Company lists · Data refreshed November 2026

Top 25 Federal systems consultants worldwide

Name: Federal systems consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 18,392 companies tracked

RevenueBase identified 18,392 company matches for federal systems consultants worldwide as of November 2026 and tracks 324,028 professional contacts across them, including 87,330 with verified work emails. The United States is the largest market and Washington the largest hub.

This list covers company matches for federal systems consultants worldwide, 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. Country and city lists for federal systems consultants follow the table.

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

18,392Companies

324,028Contacts tracked

87,330Verified emails

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

The 25 largest federal systems consultants worldwide

Ranked by team size

Top 25 of 18,392 company matches for federal systems consultants worldwide, 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	Amaris Consulting Part Of Mantu	Exact match	Chêne-bourg, SwitzerlandHQ recorded Nov 6, 2026	5,001-10,000	5,223 contacts →
	Exact match “Amaris Consulting is an independent technology consulting firm providing guidance and solutions to businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	GFI World	Exact match	Saint-ouen, FranceHQ recorded Nov 6, 2026	10001+	2,224 contacts →
	Exact match “Gfi became Inetum in 2020.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	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
6	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
7	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
8	P3	Exact match	Stuttgart, GermanyHQ recorded Nov 6, 2026	1,001-5,000	1,580 contacts →
	Exact match “P3 group is an independent, owner-managed technology and management consulting group founded in 1996.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	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
10	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
11	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
12	V Group INC	Exact match	Cranbury, United StatesHQ recorded Nov 6, 2026	n/a	1,384 contacts →
	Exact match “Since V Group Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Accenture Greece	Exact match	Kifisia, GreeceHQ recorded Nov 6, 2026	1,001-5,000	1,169 contacts →
	Exact match “Η Accenture είναι ηγέτιδα εταιρεία παροχής συμβουλευτικών υπηρεσιών σε παγκόσμιο επίπεδο, δημιουργώντας απτή αξία με ταχύτητα και σε μεγάλη κλίμακα.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Mfec Public Company Limited	Exact match	Chomphon, ThailandHQ recorded Nov 6, 2026	1,001-5,000	1,066 contacts →
	Exact match “MFEC Public Company Limited (PLC) established in 1997, is positioned as a premier IT service provider specializing in network computing and e-business, serving mainly large…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	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
16	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
17	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
18	Teksynap	Exact match	Virginia, LA, South AfricaHQ recorded Nov 6, 2026	1,001-5,000	952 contacts →
	Exact match “TekSynap understands both the pace of technology today and the need to have a comprehensive well planned information management environment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	NUMEN	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	501-1,000	951 contacts →
	Exact match “Numen is an international consultancy specialized in enterprise technologies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	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
21	Viveris	Exact match	Boulogne-billancourt, FranceHQ recorded Nov 6, 2026	1,001-5,000	870 contacts →
	Exact match “Viveris is a consulting and engineering company with two main activities - IT consulting.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Atturra	Exact match	Sydney, AustraliaHQ recorded Nov 6, 2026	1,001-5,000	869 contacts →
	Exact match “Atturra (ASX: ATA) is one of Australia's leading advisory and IT solutions providers, focused on providing end-to-end transformation services to its clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	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
24	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
25	NCS Group Australia	Exact match	Sydney, AustraliaHQ recorded Nov 6, 2026	1,001-5,000	832 contacts →
	Exact match “NCS in Australia is reinventing technology services from the inside out.” 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 18,392 federal systems consultants worldwide

See the full list, filter by size, metro and specialty, and access 87,330 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Federal systems consultants worldwide at a glance

As of Nov 6, 2026

27.0%Verified-email coverage

17.6Average contacts per company

1-10Median size (employees)

1.6%Largest-city concentration · Washington

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

9,999

11-50

5,476

51-200

2,093

201-500

510

501-1,000

111

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for federal systems consultants are linked below.
What qualifies: Company records worldwide 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. 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 87,330 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 location

121 lists · largest first

Every Federal systems consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 worldwide?

RevenueBase identified 18,392 company matches for federal systems consultants worldwide 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 country has the most federal systems consultants?

The United States leads with 6,454 companies, followed by Brazil (691) and India (670). Every federal systems consultants list by country and city is linked on this page.

Which city has the most federal systems consultants?

Washington leads with 295 company records, followed by Sao Paulo (191) and London (190).

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 87,330 professional contacts with verified work emails tracked across these 18,392 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.

Ready to reach these companies? Verified emails and direct dials for all 18,392 federal systems consultants worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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 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.