Company lists · Data refreshed November 2026

Top 25 Test system development engineering services based in the United States

RevenueBase identified 239 company matches for test system development engineering services associated with the United States as of November 2026 and tracks 4,806 professional contacts across them, including 1,462 with verified work emails. San Jose is the largest hub.

This list covers company matches for test system development engineering services 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 November 2, 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 Nov 2, 2026 How this list was built
239Companies
4,806Contacts tracked
1,462Verified emails
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The 25 largest test system development engineering services based in the United States

Ranked by team size
Top 25 of 239 company matches for test system development engineering services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 2, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchFremont, CA, United StatesHQ recorded Nov 2, 2026201-500587 contacts →

Exact match

“FM Industries, Inc.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
2Exact matchMiddletown, RI, United StatesHQ recorded Nov 2, 2026501-1,000373 contacts →

Exact match

“Over 40 years old and headquartered in Rhode Island near Newport's First Beach, SEACORP employs the highest quality people to provide vital information technology and engineering…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
3Exact matchLos Angeles, TX, United StatesHQ recorded Nov 2, 202651-200231 contacts →

Exact match

“Engineering teams rely on Nominal to execute tests, analyze results in real time, collaborate across disciplines, and deliver resilient hardware in days, not months.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
4Exact matchSanta Clara, CA, United StatesHQ recorded Nov 2, 2026201-500220 contacts →

Exact match

“GRL is the world’s leading Engineering Services firm helping engineers solve difficult hardware design and validation challenges in adopting digital interface technologies.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
5Exact matchMcminnville, OR, United StatesHQ recorded Nov 2, 202651-200207 contacts →

Exact match

“Partner with AC to Supercharge Your Technology Development Andrews Cooper is an engineering services firm in the Pacific Northwest specializing in highly complex technology…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
6Exact matchMelbourne, FL, United StatesHQ recorded Nov 2, 2026501-1,000161 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
7Exact matchWarren, MI, United StatesHQ recorded Nov 2, 202651-200158 contacts →

Exact match

“Established in 1957, Waltonen is a full-service design and engineering company with locations in Warren and Troy, Michigan.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
8Exact matchFrederick, MD, United StatesHQ recorded Nov 2, 202651-200146 contacts →

Exact match

“Based in Frederick, MD, Nashville, NC, and Branford, CT, ACDi is an integral resource to companies who need a trusted partner for dynamic electronics manufacturing, engineering…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
9Exact matchMaple Grove, MN, United StatesHQ recorded Nov 2, 2026201-500144 contacts →

Exact match

“Circuit Check is a leading provider of automated test systems and test fixtures for complex electronic products for the automotive, military/aerospace, medical, industrial, and…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
10Exact matchPlymouth, MI, United StatesHQ recorded Nov 2, 202651-200137 contacts →

Exact match

“RedViking, a Lincoln Electric Company, delivers advanced manufacturing and test solutions that improve efficiency, flexibility, and quality for customers across aerospace…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
11Exact matchHuntsville, AL, United StatesHQ recorded Nov 2, 202651-200105 contacts →

Exact match

“Strata-G Solutions provides unrivaled competency in test-system engineering to both commercial and military customers.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
12Exact matchHillsboro, OR, United StatesHQ recorded Nov 2, 202651-200102 contacts →

Exact match

“Novus Labs is a new kind of solutions provider.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
13Exact matchSan Jose, CA, United StatesHQ recorded Nov 2, 202651-200101 contacts →

Exact match

“RAAD Systems provides integrated engineering solutions for organizations developing complex products and systems.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
14Exact matchSan Jose, CA, United StatesHQ recorded Nov 2, 202611-5092 contacts →

Exact match

“Qmax Systems has been a trusted partner for companies that need to bring complex electronic products to life, from concept to production-ready hardware.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
15Exact matchRancho Dominguez, CA, United StatesHQ recorded Nov 2, 202651-20090 contacts →

Exact match

“Motivo means reason.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
16Exact matchDraper, UT, United StatesHQ recorded Nov 2, 2026501-1,00087 contacts →

Exact match

“VPI Technology VPI is a high-tech company that provides premium professional services in the design, engineering, testing, and manufacturing of new technology.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
17Exact matchIrving, TX, United StatesHQ recorded Nov 2, 202611-5070 contacts →

Exact match

“At G Systems, we work with engineers and program managers in the aerospace, defense, and energy industries to create reliable test and measurement solutions.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
18Exact matchDayton, OH, United StatesHQ recorded Nov 2, 202651-20067 contacts →

Exact match

“For more than 40 years, we’ve been offering clients end-to-end, flexible manufacturing, integration and test operations worldwide.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
19Exact matchTucson, AZ, United StatesHQ recorded Nov 2, 202651-20066 contacts →

Exact match

“TES-i is an agile full-service engineering firm providing in-house concept, requirements, design, development, prototyping, manufacturing, testing, validation, verification, and…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
20Exact matchCincinnati, OH, United StatesHQ recorded Nov 2, 202651-20060 contacts →

Exact match

“Essig Research is a leading provider of high-tech engineering and manufacturing services.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
21Exact matchIrving, TX, United StatesHQ recorded Nov 2, 202651-20050 contacts →

Exact match

“Who we are Srushty Global Solutions provides engineering solutions, right from the concept design to product launch, covering engineering design, product validation, prototyping…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
22Exact matchOgden, UT, United StatesHQ recorded Nov 2, 202651-20049 contacts →

Exact match

“Our mission is to provide superior engineering and management services for software and hardware integration solutions that surpass customer expectations.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
23Exact matchGrand Rapids, MI, United StatesHQ recorded Nov 2, 202611-5044 contacts →

Exact match

“Array of Engineers delivers embedded software, model-based development, hardware and firmware design, automated testing solutions, and more for various industries.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
24Exact matchEl Segundo, CA, United StatesHQ recorded Nov 2, 202611-5043 contacts →

Exact match

“We are an engineering research and development firm specializing in custom electronics and end-to-end electronic systems.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
25Exact matchBillerica, MA, United StatesHQ recorded Nov 2, 202611-5037 contacts →

Exact match

“BCO, Inc.– Automated Test Systems Specializes in custom solutions for test, measurement and control systems.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase

Showing 25 of 239 test system development engineering services based in the United States

See the full list, filter by size, metro and specialty, and access 1,462 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Test system development engineering services based in the United States at a glance

As of Nov 2, 2026
30.4%Verified-email coverage
20.1Average contacts per company
11-50Median size (employees)
3.3%Largest-city concentration · San Jose
Nov 2, 2026Page data refreshed

Companies by employee count

1-10
117
11-50
85
51-200
28
201-500
5
501-1,000
4

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 239 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 “test system development engineering services” 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 1,462 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 November 2, 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.

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 “test system development engineering services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many test system development engineering services are there based in the United States?

RevenueBase identified 239 company matches for test system development engineering services associated with the United States as of November 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?

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

Which city has the most test system development engineering services?

San Jose leads with 8 company records, followed by Austin (5) and Colorado Springs (4).

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 1,462 professional contacts with verified work emails tracked across these 239 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 November 2, 2026.

Ready to reach these companies? Verified emails and direct dials for all 239 test system development engineering services based in the United States. Start with a free account, no credit card.

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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.