Company lists · Data refreshed October 2026

Top 25 Defense systems engineering consultants based in Reston, United States

Name: Defense systems engineering consultants based in Reston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 11, 2026 36 companies tracked

RevenueBase identified 36 company matches for defense systems engineering consultants associated with Reston, United States as of October 2026 and tracks 4,068 professional contacts across them, including 424 with verified work emails. Across the United States, Huntsville is the largest hub for this category (116 companies); Reston has 36.

This list covers company matches for defense systems engineering consultants 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 October 11, 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 Oct 11, 2026 How this list was built

36Companies

4,068Contacts tracked

424Verified emails

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The 25 largest defense systems engineering consultants based in Reston, United States

Ranked by team size

Top 25 of 36 company matches for defense systems engineering consultants based in Reston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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	Engility Corporation	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	5,001-10,000	1,309 contacts →
	Exact match “Engility Corporation is now part of SAIC, a premier technology integrator based in Reston, Virginia.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2	STG INC	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	1,001-5,000	708 contacts →
	Exact match “SOS International LLC (SOSi) is a family-owned, middle-market government services integrator that works principally in the defense and intelligence sectors.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3	Kihomac	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	201-500	371 contacts →
	Exact match “KIHOMAC supports customers across the Department of Defense and commercial industry.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4	Adams Communication & Engineering Technology Acet, INC	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	201-500	206 contacts →
	Exact match “ACET, Inc.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5	The Buffalo Group	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	201-500	153 contacts →
	Exact match “The Buffalo Group, a Jacobs company, is a professional services firm that has a small company culture with a big family feel.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6	GCI Incorporated	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	501-1,000	121 contacts →
	Exact match “GCI is an Engineering and IT Services company focusing on Data Analytics, Engineering, Cyber Operations, Targeting and Analysis, Operations Solutions and Training.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7	Crgt INC	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	1,001-5,000	118 contacts →
	Exact match “CRGT, a full-service government systems integrator, helps customers overcome difficult technology challenges to greatly enhance mission performance.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8	Game Plan Tech	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	51-200	82 contacts →
	Exact match “Game Plan Tech is a mission-driven technology firm with deep engineering expertise helping government teams access the technologies that drive innovation while increasing…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9	Blue SKY Innovators	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	51-200	80 contacts →
	Exact match “Blue Sky Innovators supports government and commercial customers in the definition and delivery of advanced technologies.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10	Navstar INC	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	51-200	73 contacts →
	Exact match “Who We Are: Since Navstar has earned a reputation for excellence by listening to our customers, being easy to work with, and delivering on our commitments.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11	CTG Federal	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	51-200	71 contacts →
	Exact match “CTG Federal, a Cohesive Technology Group company, is an SBA-certified small business that excels in servicing dozens of federal defense, intelligence, and civilian organizations…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12	Whiteboard Federal Technologies	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	51-200	64 contacts →
	Exact match “Whiteboard Federal Technologies is an engineer-focused company that specializes in building innovative software and systems to support the U.S.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13	Breakforth Solutions, Inc. ED Wosb	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	51-200	51 contacts →
	Exact match “BreakForth Solutions, Inc.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14	Veros Technologies, LLC	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	51-200	31 contacts →
	Exact match “Veros Technologies is an innovative small business based in Northern Virginia, focused on providing premier technical consulting services to private and public sector clients.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15	Stellarpeak Corp	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	51-200	24 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16	Intelligence Consulting Enterprise Solutions, Inc. Ices	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	51-200	21 contacts →
	Exact match “ICES is a leading small business provider of full life cycle systems integration and engineering services to the U.S.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17	Aspex, INC	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	11-50	19 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 · Oct 11, 2026 · View company records in RevenueBase
18	Celerapro, LLC Hubzone	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	11-50	14 contacts →
	Exact match “CeleraPro is led by Dr.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19	JGW Group	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	11-50	13 contacts →
	Exact match “The JGW Group, founded in 1979 by John G.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20	Torin A Realmone Company	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	51-200	12 contacts →
	Exact match “Torin, founded in 2014, focuses on non-traditional technical operations, Mission IT, analytical support & traditional operational support to U.S.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21	Level Up, LLC Washington, D.C	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	51-200	12 contacts →
	Exact match “Level Up provides leading edge expertise and advisory services to the defense and intelligence community.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22	Sabree Software Services, Inc. S3	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	11-50	10 contacts →
	Exact match “Sabree Software Services, Inc.(S3) is a full-service software firm headquartered in Northern Virginia.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23	G2sf Llc, A Wholly Owned Subsidiary Of Gunnison Consulting Group	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	51-200	10 contacts →
	Exact match “G2SF LLC, A Wholly Owned Subsidiary of the Gunnison Consulting Group.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24	Datasync Technologies, INC	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	11-50	9 contacts →
	Exact match “DataSync Technologies mission is to provide award winning, mission driven, cost effective consultants that provide the best possible value to our customer, by enhancing defense…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25	River Front Services, INC	Exact match	Reston, VA, United StatesHQ recorded Oct 11, 2026	1-10	5 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 11, 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 “defense systems engineering consultants”. 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 36 defense systems engineering consultants based in Reston, United States

See the full list, filter by size, metro and specialty, and access 424 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Defense systems engineering consultants based in Reston, United States at a glance

As of Oct 11, 2026

10.4%Verified-email coverage

113.0Average contacts per company

51-200Median size (employees)

Oct 11, 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

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 36 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 “defense systems engineering consultants” 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 424 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 October 11, 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.

Defense systems engineering consultants 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 “defense systems engineering consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many defense systems engineering consultants are there based in Reston, United States?

RevenueBase identified 36 company matches for defense systems engineering consultants associated with Reston, United States as of October 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?

Engility Corporation 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 defense systems engineering consultants?

Huntsville leads the United States with 116 company records, followed by San Diego (59) and Washington (53). Reston has 36.

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 424 professional contacts with verified work emails tracked across these 36 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 October 11, 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.