Company lists · Data refreshed November 2026

Top 25 Federal systems consultants based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 6,454 companies tracked

RevenueBase identified 6,454 company matches for federal systems consultants associated with the United States as of November 2026 and tracks 184,420 professional contacts across them, including 54,468 with verified work emails. Washington is the largest hub.

This list covers company matches for federal systems consultants associated with the 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 November 6, 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 Nov 6, 2026 How this list was built

6,454Companies

184,420Contacts tracked

54,468Verified emails

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The 25 largest federal systems consultants based in the United States

Ranked by team size

Top 25 of 6,454 company matches for federal systems consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Guidehouse	Exact match	Mclean, IL, United StatesHQ recorded Nov 6, 2026	10001+	13,603 contacts →
	Exact match “Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Mantech	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	10,193 contacts →
	Exact match “About Us: At MANTECH, we believe national security demands more than technology-it requires an unwavering dedication to the mission and the warfighters who defend it.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	American Systems	Exact match	Mclean, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,085 contacts →
	Exact match “Founded in 1975, AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	DCS Corp	Exact match	Alexandria, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,955 contacts →
	Exact match “DCS delivers advanced technology and management solutions to Government agencies in the national security sector.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	ASM Research	Exact match	Fairfax, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,728 contacts →
	Exact match “ASM Research, an Accenture Federal Services Company, is an information solutions integrator and a leading provider of innovative technology solutions and advanced analytical…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Csra INC	Exact match	Falls Church, VA, United StatesHQ recorded Nov 6, 2026	10001+	1,551 contacts →
	Exact match “General Dynamics Information Technology and CSRA have united to create the premier provider of high-tech IT solutions to the government IT market.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Davey Resource Group, INC	Exact match	Kent, OH, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,477 contacts →
	Exact match “Davey Resource Group, Inc.(DRG) provides innovative consulting and field services that support utility infrastructure and environmental stewardship.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	ALKU	Exact match	Andover, NC, United StatesHQ recorded Nov 6, 2026	201-500	1,471 contacts →
	Exact match “ALKU® is a highly specialized consulting services firm focused on deploying highly skilled consulting resources in the areas of Technologies, HCIT, Life Sciences, and Government…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	PPC	Exact match	Trevose, PA, United StatesHQ recorded Nov 6, 2026	201-500	1,017 contacts →
	Exact match “PPC is now part of DSA” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Chugach Government Solutions, LLC	Exact match	Anchorage, AK, United StatesHQ recorded Nov 6, 2026	1,001-5,000	986 contacts →
	Exact match “Chugach Government Solutions,(CGS) is a government contracting company formed by Chugach Alaska Corporation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	The MIL Corporation	Exact match	Bowie, MD, United StatesHQ recorded Nov 6, 2026	501-1,000	978 contacts →
	Exact match “Established in 1980, MIL provides innovative cyber, engineering, financial, and information technology services to the federal government.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Mvm, INC	Exact match	San Antonio, VA, United StatesHQ recorded Nov 6, 2026	501-1,000	872 contacts →
	Exact match “MVM has been providing exceptional service to federal clients since its founding in 1979.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Iron BOW Technologies	Exact match	Herndon, MD, United StatesHQ recorded Nov 6, 2026	501-1,000	854 contacts →
	Exact match “Iron Bow Technologies is an IT solutions provider that helps organizations solve complex technology challenges across federal, state and local government, education, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Cognosante	Exact match	Falls Church, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	851 contacts →
	Exact match “At Cognosante, we help create a safe, healthy, more equitable nation for all.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Systems Engineering Services Corporation Sesc	Exact match	Reston, DE, United StatesHQ recorded Nov 6, 2026	201-500	812 contacts →
	Exact match “Systems Engineering Services Corporation (SESC), founded in 1989, is a leading provider of technology solutions to Fortune companies and government organizations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Calibre Systems, INC	Exact match	Alexandria, VA, United StatesHQ recorded Nov 6, 2026	501-1,000	793 contacts →
	Exact match “CALIBRE Systems, Inc.(CALIBRE) is an employee-owned AI transformation company delivering mission focused solutions to Defense, Federal / Civil, and Commercial clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	STG INC	Exact match	Reston, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	727 contacts →
	Exact match “SOS International LLC (SOSi) is a family-owned, middle-market government services integrator that works principally in the defense and intelligence sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Abacus Technology Corporation	Exact match	Chevy Chase, MD, United StatesHQ recorded Nov 6, 2026	501-1,000	683 contacts →
	Exact match “Abacus Technology Corporation delivers leading edge, high quality assistance in response to complex technology challenges.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Denali Advanced Integration	Exact match	Redmond, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	663 contacts →
	Exact match “Denali Advanced Integration delivers Enterprise IT solutions and services globally.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Planned Systems International	Exact match	Columbia, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	638 contacts →
	Exact match “Since 1988, PSI teams have provided our government customers with innovative, cost effective solutions that solve today’s complex challenges, improve operational efficiencies, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Salient Crgt	Exact match	Fairfax, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	635 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Solomonedwards	Exact match	Wayne, PA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	633 contacts →
	Exact match “For more than 25 years, SolomonEdwards has empowered organizations to tackle common and complex business challenges through strategic advisory, technical advocacy, and hands-on…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Respec	Exact match	Rapid City, KY, United StatesHQ recorded Nov 6, 2026	501-1,000	626 contacts →
	Exact match “In a world where one superhero can handle almost any problem, our entire team of award-winning technology experts is on a mission to make your business better.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Srinsoft INC	Exact match	Boca Raton, FL, United StatesHQ recorded Nov 6, 2026	501-1,000	603 contacts →
	Exact match “SrinSoft is a leading IT consulting & engineering firm specializing in digital transformation, software development, and engineering solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	DLC	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	201-500	577 contacts →
	Exact match “DLC is an award-winning industry leader in Finance, Accounting, Program Management & Process Improvement Consulting.” Recorded in the RevenueBase company graph · Nov 6, 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 “federal systems consultants”. 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 6,454 federal systems consultants based in the United States

See the full list, filter by size, metro and specialty, and access 54,468 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Federal systems consultants based in the United States at a glance

As of Nov 6, 2026

29.5%Verified-email coverage

28.6Average contacts per company

11-50Median size (employees)

4.6%Largest-city concentration · Washington

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

3,058

11-50

1,967

51-200

1,033

201-500

275

501-1,000

1,001-5,000

5,001-10,000

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 6,454 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 the United States whose business descriptions match “federal systems consultants” 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 54,468 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 November 6, 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.

Federal systems consultants by metro

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 “federal systems consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many federal systems consultants are there based in the United States?

RevenueBase identified 6,454 company matches for federal systems consultants associated with the United States as of November 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?

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

Which city has the most federal systems consultants?

Washington leads with 295 company records, followed by Reston (134) and Arlington (128).

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 54,468 professional contacts with verified work emails tracked across these 6,454 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 November 6, 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.