Company lists · Data refreshed September 2026

Top 25 Federal government consulting services based in Vienna, United States

Name: Federal government consulting services based in Vienna, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 62 companies tracked

RevenueBase identified 62 federal government consulting services headquartered in Vienna, United States as of September 2026 and tracks 2,514 professional contacts across them, including 825 with verified work emails. Washington is the largest hub.

This list covers federal government consulting services headquartered in Vienna, 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 21, 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 21, 2026 86% judged on-target in blind review

62Companies

2,514Contacts tracked

825Verified emails

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The 25 largest federal government consulting services based in Vienna, United States

Ranked by team size

Top 25 of 62 federal government consulting services based in Vienna, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to federal government consulting services: 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	Inserso Corporation	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	201-500	335 contacts →
	Indirect evidence “Inserso Corporation is ISO 9001:2015 (Quality), ISO (ITSM), and ISO 27001:2013 (Security) certified and CMMI-ML3 appraised Small Business.” Source: RevenueBase Database · checked Sep 21, 2026
2	Aretum	Partial evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	501-1,000	258 contacts →
	Partial evidence “Aretum is a leading government contracting company specializing in technology-enabled mission support services for the Department of War, Department of Homeland Security, and…” Source: RevenueBase Database · checked Sep 21, 2026
3	Intellidyne, LLC	Partial evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	201-500	256 contacts →
	Partial evidence “IntelliDyne is a leading government information technology firm enabling better mission performance through innovative technology solutions.” Source: RevenueBase Database · checked Sep 21, 2026
4	XLA	Partial evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	201-500	144 contacts →
	Partial evidence “XLA is an award-winning government services provider with 250 employees both domestically and internationally.” Source: RevenueBase Database · checked Sep 21, 2026
5	Itcon Services	Partial evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	51-200	127 contacts →
	Partial evidence “ITCON Services is a dynamic consulting company that provides innovative technology and management solutions to its customers.” Source: RevenueBase Database · checked Sep 21, 2026
6	Brtrc Federal Solutions	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	10001+	108 contacts →
	Indirect evidence “Serco Inc.” Source: RevenueBase Database · checked Sep 21, 2026
7	Softtek Government Solutions	Partial evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	201-500	103 contacts →
	Partial evidence “Softtek Government Solutions, formerly Aveshka, a Softtek Company, supports U.S.” Source: RevenueBase Database · checked Sep 21, 2026
8	Duty First Consulting	Strong evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	51-200	92 contacts →
	Strong evidence “DFC is a Service-Disabled Veteran-Owned Small Business (SDVOSB) providing management consulting services primarily to the federal government.” Source: RevenueBase Database · checked Sep 21, 2026
9	Heartland Consulting	Partial evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	51-200	80 contacts →
	Partial evidence “Heartland Consulting provides management consulting, information technology, and financial management services to the U.S.” Source: RevenueBase Database · checked Sep 21, 2026
10	M9 Solutions	Strong evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	51-200	77 contacts →
	Strong evidence “Founded in 2007, M9 Solutions is a fast-growing small business dedicated to providing IT services and solutions to the Federal Government.” Source: RevenueBase Database · checked Sep 21, 2026
11	Capital Edge Consulting	Strong evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	51-200	70 contacts →
	Strong evidence “Capital Edge is the largest consulting firm exclusively dedicated to government contractors and grant recipients.” Source: RevenueBase Database · checked Sep 21, 2026
12	Alltech International, INC	Indirect evidence	Vienna, United StatesHQ checked Sep 21, 2026	51-200	46 contacts →
	Indirect evidence “Alltech is an award winning provider of IT services headquartered in the Washington DC Metro area with nationwide project capabilities.” Source: RevenueBase Database · checked Sep 21, 2026
13	Intelligence Federal	Strong evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	51-200	42 contacts →
	Strong evidence “Intelligence Federal is an 8(a) certified government contract company with 20 years of experience focusing on legal services, professional services, program management and…” Source: RevenueBase Database · checked Sep 21, 2026
14	EDC Consulting LLC	Partial evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	51-200	39 contacts →
	Partial evidence “Headquartered in Tysons Corner, Virginia, EDC Consulting LLC (EDC) is a professional services company that provides industry-leading Business Systems and Information Technology…” Source: RevenueBase Database · checked Sep 21, 2026
15	Futrend Technology, INC	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	51-200	39 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
16	KEY Solutions, INC	Strong evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	11-50	29 contacts →
	Strong evidence “Key Solutions, Inc.(KSI) is a bid and proposal consulting firm that helps companies win government contracts.” Source: RevenueBase Database · checked Sep 21, 2026
17	Axseum, INC	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	51-200	26 contacts →
	Indirect evidence “Mission: aXseum’s mission, and our promise to customers, is to maximize productivity and fiscal responsibility while providing superior customer service.” Source: RevenueBase Database · checked Sep 21, 2026
18	Verdi Consulting	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	51-200	24 contacts →
	Indirect evidence “Certified Public Accountants And Other Experts With the Knowledge and Experience You Need Experienced professionals.” Source: RevenueBase Database · checked Sep 21, 2026
19	M1 Technology LLC	Partial evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	51-200	22 contacts →
	Partial evidence “M1 Technology, LLC is a technology consulting firm specializing in delivering quality software systems to meet our client's mission needs.” Source: RevenueBase Database · checked Sep 21, 2026
20	AET Federal INC	Strong evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	11-50	21 contacts →
	Strong evidence “AET Federal, Inc.(AET) is a leading government contracting company specializing in technology-enabled mission support services for the Department of Defense and Civilian agencies.” Source: RevenueBase Database · checked Sep 21, 2026
21	Omnisolve INC	Partial evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	11-50	20 contacts →
	Partial evidence “OmniSolve is a technology services and management consulting company that is built around the concept of giving our clients value and helping them to better achieve their goals.” Source: RevenueBase Database · checked Sep 21, 2026
22	SLS Solutions	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	11-50	13 contacts →
	Indirect evidence “SLS Solutions Inc, is a fast growing SBA 8(a), 8(a) STARS GWAC, MBE, WBE, WOSB vendor providing industry leading solutions that enable organizations achieve their mission and…” Source: RevenueBase Database · checked Sep 21, 2026
23	Intellizant	Strong evidence	Vienna, United StatesHQ checked Sep 21, 2026	11-50	12 contacts →
	Strong evidence “Intellizant is a management and technology consulting firm solving our clients most challenging problems and enabling them to become highly effective and efficient government…” Source: RevenueBase Database · checked Sep 21, 2026
24	D8 Group	Strong evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	11-50	10 contacts →
	Strong evidence “WIN-CENTERED MISSION The d8 Group's mission is to revolutionize the Business Development processes of winning Federal Government contract awards.” Source: RevenueBase Database · checked Sep 21, 2026
25	Pace LLC	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	11-50	8 contacts →
	Indirect evidence “PACE is an SBA 8(a) and SDVOSB company with exceptional expertise in the Acquisition and IT domains.” Source: RevenueBase Database · checked Sep 21, 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 government consulting services. 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 government consulting services.
Partial evidence: Its own public description names part of federal government consulting services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name federal government consulting services. 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 62 federal government consulting services based in Vienna, United States

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Federal government consulting services based in Vienna, United States at a glance

As of Sep 21, 2026

32.8%Verified-email coverage

40.5Average contacts per company

51-200Median size (employees)

488.7%Largest-city concentration · Washington

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

10001+

Email recency for this list is measured across the whole United States list rather than for Vienna, so it is reported there. Company counts and contact totals on this page are exact for Vienna, over 62 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 government consulting services, 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 Vienna, United States whose own description of what they do matches “federal government consulting services”. 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 government consulting services), 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 government consulting services, and records with no verified work email. Companies headquartered outside Vienna 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, 825 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 21, 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 government consulting services by metro in the United States

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 government consulting services, 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 government consulting services are there based in Vienna, United States?

RevenueBase identified 62 federal government consulting services headquartered in Vienna, 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?

Inserso Corporation, headquartered in Vienna, tops this list with the largest team on record.

Which city has the most federal government consulting services?

Washington leads with 303 headquartered companies, followed by Arlington (124) and Reston (93).

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 825 verified decision-maker contacts tracked across these 62 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 21, 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.