Company lists · Data refreshed September 2026

Top 25 IT services and consulting companies based in Reston, United States

Name: IT services and consulting companies 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 210 companies tracked

RevenueBase identified 210 company matches for IT services and consulting companies associated with Reston, United States as of September 2026 and tracks 21,307 professional contacts across them, including 7,400 with verified work emails. Across the United States, New York is the largest hub for this category (1,489 companies); Reston has 210.

This list covers company matches for IT services and consulting companies 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

210Companies

21,307Contacts tracked

7,400Verified emails

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

Ranked by team size

Top 25 of 210 company matches for IT services and consulting companies 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	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
4	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
5	Brillient Corporation	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	455 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	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
7	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
8	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
9	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
10	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
11	TSPI	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	201-500	247 contacts →
	Exact match “TSPi delivers IT solutions that drive performance.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	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
13	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
14	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
15	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
16	Electrosoft	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	51-200	141 contacts →
	Exact match “Electrosoft delivers a diversified set of technology-based solutions and services differentiated by thought leadership and innovation.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	Insigma INC	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	51-200	117 contacts →
	Exact match “Insigma Incorporation is an Information Technology provider delivering superior quality software development, consulting and staffing solutions to our client partners.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	Intellibus	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	51-200	106 contacts →
	Exact match “We are a team of passionate software engineers and entrepreneurs.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	Pureintegration	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	51-200	105 contacts →
	Exact match “The epitome of ‘punching above our weight’, pureIntegration is the secret weapon you may never have heard of.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	Qbatch	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	51-200	100 contacts →
	Exact match “Qbatch is an AI-enabled software delivery company helping businesses and public-sector organizations build products, automate workflows, and modernize systems.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	Vivid Edge Corp	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	51-200	95 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	Silosmashers, INC	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	51-200	94 contacts →
	Exact match “SiloSmashers is an industry leading strategy, management, and technology consulting firm, with depth of knowledge and expertise, and a proven methodology that enables customers to…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	Aeec, LLC	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	51-200	92 contacts →
	Exact match “AEEC has a proven track record of providing innovative IT, Engineering, Environmental, and Project Management services to the commercial and federal market since 1995.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	Halfaker And Associates, LLC	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	201-500	89 contacts →
	Exact match “Halfaker has been acquired by SAIC.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	Oteemo INC	Exact match	Reston, VA, United StatesHQ recorded Sep 27, 2026	51-200	88 contacts →
	Exact match “Oteemo is a technology and business transformation consulting firm that combines deep technical expertise with human-centered design principles to deliver innovative solutions.” 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 and consulting companies”. 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 210 IT services and consulting companies based in Reston, United States

See the full list, filter by size, metro and specialty, and access 7,400 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Sep 27, 2026

34.7%Verified-email coverage

101.5Average 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 210 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 and consulting companies” 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 7,400 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 and consulting companies 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 and consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 210 company matches for IT services and consulting companies 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 and consulting companies?

New York leads the United States with 1,489 company records, followed by Houston (926) and Dallas (734). Reston has 210.

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 7,400 professional contacts with verified work emails tracked across these 210 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.