Company lists · Data refreshed September 2026

Top 25 Public sector IT staffing firms based in Reston, United States

Name: Public sector IT staffing 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 29, 2026 53 companies tracked

RevenueBase identified 53 company matches for public sector IT staffing firms associated with Reston, United States as of September 2026 and tracks 2,534 professional contacts across them, including 496 with verified work emails. Across the United States, New York is the largest hub for this category (230 companies); Reston has 53.

This list covers company matches for public sector IT staffing 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 29, 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 29, 2026 How this list was built

53Companies

2,534Contacts tracked

496Verified emails

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The 25 largest public sector IT staffing firms based in Reston, United States

Ranked by team size

Top 25 of 53 company matches for public sector IT staffing firms based in Reston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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	Systems Engineering Services Corporation Sesc	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
2	Whitney, Bradley & Brown WBB	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	501-1,000	271 contacts →
	Exact match “WBB (now a part of Serco) is a leading government and public sector solutions provider, dedicated to the enduring success of our clients.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Seneca Resources	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
4	Esolutionsfirst	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
5	Quadrant, INC	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	501-1,000	153 contacts →
	Exact match “Founded in 2002, headquartered in Reston, VA, Quadrant, Inc.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Iworks Corporation	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
7	Aeec, LLC	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
8	True Solutions LLC	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	51-200	78 contacts →
	Exact match “True Solutions is a Software Development and Professional services company that specializes in sourcing information technology, accounting, finance, and engineering professionals…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Worldgate, LLC	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	51-200	71 contacts →
	Exact match “Worldgate LLC specializes in consulting services that support Information Technology demands in public sector agencies and school districts.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Shaavir LLC	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	51-200	51 contacts →
	Exact match “Staffing solutions for all” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Advanced Systems Engineering Corporation Asec , A Part Of Markon	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	201-500	45 contacts →
	Exact match “The ASEC family of companies is now a part of Markon, LLC, a national firm with a federal government focus, specializing in enterprise technology, business operations, and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Appteon INC	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	11-50	39 contacts →
	Exact match “Appteon is an award-winning, agile-experienced, professional services company that serves the federal government and private industry.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Hirestrategy	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	51-200	34 contacts →
	Exact match “HireStrategy is a full-service professional staffing firm providing contract, direct hire and executive search solutions for employers in the Washington DC area.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Quadtec Solutions, INC	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	51-200	26 contacts →
	Exact match “Quadtec Solutions is an IT consulting company that provides services to government agencies and companies in the private sector.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Altos Federal Group	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	11-50	24 contacts →
	Exact match “Altos Federal Group, Inc, d/b/a Altos Group, specializes in placing healthcare professionals on permanent, part time and as needed (PRN) contracts for the Department of Defense…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Gray Wolf Solutions, LLC	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	11-50	21 contacts →
	Exact match “Gray Wolf Solutions, LLC is a Small Business Co-founded in 2015 by Bonnie Jo Davis & Brad Davis.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Adrem Systems Corporation	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	11-50	16 contacts →
	Exact match “Smart People, Smart Technology, Smart Business”.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	The Xela Group	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	201-500	15 contacts →
	Exact match “The Xela Group provides IT talent and solutions that reduce your hiring lifecycle and drive collective success.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Rockwoods INC	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	51-200	15 contacts →
	Exact match “Our team has diverse group of experienced and talented professionals who can deliver everything from individual consulting and training to full-scale re-engineering, software…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Aspex, INC	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	11-50	15 contacts →
	Exact match “Aspex is a small, efficient, and effective software and information technology contracting company offering highly reliable and cost effective solutions for today's most advanced…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Constant Advancement	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	11-50	13 contacts →
	Exact match “Constant Advancement is comprised of professionals specializing in software development for the Public Sector.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Progression INC	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	11-50	12 contacts →
	Exact match “Welcome to Progression, Inc where we staff for IT & Admin roles on contract to hire basis.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Lalaith Astor Technical Consulting House Latch, LLC	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	11-50	9 contacts →
	Exact match “LATCH is an information technology solution provider serving the federal government, public sector, and national security organizations.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	CEE Corporation	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	11-50	9 contacts →
	Exact match “CEE Corporation is an Information Technology professional services company specializing in providing best cutting edge enterprise solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Johnson Technology Systems, Inc. Jtsi	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	51-200	8 contacts →
	Exact match “Established in 2003, JTSi is an IT & Engineering Services provider with years of documented experience in the Information Technology and Engineering services field.” Recorded in the RevenueBase company graph · Sep 29, 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 “public sector IT staffing 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 53 public sector IT staffing firms based in Reston, United States

See the full list, filter by size, metro and specialty, and access 496 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Public sector IT staffing firms based in Reston, United States at a glance

As of Sep 29, 2026

19.6%Verified-email coverage

47.8Average contacts per company

11-50Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 53 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 “public sector IT staffing 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 496 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 29, 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.

Public sector IT staffing 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 “public sector IT staffing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many public sector IT staffing firms are there based in Reston, United States?

RevenueBase identified 53 company matches for public sector IT staffing 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?

Systems Engineering Services Corporation Sesc 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 public sector IT staffing firms?

New York leads the United States with 230 company records, followed by Houston (163) and Dallas (154). Reston has 53.

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 496 professional contacts with verified work emails tracked across these 53 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 29, 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.