Company lists · Data refreshed September 2026

Top 25 Federal contracting advisors based in the United States

Name: Federal contracting advisors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 2,274 companies tracked

RevenueBase identified 2,274 federal contracting advisors headquartered in the United States as of September 2026 and tracks 24,953 professional contacts across them, including 6,937 with verified work emails. Washington is the largest hub.

This list covers federal contracting advisors headquartered in the 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 20, 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 20, 2026 86% judged on-target in blind review

2,274Companies

24,953Contacts tracked

6,937Verified emails

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

The 25 largest federal contracting advisors based in the United States

Ranked by team size

Top 25 of 2,274 federal contracting advisors based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to federal contracting advisors: 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	Gov-Con Solutions	Indirect evidence	Broomfield, CO, United StatesHQ checked Sep 20, 2026	n/a	1,000 contacts →
	Indirect evidence “Gov-Con provides financial and accounting solutions for government contractors such as SBIR Award Winners, DoD contractors, Prime Contractors and Subcontractors.” Source: RevenueBase Database · checked Sep 20, 2026
2	Ads, INC	Indirect evidence	Virginia Beach, VA, United StatesHQ checked Sep 20, 2026	201-500	641 contacts →
	Indirect evidence “ADS provides innovative and cost-effective solutions for our customers’ equipment, procurement, and logistics challenges.” Source: RevenueBase Database · checked Sep 20, 2026
3	GSA National	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 20, 2026	201-500	558 contacts →
	Indirect evidence “GSA National has been helping government contractors ensure compliance and streamline costs since 1991.” Source: RevenueBase Database · checked Sep 20, 2026
4	Solomonedwards	Partial evidence	Wayne, PA, United StatesHQ checked Sep 20, 2026	1,001-5,000	557 contacts →
	Partial evidence “For more than 25 years, SolomonEdwards has empowered organizations to tackle common and complex business challenges through strategic advisory, technical advocacy, and hands-on…” Source: RevenueBase Database · checked Sep 20, 2026
5	DLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	201-500	546 contacts →
	Indirect evidence “DLC is an award-winning industry leader in Finance, Accounting, Program Management & Process Improvement Consulting.” Source: RevenueBase Database · checked Sep 20, 2026
6	JPI	Indirect evidence	Blacksburg, VA, United StatesHQ checked Sep 20, 2026	51-200	373 contacts →
	Indirect evidence “JPI is an Information Technology and Program Management Consulting Firm.” Source: RevenueBase Database · checked Sep 20, 2026
7	Deep Water Point & Associates	Indirect evidence	Annapolis, MD, United StatesHQ checked Sep 20, 2026	201-500	350 contacts →
	Indirect evidence “Deep Water Point & Associates is composed of industry veterans and government experts who dedicate their expertise to maximize our clients’ competitive edge.” Source: RevenueBase Database · checked Sep 20, 2026
8	FCI Federal	Partial evidence	Arlington, VA, United StatesHQ checked Sep 20, 2026	1,001-5,000	349 contacts →
	Partial evidence “FCi Federal is now part of PAE.” Source: RevenueBase Database · checked Sep 20, 2026
9	Peerless Technologies Corporation	Partial evidence	Fairborn, OH, United StatesHQ checked Sep 20, 2026	201-500	326 contacts →
	Partial evidence “Peerless Technologies Corporation is a nationally recognized, award-winning, and reputable business serving federal government clients at more than 25 locations nationwide.” Source: RevenueBase Database · checked Sep 20, 2026
10	Iquasar LLC	Partial evidence	Sterling, VA, United StatesHQ checked Sep 20, 2026	201-500	312 contacts →
	Partial evidence “Based in Sterling, Virginia, iQuasar LLC, with over 20 years of experience, we help small and medium businesses grow in the federal marketplace through Proposal Development…” Source: RevenueBase Database · checked Sep 20, 2026
11	Quantech Services INC	Indirect evidence	Lexington, MA, United StatesHQ checked Sep 20, 2026	201-500	299 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
12	ISN	Partial evidence	Bethesda, MD, United StatesHQ checked Sep 20, 2026	201-500	283 contacts →
	Partial evidence “Information Systems and Networks Corporation- Headquartered in Bethesda, Maryland, ISN Corporation is a nationwide provider of specialized professional services to Federal…” Source: RevenueBase Database · checked Sep 20, 2026
13	TCG	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	263 contacts →
	Indirect evidence “Traditional we are not.” Source: RevenueBase Database · checked Sep 20, 2026
14	Conti Federal Services	Partial evidence	Orlando, FL, United StatesHQ checked Sep 20, 2026	201-500	228 contacts →
	Partial evidence “For nearly 40 years, Conti Federal Services has delivered on-time and on-budget performance for some of the US Federal Government’s most challenging projects by operating…” Source: RevenueBase Database · checked Sep 20, 2026
15	ASI Government	Partial evidence	Herndon, VA, United StatesHQ checked Sep 20, 2026	51-200	192 contacts →
	Partial evidence “For nearly two decades, ASI Government has served as a trusted advisor to government leaders seeking to improve mission performance, enhance organizational effectiveness and drive…” Source: RevenueBase Database · checked Sep 20, 2026
16	Mcallister & Quinn	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	170 contacts →
	Partial evidence “McAllister & Quinn is a Washington, DC consulting firm that provides a comprehensive range of services to a diverse group of clients with issues before the federal government.” Source: RevenueBase Database · checked Sep 20, 2026
17	Sprezzatura	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 20, 2026	51-200	166 contacts →
	Indirect evidence “Sprez·za·tu·ra (sprāt-tsä-ˈtü-rä) n.” Source: RevenueBase Database · checked Sep 20, 2026
18	ACE Info Solutions LLC	Partial evidence	Reston, VA, United StatesHQ checked Sep 20, 2026	501-1,000	146 contacts →
	Partial evidence “Ace Info Solutions (AceInfo), a Dovel company, is a leading Federal contractor with a focused vision: empower our clients, challenge our employees, and grow our business.” Source: RevenueBase Database · checked Sep 20, 2026
19	Herren Associates	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	142 contacts →
	Indirect evidence “Here at Herren, our goals are to drive efficiency and maximize the value of every dollar our clients spend.” Source: RevenueBase Database · checked Sep 20, 2026
20	St. Michael's INC	Indirect evidence	Woodbridge, VA, United StatesHQ checked Sep 20, 2026	51-200	139 contacts →
	Indirect evidence “St.” Source: RevenueBase Database · checked Sep 20, 2026
21	Arservices	Indirect evidence	Falls Church, VA, United StatesHQ checked Sep 20, 2026	201-500	138 contacts →
	Indirect evidence “ARServices is the management, professional and technology consulting services provider of choice by government agencies that demand agility, reliability, and sustained quality…” Source: RevenueBase Database · checked Sep 20, 2026
22	Anser Advisory	Indirect evidence	Santa Ana, CA, United StatesHQ checked Sep 20, 2026	501-1,000	138 contacts →
	Indirect evidence “We’re strategic thinkers and complex problem solvers.” Source: RevenueBase Database · checked Sep 20, 2026
23	UVG	Indirect evidence	Columbus, United StatesHQ checked Sep 20, 2026	n/a	135 contacts →
	Indirect evidence “Early stage technology and innovation consultancy.” Source: RevenueBase Database · checked Sep 20, 2026
24	Arthur Grand Technologies	Partial evidence	Ashburn, VA, United StatesHQ checked Sep 20, 2026	51-200	134 contacts →
	Partial evidence “Arthur Grand Technologies an SBA certified 8(a) firm offers a broad range of Technology and Business Consulting services to federal and commercial customers.” Source: RevenueBase Database · checked Sep 20, 2026
25	MO	Indirect evidence	Scottsdale, AZ, United StatesHQ checked Sep 20, 2026	11-50	124 contacts →
	Indirect evidence “MO helps government leaders achieve their mission by designing intuitive and sustainable experiences that build trust, improve satisfaction, and reduce burden.” Source: RevenueBase Database · checked Sep 20, 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 contracting advisors. 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 contracting advisors.
Partial evidence: Its own public description names part of federal contracting advisors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name federal contracting advisors. 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 2,274 federal contracting advisors based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 6,937 reachable decision-makers.

Free signup · no credit card

View the full list →

Federal contracting advisors based in the United States at a glance

As of Sep 20, 2026

27.8%Verified-email coverage

11.0Average contacts per company

1-10Median size (employees)

8.4%Largest-city concentration · Washington

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

1,558

11-50

501

51-200

167

201-500

501-1,000

1,001-5,000

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 2,274 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 contracting advisors, 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 the United States whose own description of what they do matches “federal contracting advisors”. 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 contracting advisors), 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 contracting advisors, and records with no verified work email. Companies headquartered outside United States 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, 6,937 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 20, 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 contracting advisors by metro

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 contracting advisors, 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 contracting advisors are there based in the United States?

RevenueBase identified 2,274 federal contracting advisors headquartered in the 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?

Gov-Con Solutions, headquartered in Broomfield, tops this list with the largest team on record.

Which city has the most federal contracting advisors?

Washington leads with 192 headquartered companies, followed by Arlington (63) and Alexandria (51).

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 6,937 verified decision-maker contacts tracked across these 2,274 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 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 2,274 federal contracting advisors based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Federal contracting advisors 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 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.