Company lists · Data refreshed September 2026

Top 25 Systems engineering consultants based in the United States

Name: Systems engineering consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 4,949 companies tracked

RevenueBase identified 4,949 company matches for systems engineering consultants associated with the United States as of September 2026 and tracks 156,286 professional contacts across them, including 55,009 with verified work emails. Houston is the largest hub.

This list covers company matches for systems engineering consultants associated with the 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 18, 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 18, 2026 How this list was built

4,949Companies

156,286Contacts tracked

55,009Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest systems engineering consultants based in the United States

Ranked by team size

Top 25 of 4,949 company matches for systems engineering consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 18, 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	Belcan	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 18, 2026	5,001-10,000	5,031 contacts →
	Exact match “Belcan, a Cognizant company is a global supplier of engineering, manufacturing & supply chain, workforce and government IT solutions to customers in the aerospace, defense…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
2	Power Engineers	Exact match	Hailey, ID, United StatesHQ recorded Sep 18, 2026	1,001-5,000	4,013 contacts →
	Exact match “POWER Engineers is now part of WSP.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
3	AEGIS	Exact match	Seattle, WA, United StatesHQ recorded Sep 18, 2026	n/a	2,352 contacts →
	Exact match “Aegis provides custom engineering and technology development services to a broad array of clients, including Fortune 100 companies, the U.S.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
4	ECS Group Of Companies	Exact match	Chantilly, VA, United StatesHQ recorded Sep 18, 2026	1,001-5,000	2,210 contacts →
	Exact match “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
5	Modern Technology Solutions, Inc. Mtsi	Exact match	Alexandria, VA, United StatesHQ recorded Sep 18, 2026	1,001-5,000	1,920 contacts →
	Exact match “Modern Technology Solutions, Inc.(MTSI) is a 100% employee-owned engineering services and technology solutions company delivering first-choice capabilities to solve problems of…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
6	Scientific Research Corporation	Exact match	Atlanta, GA, United StatesHQ recorded Sep 18, 2026	1,001-5,000	1,917 contacts →
	Exact match “Scientific Research Corporation is an advanced engineering company that was founded in 1988 to provide innovative solutions to the U.S.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
7	RCM Technologies, INC	Exact match	Pennsauken, NJ, United StatesHQ recorded Sep 18, 2026	1,001-5,000	1,838 contacts →
	Exact match “RCM Technologies, Inc.(Nasdaq: RCMT) is a business and technology solutions provider with world-class talent in key market segments.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
8	Bowman Consulting	Exact match	Reston, VA, United StatesHQ recorded Sep 18, 2026	1,001-5,000	1,666 contacts →
	Exact match “Headquartered in Reston, Virginia, Bowman is a national engineering services firm delivering infrastructure solutions to customers who own, develop and maintain the built…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
9	GEI Consultants, INC	Exact match	Woburn, MA, United StatesHQ recorded Sep 18, 2026	1,001-5,000	1,604 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
10	Dynetics, INC	Exact match	Huntsville, AL, United StatesHQ recorded Sep 18, 2026	10001+	1,532 contacts →
	Exact match “Leidos Dynetics provides responsive, cost-effective engineering, scientific, IT solutions to the national security, cybersecurity, space, and critical infrastructure sectors.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
11	Engility Corporation	Exact match	Reston, VA, United StatesHQ recorded Sep 18, 2026	5,001-10,000	1,245 contacts →
	Exact match “Engility Corporation is now part of SAIC, a premier technology integrator based in Reston, Virginia.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
12	VT Group VTG	Exact match	Alexandria, VA, United StatesHQ recorded Sep 18, 2026	1,001-5,000	1,168 contacts →
	Exact match “VTG delivers force modernization and digital transformation solutions that expand America’s competitive advantage in the modern battlespace.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
13	Radiance Technologies	Exact match	Huntsville, AL, United StatesHQ recorded Sep 18, 2026	1,001-5,000	1,049 contacts →
	Exact match “Radiance Technologies, Inc.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
14	ARI	Exact match	East Peoria, IL, United StatesHQ recorded Sep 18, 2026	1,001-5,000	979 contacts →
	Exact match “ARi is a global engineering firm headquartered in East Peoria, Illinois, USA offering services for: Embedded Software, Product Engineering, Manufacturing Engineering and Testing &…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
15	Mesa Associates, INC	Exact match	Madison, AL, United StatesHQ recorded Sep 18, 2026	1,001-5,000	897 contacts →
	Exact match “Mesa is a full service engineering, procurement, and construction management firm specializing in providing engineering services to electric utility, heavy industrial, and…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
16	Coffman Engineers	Exact match	Seattle, WA, United StatesHQ recorded Sep 18, 2026	501-1,000	859 contacts →
	Exact match “The right team is more than an advantage.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
17	DSA	Exact match	Trevose, PA, United StatesHQ recorded Sep 18, 2026	201-500	842 contacts →
	Exact match “Data Systems Analysts, Inc.(DSA) has been providing mission essential solutions for Defense, Federal Government, Academia, and Commercial customers since 1963.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
18	Teledyne Brown Engineering	Exact match	Huntsville, United StatesHQ recorded Sep 18, 2026	1,001-5,000	822 contacts →
	Exact match “Teledyne Brown Engineering is a leader in providing innovative systems engineering, integration, operations and advanced manufacturing solutions for defense, space, marine and…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
19	TSC	Exact match	Arlington, VA, United StatesHQ recorded Sep 18, 2026	501-1,000	808 contacts →
	Exact match “TSC is an employee-owned, high technology company engaged in providing engineering services and specialized products to U.S.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
20	Syska Hennessy Group	Exact match	New York, United StatesHQ recorded Sep 18, 2026	501-1,000	803 contacts →
	Exact match “Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
21	Arcfield	Exact match	Chantilly, VA, United StatesHQ recorded Sep 18, 2026	1,001-5,000	798 contacts →
	Exact match “Arcfield was purpose-built to protect the nation and its allies through innovations in systems engineering and integration, space and mission launch assurance, cybersecurity and…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
22	KAY And Associates, INC	Exact match	Buffalo Grove, IL, United StatesHQ recorded Sep 18, 2026	501-1,000	754 contacts →
	Exact match “Kay and Associates, Inc.(KAI) was established in 1960 by our founder Donald Kay to provide high quality, cost effective solutions in response to the need for engineering and…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
23	Sev1tech LLC	Exact match	Woodbridge, VA, United StatesHQ recorded Sep 18, 2026	501-1,000	688 contacts →
	Exact match “Sev1Tech is a leader in providing innovative technology, high-end engineering and mission solutions and services.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
24	Ghafari Associates	Exact match	Dearborn, MI, United StatesHQ recorded Sep 18, 2026	501-1,000	670 contacts →
	Exact match “An innovator since 1982, Ghafari embraces an integrated design approach to deliver solutions that synergize building operations, systems, and people.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
25	Linquest	Exact match	Herndon, VA, United StatesHQ recorded Sep 18, 2026	1,001-5,000	642 contacts →
	Exact match “LinQuest delivers performance excellence across the Air, Land, Sea, Space, and Cyberspace domains.” Recorded in the RevenueBase company graph · Sep 18, 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 “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 4,949 systems engineering consultants based in the United States

See the full list, filter by size, metro and specialty, and access 55,009 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Systems engineering consultants based in the United States at a glance

As of Sep 18, 2026

35.2%Verified-email coverage

31.6Average contacts per company

11-50Median size (employees)

2.3%Largest-city concentration · Houston

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

2,419

11-50

1,590

51-200

660

201-500

184

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 4,949 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 the United States whose business descriptions match “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 55,009 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 18, 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.

Systems engineering consultants by metro

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

How many systems engineering consultants are there based in the United States?

RevenueBase identified 4,949 company matches for systems engineering consultants associated with the 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?

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

Which city has the most systems engineering consultants?

Houston leads with 116 company records, followed by New York (88) and Huntsville (78).

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 55,009 professional contacts with verified work emails tracked across these 4,949 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 18, 2026.

Ready to reach these companies? Verified emails and direct dials for all 4,949 systems engineering consultants based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Systems engineering consultants by geography

Browse the directory

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.