Company lists · Data refreshed September 2026

Top 25 IT consultancy services based in Reston, United States

Name: IT consultancy services based in Reston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 176 companies tracked

RevenueBase identified 176 IT consultancy services headquartered in Reston, United States as of September 2026 and tracks 24,111 professional contacts across them, including 8,243 with verified work emails. New York is the largest hub.

This list covers IT consultancy services headquartered in Reston, 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 27, 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 27, 2026 86% judged on-target in blind review

176Companies

24,111Contacts tracked

8,243Verified emails

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The 25 largest IT consultancy services based in Reston, United States

Ranked by team size

Top 25 of 176 IT consultancy services based in Reston, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to IT consultancy 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	ICF	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	5,001-10,000	9,459 contacts →
	Indirect evidence “ICF is a leading global solutions and technology provider.” Source: RevenueBase Database · checked Sep 27, 2026
2	Genpact Headstrong Capital Markets	Partial evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	10001+	3,109 contacts →
	Partial evidence “Genpact Headstrong Capital Markets is a global consulting and IT services company with a specialized focus in capital markets.” Source: RevenueBase Database · checked Sep 27, 2026
3	TKXEL	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	501-1,000	1,196 contacts →
	Indirect evidence “tkxel is an AI-native technology partner helping businesses build intelligent systems for lasting business value.” Source: RevenueBase Database · checked Sep 27, 2026
4	Systems Engineering Services Corporation Sesc	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 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 27, 2026
5	AIS Applied Information Sciences	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	501-1,000	701 contacts →
	Indirect evidence “AIS helps large commercial and federal clients accelerate innovation with security and compliance in mind.” Source: RevenueBase Database · checked Sep 27, 2026
6	Metrostar	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	501-1,000	469 contacts →
	Indirect evidence “MetroStar, a Veritas Capital portfolio company, is delivering next-generation products and solutions to U.S.” Source: RevenueBase Database · checked Sep 27, 2026
7	Brillient Corporation	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	1,001-5,000	455 contacts →
	Indirect evidence “Brillient is an award-winning Full Spectrum Digital Transformation company enabling clients to transform through the continuum of analog, to digital, to analytics leading to…” Source: RevenueBase Database · checked Sep 27, 2026
8	1rivet	Partial evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	201-500	415 contacts →
	Partial evidence “1Rivet is an award-winning, international IT Strategy & Consulting firm headquartered in the Washington, D.C.” Source: RevenueBase Database · checked Sep 27, 2026
9	Paladion An Atos Business	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	501-1,000	369 contacts →
	Indirect evidence “As of April 2023, Paladion is part of Atos Group.” Source: RevenueBase Database · checked Sep 27, 2026
10	Excelacom	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	501-1,000	306 contacts →
	Indirect evidence “Excelacom is a global Software and Consulting company headquartered in Reston, VA, just outside of Washington, D.C, with offices across North America and Europe and a Technology…” Source: RevenueBase Database · checked Sep 27, 2026
11	1901 Group	Partial evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	201-500	306 contacts →
	Partial evidence “1901 Group, a wholly owned subsidiary of Leidos, is a leading FedRAMP authorized managed service provider for public and private sectors delivering innovative IT solutions by…” Source: RevenueBase Database · checked Sep 27, 2026
12	TIAG	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	201-500	297 contacts →
	Indirect evidence “Delivering transformative technology solutions for the public sector and across the Department of Defense, TIAG drives modernization through synergistic processes and unique…” Source: RevenueBase Database · checked Sep 27, 2026
13	Dominion Consulting	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	51-200	278 contacts →
	Indirect evidence “Dominion Consulting is now TeraThink.” Source: RevenueBase Database · checked Sep 27, 2026
14	DEV Technology Group, INC	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	201-500	267 contacts →
	Indirect evidence “Dev Technology is an information technology services company delivering mission-critical applications and systems that protect and serve American citizens.” Source: RevenueBase Database · checked Sep 27, 2026
15	Evolver	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	501-1,000	235 contacts →
	Indirect evidence “Founded in Evolver was built on a clear purpose: to help government and enterprise customers achieve long-term success.” Source: RevenueBase Database · checked Sep 27, 2026
16	Fedtec	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	201-500	231 contacts →
	Indirect evidence “FedTec Reply is a leading digital solutions, infrastructure services and cybersecurity provider for federal government agencies.” Source: RevenueBase Database · checked Sep 27, 2026
17	Pantheon INC	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	501-1,000	229 contacts →
	Indirect evidence “Pantheon Inc specializes in providing a wide array of products, software development, consulting and support services.” Source: RevenueBase Database · checked Sep 27, 2026
18	Metaphase	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	201-500	224 contacts →
	Indirect evidence “MetaPhase works at the intersection of mission and technology - creating, deploying, and supporting innovative solutions that serve as a force multiplier for government.” Source: RevenueBase Database · checked Sep 27, 2026
19	Riva Solutions, INC	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	201-500	224 contacts →
	Indirect evidence “RIVA Solutions, Inc.(RIVA) is a new kind of government contractor providing Digital Transformation to the public sector.” Source: RevenueBase Database · checked Sep 27, 2026
20	PRISM	Partial evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	51-200	208 contacts →
	Partial evidence “PRISM is devoted to modernization and innovation within the world of technology, security, and IT enterprise solutions.” Source: RevenueBase Database · checked Sep 27, 2026
21	Mindpoint Group, A Quantum SKY Company	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	1,001-5,000	204 contacts →
	Indirect evidence “MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Source: RevenueBase Database · checked Sep 27, 2026
22	Seneca Resources	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	201-500	186 contacts →
	Indirect evidence “Seneca Resources is an Information Technology and Engineering professional services firm supporting clients in the public and private sectors.” Source: RevenueBase Database · checked Sep 27, 2026
23	Intact Technology	Partial evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	201-500	173 contacts →
	Partial evidence “Intact Technology is a different kind of ServiceNow consultant.” Source: RevenueBase Database · checked Sep 27, 2026
24	Esolutionsfirst	Partial evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	201-500	158 contacts →
	Partial evidence “eSolutionsFirst is a premier technology and talent solutions partner providing best-in-class IT solutions and staffing services that empower our clients to be market leaders.” Source: RevenueBase Database · checked Sep 27, 2026
25	Electrosoft	Indirect evidence	Reston, VA, United StatesHQ checked Sep 27, 2026	51-200	141 contacts →
	Indirect evidence “Electrosoft delivers a diversified set of technology-based solutions and services differentiated by thought leadership and innovation.” Source: RevenueBase Database · checked Sep 27, 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: IT consultancy 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 IT consultancy services.
Partial evidence: Its own public description names part of IT consultancy services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT consultancy 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 176 IT consultancy services based in Reston, United States

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IT consultancy services based in Reston, United States at a glance

As of Sep 27, 2026

34.2%Verified-email coverage

137.0Average contacts per company

51-200Median size (employees)

576.7%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United States list rather than for Reston, so it is reported there. Company counts and contact totals on this page are exact for Reston, over 176 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 IT consultancy 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 Reston, United States whose own description of what they do matches “IT consultancy 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 IT consultancy 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 IT consultancy services, and records with no verified work email. Companies headquartered outside Reston 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, 8,243 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 27, 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.

IT consultancy 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 IT consultancy 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 IT consultancy services are there based in Reston, United States?

RevenueBase identified 176 IT consultancy services headquartered in Reston, 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?

ICF, headquartered in Reston, tops this list with the largest team on record.

Which city has the most IT consultancy services?

New York leads with 1015 headquartered companies, followed by Houston (652) and Dallas (532).

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 8,243 verified decision-maker contacts tracked across these 176 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 27, 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.