Company lists · Data refreshed September 2026

Top 25 Federal modernization consulting firms worldwide

Name: Federal modernization consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 7,546 companies tracked

RevenueBase identified 7,546 federal modernization consulting firms worldwide as of September 2026 and tracks 164,058 professional contacts across them, including 52,747 with verified work emails. The United States is the largest market and Washington the largest hub.

This list covers federal modernization consulting firms worldwide, 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. Country and city lists for federal modernization consulting firms follow the table.

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

7,546Companies

164,058Contacts tracked

52,747Verified emails

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The 25 largest federal modernization consulting firms worldwide

Ranked by team size

Top 25 of 7,546 federal modernization consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to federal modernization 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	Guidehouse	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 28, 2026	10001+	12,815 contacts →
	Indirect evidence “Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.” Source: RevenueBase Database · checked Sep 28, 2026
2	Mantech	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 28, 2026	5,001-10,000	9,697 contacts →
	Indirect evidence “MANTECH is more than a technology company.” Source: RevenueBase Database · checked Sep 28, 2026
3	Accenture Federal Services	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	10001+	9,125 contacts →
	Partial evidence “We power reinvention across the US federal government to help agencies deliver greater outcomes using proven commercial solutions, mission expertise, and new technologies – cloud…” Source: RevenueBase Database · checked Sep 28, 2026
4	Tyler Technologies	Indirect evidence	Plano, TX, United StatesHQ checked Sep 28, 2026	5,001-10,000	6,842 contacts →
	Indirect evidence “Tyler Technologies (NYSE: TYL) provides integrated software and technology services to the public sector.” Source: RevenueBase Database · checked Sep 28, 2026
5	LMI	Indirect evidence	Tysons, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,580 contacts →
	Indirect evidence “LMI is a new breed of digital solutions provider, disrupting the traditional govcon model with commercial-grade technology that is ready day-one.” Source: RevenueBase Database · checked Sep 28, 2026
6	Govcio	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,101 contacts →
	Indirect evidence “GovCIO was founded with a single purpose- to transform government IT.” Source: RevenueBase Database · checked Sep 28, 2026
7	Csra INC	Indirect evidence	Falls Church, VA, United StatesHQ checked Sep 28, 2026	10001+	1,495 contacts →
	Indirect evidence “General Dynamics Information Technology and CSRA have united to create the premier provider of high-tech IT solutions to the government IT market.” Source: RevenueBase Database · checked Sep 28, 2026
8	Trigyn Technologies	Indirect evidence	Mumbai, IndiaHQ checked Sep 28, 2026	1,001-5,000	1,230 contacts →
	Indirect evidence “We're re-engineering the way business is done.” Source: RevenueBase Database · checked Sep 28, 2026
9	Accenture Greece	Indirect evidence	Kifisia, GreeceHQ checked Sep 28, 2026	1,001-5,000	1,171 contacts →
	Indirect evidence “Η Accenture είναι ηγέτιδα εταιρεία παροχής συμβουλευτικών υπηρεσιών σε παγκόσμιο επίπεδο, δημιουργώντας απτή αξία με ταχύτητα και σε μεγάλη κλίμακα.” Source: RevenueBase Database · checked Sep 28, 2026
10	PPC	Indirect evidence	Trevose, PA, United StatesHQ checked Sep 28, 2026	201-500	979 contacts →
	Indirect evidence “PPC is now part of DSA” Source: RevenueBase Database · checked Sep 28, 2026
11	Teksynap	Indirect evidence	Virginia, South AfricaHQ checked Sep 28, 2026	1,001-5,000	927 contacts →
	Indirect evidence “TekSynap understands both the pace of technology today and the need to have a comprehensive well planned information management environment.” Source: RevenueBase Database · checked Sep 28, 2026
12	REI Systems	Partial evidence	Sterling, VA, United StatesHQ checked Sep 28, 2026	501-1,000	863 contacts →
	Partial evidence “REI Systems delivers reliable and innovative technology solutions that empower federal, state, local, and nonprofit organizations to achieve their missions.” Source: RevenueBase Database · checked Sep 28, 2026
13	Iron BOW Technologies	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 28, 2026	501-1,000	841 contacts →
	Indirect evidence “We deliver mission success through next-generation solutions across government, healthcare, and commercial markets.” Source: RevenueBase Database · checked Sep 28, 2026
14	Cognosante	Indirect evidence	Falls Church, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	829 contacts →
	Indirect evidence “At Cognosante, we help create a safe, healthy, more equitable nation for all.” Source: RevenueBase Database · checked Sep 28, 2026
15	NUMEN	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 28, 2026	501-1,000	828 contacts →
	Indirect evidence “Numen is an international consultancy specialized in enterprise technologies.” Source: RevenueBase Database · checked Sep 28, 2026
16	Calibre Systems, INC	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	501-1,000	768 contacts →
	Partial evidence “CALIBRE Systems, Inc.(CALIBRE) is an employee-owned AI transformation company delivering mission focused solutions to Defense, Federal / Civil, and Commercial clients.” Source: RevenueBase Database · checked Sep 28, 2026
17	Systems Engineering Services Corporation Sesc	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	201-500	747 contacts →
	Indirect evidence “Systems Engineering Services Corporation (SESC), founded in 1989, is a leading provider of technology solutions to Fortune companies and government organizations.” Source: RevenueBase Database · checked Sep 28, 2026
18	Lgs, An IBM Company	Partial evidence	Québec, QC, CanadaHQ checked Sep 28, 2026	501-1,000	742 contacts →
	Partial evidence “A consulting firm providing technology solutions and advisory services to both private and public sector organizations.” Source: RevenueBase Database · checked Sep 28, 2026
19	PD	Indirect evidence	Berlin, GermanyHQ checked Sep 28, 2026	1,001-5,000	702 contacts →
	Indirect evidence “Die PD ist die Beratung / Für die öffentliche Hand von morgen / Seit 2008 beraten wir ausschließlich öffentliche Auftraggeber zu moderner Verwaltungsarbeit und…” Source: RevenueBase Database · checked Sep 28, 2026
20	CAT Technologies LTD	Partial evidence	Hyd, IndiaHQ checked Sep 28, 2026	201-500	660 contacts →
	Partial evidence “CAT Technology Inc, established in October is engaged in providing quality consulting services in Systems Analysis, System Design, Database Administration, Systems Engineering…” Source: RevenueBase Database · checked Sep 28, 2026
21	Salient Crgt	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 28, 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 28, 2026
22	Abacus Technology Corporation	Indirect evidence	Chevy Chase, MD, United StatesHQ checked Sep 28, 2026	501-1,000	627 contacts →
	Indirect evidence “Abacus Technology Corporation delivers leading edge, high quality assistance in response to complex technology challenges.” Source: RevenueBase Database · checked Sep 28, 2026
23	Planned Systems International	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	1,001-5,000	611 contacts →
	Indirect evidence “Since 1988, PSI teams have provided our government customers with innovative, cost effective solutions that solve today’s complex challenges, improve operational efficiencies, and…” Source: RevenueBase Database · checked Sep 28, 2026
24	Vtech Solution INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	201-500	576 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
25	Srinsoft INC	Partial evidence	Boca Raton, FL, United StatesHQ checked Sep 28, 2026	501-1,000	568 contacts →
	Partial evidence “SrinSoft is a leading IT consulting & engineering firm specializing in digital transformation, software development, and engineering solutions.” Source: RevenueBase Database · checked Sep 28, 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 modernization 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 modernization consulting firms.
Partial evidence: Its own public description names part of federal modernization 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 modernization 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 7,546 federal modernization consulting firms worldwide

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Federal modernization consulting firms worldwide at a glance

As of Sep 28, 2026

32.2%Verified-email coverage

21.7Average contacts per company

1-10Median size (employees)

2.6%Largest-city concentration · Washington

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

4,197

11-50

2,097

51-200

899

201-500

232

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 modernization 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.
Coverage: Every country. Country and city lists for federal modernization consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “federal modernization 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 modernization 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 modernization consulting firms, and records with no verified work email.
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, 52,747 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.

Federal modernization consulting firms by location

55 lists · largest first

Every Federal modernization consulting firms 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 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 modernization 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 modernization consulting firms are there worldwide?

RevenueBase identified 7,546 federal modernization consulting firms worldwide 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?

Guidehouse, headquartered in Mclean, tops this list with the largest team on record.

Which country has the most federal modernization consulting firms?

The United States leads with 3,276 companies, followed by Brazil (301) and India (268). Every federal modernization consulting firms list by country and city is linked on this page.

Which city has the most federal modernization consulting firms?

Washington leads with 194 headquartered companies, followed by Reston (109) and Arlington (95).

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 52,747 verified decision-maker contacts tracked across these 7,546 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.