Company lists · Data refreshed September 2026

Top 25 Government procurement consulting firms based in the United States

RevenueBase identified 1,925 government procurement consulting firms headquartered in the United States as of September 2026 and tracks 16,418 professional contacts across them, including 4,996 with verified work emails. Washington is the largest hub.

This list covers government procurement consulting firms 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 28, 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 28, 2026 86% judged on-target in blind review
1,925Companies
16,418Contacts tracked
4,996Verified emails
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The 25 largest government procurement consulting firms based in the United States

Ranked by team size
Top 25 of 1,925 government procurement consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to government procurement 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
1Partial evidenceVirginia Beach, VA, United StatesHQ checked Sep 28, 2026201-500641 contacts →

Partial evidence

“ADS provides innovative and cost-effective solutions for our customers’ equipment, procurement, and logistics challenges.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceFairfax, VA, United StatesHQ checked Sep 28, 2026201-500558 contacts →

Partial evidence

“GSA National has been helping government contractors ensure compliance and streamline costs since 1991.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceAnnapolis, MD, United StatesHQ checked Sep 28, 2026201-500350 contacts →

Partial 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 28, 2026
4Indirect evidenceCambridge, United StatesHQ checked Sep 28, 2026n/a313 contacts →

Indirect evidence

“ATS – 40 Years: Advancing Projects, Boosting Profits, and Cutting Costs For over 40 years, ATS has partnered with organizations worldwide to deliver outstanding results.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceSterling, VA, United StatesHQ checked Sep 28, 2026201-500312 contacts →

Indirect 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 28, 2026
6Partial evidenceAtlanta, GA, United StatesHQ checked Sep 28, 202651-200267 contacts →

Partial evidence

“NPI is an IT procurement advisory services company that helps enterprises identify and eliminate overspending on IT purchases.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 202651-200263 contacts →

Indirect evidence

“Traditional we are not.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceBoca Raton, FL, United StatesHQ checked Sep 28, 20261,001-5,000260 contacts →

Indirect evidence

“Every transformation starts with innovative ideas.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceIrvine, CA, United StatesHQ checked Sep 28, 2026201-500221 contacts →

Partial evidence

“Interwest specializes in providing professional and consulting services to public agencies across California, Nevada, Colorado, and beyond.”

Source: RevenueBase Database · checked Sep 28, 2026
10Strong evidenceBoca Raton, FL, United StatesHQ checked Sep 28, 202651-200194 contacts →

Strong evidence

“GovSpend provides government procurement data and analytics to organizations buying and selling in the public sector.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceHerndon, VA, United StatesHQ checked Sep 28, 202651-200192 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 28, 2026
12Partial evidenceLatham, NY, United StatesHQ checked Sep 28, 2026501-1,000172 contacts →

Partial evidence

“SOVRA is committed to revolutionizing public procurement with innovative solutions and deep sector expertise.”

Source: RevenueBase Database · checked Sep 28, 2026
13Strong evidenceWashington, DC, United StatesHQ checked Sep 28, 202651-200170 contacts →

Strong 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 28, 2026
14Partial evidenceLatham, NY, United StatesHQ checked Sep 28, 202651-200150 contacts →

Partial evidence

“GovernmentContractsUSA is a leader in government business intelligence, offering a suite of services and solutions to meet the needs of businesses who want to benefit from…”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 202651-200142 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 28, 2026
16Indirect evidenceWoodbridge, VA, United StatesHQ checked Sep 28, 202651-200139 contacts →

Indirect evidence

“St.”

Source: RevenueBase Database · checked Sep 28, 2026
17Strong evidenceFairfax, VA, United StatesHQ checked Sep 28, 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 28, 2026
18Indirect evidenceNationwide, United StatesHQ checked Sep 28, 20261,001-5,000116 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
19Strong evidenceEl Segundo, AL, United StatesHQ checked Sep 28, 202651-200113 contacts →

Strong evidence

“OMNI Consulting Solutions is a veteran-owned small business delivering expert consulting to government and commercial clients.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceCranberry Township, PA, United StatesHQ checked Sep 28, 202651-200112 contacts →

Indirect evidence

“Welcome to Green Cabbage Inc.🥬 Green Cabbage, Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceWashington, DC, United StatesHQ checked Sep 28, 202651-200110 contacts →

Partial evidence

“Who We Are A talented team of experts with years of experience in both government and industry, with a passion for finding solutions and a deep understanding of the institutions…”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceRed Bank, NJ, United StatesHQ checked Sep 28, 202651-200109 contacts →

Indirect evidence

“We Make Your Business Operations Comfortable.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidencePhoenix, AZ, United StatesHQ checked Sep 28, 202651-200103 contacts →

Indirect evidence

“B2Gnow is a national leader in software solutions that promote transparency, accountability, and compliance in public and private contracting.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceCharlottesville, VA, United StatesHQ checked Sep 28, 202651-20090 contacts →

Indirect evidence

“GovSmart helps U.S.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceZionsville, IN, United StatesHQ checked Sep 28, 2026201-50089 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 1,925 government procurement consulting firms based in the United States

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Government procurement consulting firms based in the United States at a glance

As of Sep 28, 2026
30.4%Verified-email coverage
8.5Average contacts per company
1-10Median size (employees)
6.0%Largest-city concentration · Washington
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
1,383
11-50
394
51-200
115
201-500
20
501-1,000
7
1,001-5,000
4
10001+
1

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 1,925 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 procurement 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 the United States whose own description of what they do matches “government procurement 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 procurement 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 procurement consulting firms, 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, 4,996 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 28, 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.

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 procurement 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 procurement consulting firms are there based in the United States?

RevenueBase identified 1,925 government procurement consulting firms 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?

Ads, INC, headquartered in Virginia Beach, tops this list with the largest team on record.

Which city has the most government procurement consulting firms?

Washington leads with 116 headquartered companies, followed by Houston (49) and Atlanta (40).

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 4,996 verified decision-maker contacts tracked across these 1,925 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 28, 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.