Company lists · Data refreshed September 2026

Top 25 Federal consulting firms based in Herndon, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 40 companies tracked

RevenueBase identified 40 federal consulting firms headquartered in Herndon, United States as of September 2026 and tracks 12,089 professional contacts across them, including 3,706 with verified work emails. Across the United States, Washington is the largest hub for this category (361 companies); Herndon has 40.

This list covers federal consulting firms headquartered in Herndon, 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 14, 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 14, 2026 86% judged on-target in blind review

40Companies

12,089Contacts tracked

3,706Verified emails

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The 25 largest federal consulting firms based in Herndon, United States

Ranked by team size

Top 25 of 40 federal consulting firms based in Herndon, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to federal 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	Mantech	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	5,001-10,000	9,697 contacts →
	Indirect evidence “MANTECH is more than a technology company.” Source: RevenueBase Database · checked Sep 14, 2026
2	Iron BOW Technologies	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 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 14, 2026
3	GAP Solutions, INC	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	501-1,000	341 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
4	Netimpact Strategies INC	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	201-500	254 contacts →
	Partial evidence “NetImpact has been a Trusted Advisor driving impact through digital transformation for the Federal Government for over a decade.” Source: RevenueBase Database · checked Sep 14, 2026
5	ASI Government	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	192 contacts →
	Indirect 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 14, 2026
6	Idea Entity	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	145 contacts →
	Indirect evidence “Idea Entity makes ideas real through the application of technology.” Source: RevenueBase Database · checked Sep 14, 2026
7	Indigo IT LLC	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	101 contacts →
	Partial evidence “Founded in 2001, Indigo IT is an award winning information technology consulting and services company.” Source: RevenueBase Database · checked Sep 14, 2026
8	Makpar	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	87 contacts →
	Partial evidence “Makpar is a comprehensive professional and technical solutions provider for the Federal government.” Source: RevenueBase Database · checked Sep 14, 2026
9	Ascella Technologies, INC	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	71 contacts →
	Indirect evidence “Who We Are Ascella's founders are all veterans of the IT industry.” Source: RevenueBase Database · checked Sep 14, 2026
10	Akima Global Technology	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	68 contacts →
	Partial evidence “Akima Global Technology is a technology solutions, program management and support company that collaborates with technology partners and the Federal Government to deliver IT…” Source: RevenueBase Database · checked Sep 14, 2026
11	Oran INC	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	29 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
12	Vissat Solutions	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	11-50	23 contacts →
	Indirect evidence “Vissat Solutions, Inc is a Virginia-based small business founded in 2005.” Source: RevenueBase Database · checked Sep 14, 2026
13	Cortechs, Inc. DBA B12 Government Solutions	Strong evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	11-50	16 contacts →
	Strong evidence “B12 Government Solutions is a leader in “advancing the art and science of delivering quality software”, and providing Consulting Services for Federal, State and Local Government…” Source: RevenueBase Database · checked Sep 14, 2026
14	Digital Alliance	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	11-50	14 contacts →
	Indirect evidence “About Us Delivering Practical Information Technology Solutions Digital Alliance provides technology-enabled services and strategies to help an extensive variety of industries…” Source: RevenueBase Database · checked Sep 14, 2026
15	The Reckon Crew	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	1-10	9 contacts →
	Partial evidence “At Reckon, we are the vanguard of a new era in government IT consulting, a small but mighty startup driven by a mission to empower government agencies with cutting-edge technology…” Source: RevenueBase Database · checked Sep 14, 2026
16	Mt. TAM Innovations	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	8 contacts →
	Partial evidence “Business and technology consulting firm servicing the Fortune organizations through professional services, program management, and customer success.” Source: RevenueBase Database · checked Sep 14, 2026
17	Integrity Intelligence INC	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	1-10	7 contacts →
	Indirect evidence “Integrity Intelligence is an IT Professional Services corporation started by senior technology leaders who left successful careers to return to a small, customer focused company…” Source: RevenueBase Database · checked Sep 14, 2026
18	Acelar, INC	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	11-50	3 contacts →
	Partial evidence “Acelar provides Enterprise-wide Information Technology and Consulting services to several DoD Agencies (Navy, Army, Defense Logistics Agency, Defense Security Cooperation Agency)…” Source: RevenueBase Database · checked Sep 14, 2026
19	Ziegler Communications LLC	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	11-50	3 contacts →
	Partial evidence “We’ve helped federal customers with the tools, technology, and talent to accomplish a variety of missions designed to better serve their mission, be it modernizing their…” Source: RevenueBase Database · checked Sep 14, 2026
20	BXT Partners LLC	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	1-10	3 contacts →
	Partial evidence “BXT Partners is a global consulting firm enabling growth and organizational efficiencies through the effective use of technology.” Source: RevenueBase Database · checked Sep 14, 2026
21	Itng, LLC	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	1-10	3 contacts →
	Indirect evidence “ITNG, LLC, headquartered in Herndon, Virginia, is a woman-owned IT Services firm with strong qualifications and expertise in Program Management, Infrastructure Solutions…” Source: RevenueBase Database · checked Sep 14, 2026
22	Revelation Technologies	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	1-10	2 contacts →
	Partial evidence “Revelation Technologies is a small, highly specialized technology consulting company that serves the commercial sector.” Source: RevenueBase Database · checked Sep 14, 2026
23	Phantom Engineering, INC	Strong evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	11-50	2 contacts →
	Strong evidence “Phantom Engineering is a technical services consulting firm supporting customers in the federal government sector.” Source: RevenueBase Database · checked Sep 14, 2026
24	Blue Skies Consulting, LLC	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	1-10	2 contacts →
	Partial evidence “Consulting services for IT, program management, acquisitions, and entrepreneurship” Source: RevenueBase Database · checked Sep 14, 2026
25	Mivia Leadership	Strong evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	1-10	2 contacts →
	Strong evidence “MIVIA Leadership is a business management consulting firm specializing in federal contracting, organizational engagement, and leadership development.” Source: RevenueBase Database · checked Sep 14, 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 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 consulting firms.
Partial evidence: Its own public description names part of federal 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 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 40 federal consulting firms based in Herndon, United States

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Federal consulting firms based in Herndon, United States at a glance

As of Sep 14, 2026

30.7%Verified-email coverage

302.2Average contacts per company

11-50Median size (employees)

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

Email recency for this list is measured across the whole United States list rather than for Herndon, so it is reported there. Company counts and contact totals on this page are exact for Herndon, over 40 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 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 Herndon, United States whose own description of what they do matches “federal 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 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 consulting firms, and records with no verified work email. Companies headquartered outside Herndon 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, 3,706 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 14, 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 consulting firms 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 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 consulting firms are there based in Herndon, United States?

RevenueBase identified 40 federal consulting firms headquartered in Herndon, 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?

Mantech, headquartered in Herndon, tops this list with the largest team on record.

Which city in the United States has the most federal consulting firms?

Washington leads the United States with 361 headquartered companies, followed by Arlington (136) and Atlanta (109). Herndon has 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 3,706 verified decision-maker contacts tracked across these 40 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 14, 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.