evidence

“We deliver cutting-edge solutions to government and commercial clients, specializing in technology innovation acceleration, business consulting, professional engineering, program…”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceFairfax, VA, United StatesHQ checked Sep 21, 202651-20065 contacts →

Indirect evidence

“We RECRUIT, We TRAIN, and We STAFF Transforming Challenges into Opportunities!”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceFairfax, VA, United StatesHQ checked Sep 21, 202651-20062 contacts →

Indirect evidence

“Established in 2007 and headquartered in Fairfax, VA, The Rehancement Group, Inc.(TRG) embodies a set of core values; Passion, Change, Integrity, Respect, Client Success…”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 119 government IT consulting firms based in Fairfax, United States

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Government IT consulting firms based in Fairfax, United States at a glance

As of Sep 21, 2026
36.7%Verified-email coverage
73.8Average contacts per company
11-50Median size (employees)
301.7%Largest-city concentration · Washington
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
41
11-50
35
51-200
25
201-500
10
501-1,000
1
1,001-5,000
6

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 119 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 government IT 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 Fairfax, United States whose own description of what they do matches “government IT 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 government IT 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 government IT consulting firms, and records with no verified work email. Companies headquartered outside Fairfax 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, 3,224 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 21, 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.

Government IT consulting firms by metro in the United States

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 government IT 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 government IT consulting firms are there based in Fairfax, United States?

RevenueBase identified 119 government IT consulting firms headquartered in Fairfax, 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?

ASM Research, headquartered in Fairfax, tops this list with the largest team on record.

Which city has the most government IT consulting firms?

Washington leads with 359 headquartered companies, followed by New York (210) and Reston (179).

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 3,224 verified decision-maker contacts tracked across these 119 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 21, 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 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.