Company lists · Data refreshed September 2026

Top 25 IT services consulting firms based in Reston, United States

Name: IT services consulting firms 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 214 companies tracked

RevenueBase identified 214 company matches for IT services consulting firms associated with Reston, United States as of September 2026 and tracks 25,525 professional contacts across them, including 8,807 with verified work emails. Across the United States, New York is the largest hub for this category (1,398 companies); Reston has 214.

This list covers company matches for IT services consulting firms associated with Reston, United States, 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 September 27, 2026.

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 Sep 27, 2026 How this list was built

214Companies

25,525Contacts tracked

8,807Verified emails

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The 25 largest IT services consulting firms based in Reston, United States

Ranked by team size

Top 25 of 214 company matches for IT services consulting firms based in Reston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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	ICF	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	5,001-10,000	9,459 contacts →
	Exact match “ICF is a leading global solutions and technology provider.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2	Genpact Headstrong Capital Markets	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	10001+	3,109 contacts →
	Exact match “Genpact Headstrong Capital Markets is a global consulting and IT services company with a specialized focus in capital markets.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3	Guidepoint Security	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,232 contacts →
	Exact match “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	TKXEL	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	501-1,000	1,196 contacts →
	Exact match “tkxel is an AI-native technology partner helping businesses build intelligent systems for lasting business value.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	Systems Engineering Services Corporation Sesc	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	201-500	747 contacts →
	Exact match “Systems Engineering Services Corporation (SESC), founded in 1989, is a leading provider of technology solutions to Fortune companies and government organizations.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	AIS Applied Information Sciences	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	501-1,000	701 contacts →
	Exact match “AIS helps large commercial and federal clients accelerate innovation with security and compliance in mind.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7	Collaborative Solutions, LLC	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	447 contacts →
	Exact match “Collaborative Solutions, a Cognizant company, is a leading global Finance and HR Transformation consultancy that leverages world-class cloud solutions to help deliver successful…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	1rivet	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	201-500	415 contacts →
	Exact match “1Rivet is an award-winning, international IT Strategy & Consulting firm headquartered in the Washington, D.C.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9	Amyx, INC	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	501-1,000	411 contacts →
	Exact match “At Amyx, Inc, a wholly owned subsidiary of Tetra Tech, our mission is to exceed our customer's expectations on every contract, to provide an environment that encourages…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	Paladion An Atos Business	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	501-1,000	369 contacts →
	Exact match “As of April 2023, Paladion is part of Atos Group.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	Excelacom	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	501-1,000	306 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	1901 Group	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	201-500	306 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	TIAG	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	201-500	297 contacts →
	Exact match “Delivering transformative technology solutions for the public sector and across the Department of Defense, TIAG drives modernization through synergistic processes and unique…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14	Dominion Consulting	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	51-200	278 contacts →
	Exact match “Dominion Consulting is now TeraThink.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15	Evolver	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	501-1,000	235 contacts →
	Exact match “Founded in Evolver was built on a clear purpose: to help government and enterprise customers achieve long-term success.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	Fedtec	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	201-500	231 contacts →
	Exact match “FedTec Reply is a leading digital solutions, infrastructure services and cybersecurity provider for federal government agencies.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	Pantheon INC	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	501-1,000	229 contacts →
	Exact match “Pantheon Inc specializes in providing a wide array of products, software development, consulting and support services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	Metaphase	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	201-500	224 contacts →
	Exact match “MetaPhase works at the intersection of mission and technology - creating, deploying, and supporting innovative solutions that serve as a force multiplier for government.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	Riva Solutions, INC	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	201-500	224 contacts →
	Exact match “RIVA Solutions, Inc.(RIVA) is a new kind of government contractor providing Digital Transformation to the public sector.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	PRISM	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	51-200	208 contacts →
	Exact match “PRISM is devoted to modernization and innovation within the world of technology, security, and IT enterprise solutions.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	Adams Communication & Engineering Technology Acet, INC	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	201-500	206 contacts →
	Exact match “ACET, Inc.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	Mindpoint Group, A Quantum SKY Company	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	204 contacts →
	Exact match “MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	Seneca Resources	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	201-500	186 contacts →
	Exact match “Seneca Resources is an Information Technology and Engineering professional services firm supporting clients in the public and private sectors.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	Esolutionsfirst	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	201-500	158 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	Iworks Corporation	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	51-200	143 contacts →
	Exact match “iWorks Corporation, founded in 2005, is a leading provider of information technology and professional services to the federal government.” Recorded in the RevenueBase company graph · Sep 27, 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 “IT services consulting firms”. 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 214 IT services consulting firms based in Reston, United States

See the full list, filter by size, metro and specialty, and access 8,807 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT services consulting firms based in Reston, United States at a glance

As of Sep 27, 2026

34.5%Verified-email coverage

119.3Average contacts per company

11-50Median size (employees)

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 214 companies.

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.
What qualifies: Company records associated with Reston, United States whose business descriptions match “IT services consulting firms” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 8,807 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 September 27, 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.

IT services consulting firms by metro in the United States

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 “IT services consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT services consulting firms are there based in Reston, United States?

RevenueBase identified 214 company matches for IT services consulting firms associated with Reston, United States as of September 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?

ICF tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most IT services consulting firms?

New York leads the United States with 1,398 company records, followed by Houston (870) and Atlanta (682). Reston has 214.

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 8,807 professional contacts with verified work emails tracked across these 214 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 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 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.