Company lists · Data refreshed September 2026

Top 25 Federal consulting firms based in Fairfax, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 64 companies tracked

RevenueBase identified 64 federal consulting firms headquartered in Fairfax, United States as of September 2026 and tracks 2,824 professional contacts across them, including 551 with verified work emails. Across the United States, Washington is the largest hub for this category (361 companies); Fairfax has 64.

This list covers federal 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 14, 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 14, 2026 86% judged on-target in blind review

64Companies

2,824Contacts tracked

551Verified emails

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The 25 largest federal consulting firms based in Fairfax, United States

Ranked by team size

Top 25 of 64 federal consulting firms based in Fairfax, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to federal 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Salient Crgt	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	1,001-5,000	639 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 14, 2026
2	ALL Native Group, The Federal Services Division Of Ho-Chunk INC	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	501-1,000	437 contacts →
	Partial evidence “For more than 20 years, All Native Group has delivered specialized expertise to federal agencies across civilian, defense, intelligence, and international missions.” Source: RevenueBase Database · checked Sep 14, 2026
3	Integrityone Partners	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	n/a	205 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 14, 2026
4	Nationwide IT Services, INC	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	201-500	190 contacts →
	Indirect 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 14, 2026
5	Kforce Government Solutions, Inc. KGS	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	501-1,000	140 contacts →
	Indirect 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 14, 2026
6	Mcking Consulting	Strong evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	51-200	118 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 14, 2026
7	Onpoint	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	11-50	104 contacts →
	Partial 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 14, 2026
8	AOC Solutions	Strong evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	51-200	98 contacts →
	Strong evidence “AOC Solutions, Inc.(AOC) is a Service-Disabled, Veteran-Owned Small Business business that provides accounting, audit, and consulting services to Federal agencies.” Source: RevenueBase Database · checked Sep 14, 2026
9	Metronome	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	51-200	92 contacts →
	Partial 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 14, 2026
10	Inalab	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	51-200	91 contacts →
	Partial 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 14, 2026
11	Inforeliance	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	201-500	70 contacts →
	Indirect evidence “When organizations need to be on time-and on budget-they call InfoReliance.” Source: RevenueBase Database · checked Sep 14, 2026
12	Ventus Solutions VES	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	51-200	66 contacts →
	Partial 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 14, 2026
13	The Rehancement Group, INC	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	51-200	62 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 14, 2026
14	ERPI	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	201-500	57 contacts →
	Partial evidence “Enterprise Resource Performance Inc.(ERPi) is a professional services rm that delivers strategic, advisory, technological, and implementation support services to Federal Agencies.” Source: RevenueBase Database · checked Sep 14, 2026
15	Burdeshaw Associates LLC	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	51-200	39 contacts →
	Indirect evidence “Burdeshaw Associates, LLC has nearly 40 years of unparalleled leadership and "real world" experience from retired flag officers and SES level executives in the areas of Domestic…” Source: RevenueBase Database · checked Sep 14, 2026
16	Comter Systems INC	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	11-50	29 contacts →
	Partial evidence “Comter Systems is a transformational IT services company which supports federal agencies, commercial enterprises, and non-profit organizations.” Source: RevenueBase Database · checked Sep 14, 2026
17	Grey Street Consulting, LLC	Strong evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	11-50	17 contacts →
	Strong evidence “Grey Street Consulting, LLC (GSC), headquartered in Fairfax Station, VA is an economically disadvantaged woman-owned small business, federal contracting firm that received…” Source: RevenueBase Database · checked Sep 14, 2026
18	Pivot Path Solutions	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	11-50	16 contacts →
	Partial evidence “Pivot Path Solutions is a small business consulting firm focused on helping organizations improve operations and program performance.” Source: RevenueBase Database · checked Sep 14, 2026
19	Advanced Systems, Inc. ASI	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	1-10	13 contacts →
	Partial evidence “Advanced Systems Incorporated (ASI) offers planning, analytical, strategic/tactical, management, operations and consultative support, to Federal, commercial and non-profit…” Source: RevenueBase Database · checked Sep 14, 2026
20	Gunnison Consulting Group, INC	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	201-500	11 contacts →
	Partial evidence “In 1994 Gunnison Consulting Group began serving the greater Washington, D.C.” Source: RevenueBase Database · checked Sep 14, 2026
21	Technical Analysis Center	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	51-200	11 contacts →
	Indirect evidence “Technical Analysis Center (TAC) was founded with a vision of providing management support to Government entities in a wide-range of functional areas.” Source: RevenueBase Database · checked Sep 14, 2026
22	Watts Group, INC	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	11-50	10 contacts →
	Indirect evidence “Founded in 2005, Watts Group has an experienced and responsive team of accounting and systems implementation experts.” Source: RevenueBase Database · checked Sep 14, 2026
23	Advance Digital Systems	Strong evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	51-200	9 contacts →
	Strong evidence “Advance Digital Systems (ADS) is a leading provider of information technology and consulting services for federal and commercial clients.” Source: RevenueBase Database · checked Sep 14, 2026
24	Vanguard Management Solutions, INC	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	11-50	8 contacts →
	Indirect evidence “Vanguard Management Solutions (VMGTS) is a minority-owned cybersecurity and technology firm serving government and commercial organizations.” Source: RevenueBase Database · checked Sep 14, 2026
25	BG Consulting Services	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 14, 2026	11-50	8 contacts →
	Partial evidence “BG Consulting Services, LLC, is a small Veteran-owned, woman-owned, consulting firm primarily focused on the business of servicing healthcare organizations and agencies.” Source: RevenueBase Database · checked Sep 14, 2026

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: federal 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 federal consulting firms.
Partial evidence: Its own public description names part of federal consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name federal 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 25 of 64 federal consulting firms based in Fairfax, United States

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Federal consulting firms based in Fairfax, United States at a glance

As of Sep 14, 2026

19.5%Verified-email coverage

44.1Average contacts per company

11-50Median size (employees)

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 64 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 federal 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 “federal 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 federal 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 federal 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, 551 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 14, 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.

Federal 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 federal 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 federal consulting firms are there based in Fairfax, United States?

RevenueBase identified 64 federal 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?

Salient Crgt, headquartered in Fairfax, tops this list with the largest team on record.

Which city in the United States has the most federal consulting firms?

Washington leads the United States with 361 headquartered companies, followed by Arlington (136) and Atlanta (109). Fairfax has 64.

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 551 verified decision-maker contacts tracked across these 64 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 14, 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.