Company lists · Data refreshed October 2026

Top 25 Engineering prototyping services based in the United States

Name: Engineering prototyping services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 1,603 companies tracked

RevenueBase identified 1,603 company matches for engineering prototyping services associated with the United States as of October 2026 and tracks 13,017 professional contacts across them, including 3,990 with verified work emails. San Diego is the largest hub.

This list covers company matches for engineering prototyping 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 October 12, 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 12, 2026 How this list was built

1,603Companies

13,017Contacts tracked

3,990Verified emails

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The 25 largest engineering prototyping services based in the United States

Ranked by team size

Top 25 of 1,603 company matches for engineering prototyping services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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	Ascentec Engineering, LLC	Exact match	Tualatin, OR, United StatesHQ recorded Oct 12, 2026	201-500	292 contacts →
	Exact match “Ascentec Engineering was founded in 2001 by a team of process and manufacturing engineers all with a solid background in electronics manufacturing processes.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	GSC	Exact match	Germantown, WI, United StatesHQ recorded Oct 12, 2026	51-200	210 contacts →
	Exact match “GSC provides comprehensive engineering solutions, with a seamless, integrated workflow, for every aspect of product development – design, simulation, 3D printing, communication…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Andrews Cooper	Exact match	Mcminnville, OR, United StatesHQ recorded Oct 12, 2026	51-200	207 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 · Oct 12, 2026 · View company records in RevenueBase
4	Quickparts	Exact match	Seattle, WA, United StatesHQ recorded Oct 12, 2026	201-500	184 contacts →
	Exact match “Custom Prototypes, 3D Printing, and On-Demand Parts Manufacturing.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	Mecha INC	Exact match	Raleigh, NC, United StatesHQ recorded Oct 12, 2026	n/a	156 contacts →
	Exact match “Mecha specializes in the design, analysis, and manufacturing of metal products for the embedded computer industry.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Lake AIR Products	Exact match	Minneapolis, MN, United StatesHQ recorded Oct 12, 2026	51-200	145 contacts →
	Exact match “Your Advanced Manufacturing Partner.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	DFF Corporation, A Cadrex Company	Exact match	Agawam, MA, United StatesHQ recorded Oct 12, 2026	201-500	142 contacts →
	Exact match “In 1969, DFF began serving customers with quality development and low-quantity production services-on time and at competitive prices.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Essai, INC	Exact match	Fremont, CA, United StatesHQ recorded Oct 12, 2026	51-200	127 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	3-Dimensional Services Group	Exact match	Rochester Hills, MI, United StatesHQ recorded Oct 12, 2026	501-1,000	110 contacts →
	Exact match “The 3-Dimensional Services Group specializes in manufacturing metal and plastic prototype and low-volume production parts and assemblies.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Novus Labs	Exact match	Hillsboro, OR, United StatesHQ recorded Oct 12, 2026	51-200	102 contacts →
	Exact match “Novus Labs is a new kind of solutions provider.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Technique INC	Exact match	Jackson, MI, United StatesHQ recorded Oct 12, 2026	201-500	94 contacts →
	Exact match “High-Speed Prototypes and low volume production - Stampings, Tubing and Welding Technique, Inc.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	VPI Technology, A Division Of Ludlum Measurements, INC	Exact match	Draper, UT, United StatesHQ recorded Oct 12, 2026	501-1,000	87 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 · Oct 12, 2026 · View company records in RevenueBase
13	RE Build Fikst	Exact match	Wilmington, MA, United StatesHQ recorded Oct 12, 2026	11-50	78 contacts →
	Exact match “Fikst provides product design and engineering services.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Aimtron Corporation	Exact match	Palatine, IL, United StatesHQ recorded Oct 12, 2026	201-500	78 contacts →
	Exact match “Aimtron Corporation specializes in the Electronic Manufacturing Services since 2009.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Priority Designs	Exact match	Columbus, OH, United StatesHQ recorded Oct 12, 2026	51-200	74 contacts →
	Exact match “Think bigger.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Simplexity Product Development, INC	Exact match	San Diego, CA, United StatesHQ recorded Oct 12, 2026	51-200	74 contacts →
	Exact match “Simplexity is a leading product development engineering firm specializing in custom design, next-generation products, robotics, workflow automation, and production test tools.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Cathx Medical. A Zeus Company	Exact match	San Jose, CA, United StatesHQ recorded Oct 12, 2026	11-50	73 contacts →
	Exact match “CathX Medical (A Zeus Company) offers medical device companies and OEMs a single source for design engineering services, rapid prototyping, manufacturing, and full or…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	KEY Tech INC	Exact match	Baltimore, MD, United StatesHQ recorded Oct 12, 2026	51-200	70 contacts →
	Exact match “Founded in 1998, Key Tech is a high-tech product design and prototyping company located in Baltimore, Maryland.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	Bravo Team Engineering Design & Fabrication	Exact match	Cornelius, NC, United StatesHQ recorded Oct 12, 2026	51-200	66 contacts →
	Exact match “Elevate Your Engineering Vision with Bravo Team LLC Are you seeking innovative solutions to turn your engineering dreams into reality?” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Viable Engineering Solutions	Exact match	Orlando, FL, United StatesHQ recorded Oct 12, 2026	51-200	65 contacts →
	Exact match “The Innovation Center by Viable Engineering Solutions is a world-class industrial rapid solution concept-to-completion center for the industrial market.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Warren Industries, INC	Exact match	Clinton Twp., MI, United StatesHQ recorded Oct 12, 2026	51-200	64 contacts →
	Exact match “CNC Machining, Prototype to Production” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	MCL Industries, INC	Exact match	Pulaski, WI, United StatesHQ recorded Oct 12, 2026	51-200	64 contacts →
	Exact match “MCL Industries is a full-service engineering and manufacturing partner to customers across the United States, serving OEMs and product developers in industries such as…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Circuithub	Exact match	South Deerfield, MA, United StatesHQ recorded Oct 12, 2026	51-200	63 contacts →
	Exact match “On-demand manufacturing from 1 to units.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Acro Industries, INC	Exact match	Rochester, NY, United StatesHQ recorded Oct 12, 2026	201-500	62 contacts →
	Exact match “ISO 9001:2015 Registered ISO/ITAR & TS 16949 Compliant AS9100 – Supported by our Quality Systems Manual NAICS 332116,332312,332710,541330,541490 ISO 14001 – Pursuing registration…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Maine Machine Products CO	Exact match	South Paris, ME, United StatesHQ recorded Oct 12, 2026	51-200	62 contacts →
	Exact match “Maine Machine Products Company is a squ.” Recorded in the RevenueBase company graph · Oct 12, 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 “engineering prototyping services”. 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 1,603 engineering prototyping services based in the United States

See the full list, filter by size, metro and specialty, and access 3,990 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Engineering prototyping services based in the United States at a glance

As of Oct 12, 2026

30.7%Verified-email coverage

8.1Average contacts per company

1-10Median size (employees)

1.6%Largest-city concentration · San Diego

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

1,077

11-50

377

51-200

120

201-500

501-1,000

1,001-5,000

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 1,603 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 “engineering prototyping 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 3,990 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 12, 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.

Engineering prototyping services by metro

Engineering prototyping services in San Diego26

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

How many engineering prototyping services are there based in the United States?

RevenueBase identified 1,603 company matches for engineering prototyping services associated with the 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?

Ascentec Engineering, LLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most engineering prototyping services?

San Diego leads with 26 company records, followed by Chicago (21) and San Jose (20).

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 3,990 professional contacts with verified work emails tracked across these 1,603 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 12, 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.