Company lists · Data refreshed November 2026

Top 25 Prototype companies based in the United States

RevenueBase identified 848 company matches for prototype companies associated with the United States as of November 2026 and tracks 5,611 professional contacts across them, including 2,085 with verified work emails. San Francisco is the largest hub.

This list covers company matches for prototype companies 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 6, 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 6, 2026 How this list was built
848Companies
5,611Contacts tracked
2,085Verified emails
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The 25 largest prototype companies based in the United States

Ranked by team size
Top 25 of 848 company matches for prototype companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchCincinnati, TX, United StatesHQ recorded Nov 6, 2026201-500362 contacts →

Exact match

“When clients come to us for product design and development, they get a full range of technical expertise and laboratory resources, but they also get a team that’s relentless when…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMcminnville, OR, United StatesHQ recorded Nov 6, 202651-200209 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 6, 2026 · View company records in RevenueBase
3Exact matchRochester Hills, MI, United StatesHQ recorded Nov 6, 2026201-500136 contacts →

Exact match

“Michigan-based Prefix Corporation is a recognized leader in the creation of prototype designs, mock-ups, and full scale concept vehicles for the automotive and aviation industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchRochester Hills, MI, United StatesHQ recorded Nov 6, 2026501-1,000114 contacts →

Exact match

“3-Dimensional Services Group is a Michigan-based prototype and low-volume manufacturer of metal and plastic parts and assemblies, handling tool design through final assembly…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchDraper, UT, United StatesHQ recorded Nov 6, 2026501-1,00090 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 6, 2026 · View company records in RevenueBase
6Exact matchWilmington, MA, United StatesHQ recorded Nov 6, 202611-5077 contacts →

Exact match

“Fikst provides product design and engineering services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchColumbus, OH, United StatesHQ recorded Nov 6, 202651-20076 contacts →

Exact match

“Think bigger.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSan Diego, WA, United StatesHQ recorded Nov 6, 202651-20076 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBaltimore, MD, United StatesHQ recorded Nov 6, 202651-20074 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchCornelius, NC, United StatesHQ recorded Nov 6, 202651-20067 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 · Nov 6, 2026 · View company records in RevenueBase
11Exact matchOrlando, FL, United StatesHQ recorded Nov 6, 202651-20067 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 · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPulaski, WI, United StatesHQ recorded Nov 6, 202651-20063 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 · Nov 6, 2026 · View company records in RevenueBase
13Exact matchRochester, NY, United StatesHQ recorded Nov 6, 202611-5059 contacts →

Exact match

“KEK Design is a full-service industrial design and product development consultancy located in Rochester, New York.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchEast Syracuse, PA, United StatesHQ recorded Nov 6, 202651-20057 contacts →

Exact match

“CADimensions offers 3D printing, industrial design, simulation, training and other engineering and manufacturing services for anyone with an idea.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchNewark, CA, United StatesHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“Acorn Product Development is based in Silicon Valley with design centers in Boston, Denver, and China.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLoveland, OH, United StatesHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“At Prodigy, we’re more than a product design and development firm – we are the driving force behind the innovative products that shape the future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCampbell, CA, United StatesHQ recorded Nov 6, 202611-5052 contacts →

Exact match

“FusionDesign is a full service product development company located in Silicon Valley.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchVista, MN, United StatesHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“NOVO provides contract product development services from concept through pilot manufacturing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMorgan Hill, CA, United StatesHQ recorded Nov 6, 202611-5046 contacts →

Exact match

“Through superior customer service, quick quote response time, and rapid turn of prototype and production parts of exceptional quality, K.R.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLake Zurich, IL, United StatesHQ recorded Nov 6, 202611-5045 contacts →

Exact match

“Designcraft offers specialty services for professional companies engaged in Prototyping, New Product Development and Rapid Manufacturing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchPortland, OR, United StatesHQ recorded Nov 6, 202611-5044 contacts →

Exact match

“Our Mission: Exploration Sherpa Design is a team of engineers, designers, and machinists who are dedicated to helping your business push the mechanical and technological envelope.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSanta Clara, CA, United StatesHQ recorded Nov 6, 202611-5042 contacts →

Exact match

“JWP Manufacturing is Silicon Valley's premier provider of complete manufacturing solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchNorth Royalton, OH, United StatesHQ recorded Nov 6, 202651-20039 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLynchburg, United StatesHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“AMTI is a leader in “Product-to-Market” services providing concept stage product development, rapid response proto-typing, manufacturing and distribution services for technology…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCincinnati, OH, United StatesHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“3D Color partners with designers, marketers and brand builders to bring packaged goods to life, offering advanced 2D/3D prototyping, exceptional comp production, custom color…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 848 prototype companies based in the United States

See the full list, filter by size, metro and specialty, and access 2,085 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Prototype companies based in the United States at a glance

As of Nov 6, 2026
37.2%Verified-email coverage
6.6Average contacts per company
1-10Median size (employees)
2.6%Largest-city concentration · San Francisco
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
606
11-50
189
51-200
44
201-500
5
501-1,000
2

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 848 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 “prototype companies” 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 2,085 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 6, 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 “prototype companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many prototype companies are there based in the United States?

RevenueBase identified 848 company matches for prototype companies 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?

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

Which city has the most prototype companies?

San Francisco leads with 22 company records, followed by Austin (19) and New York (18).

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 2,085 professional contacts with verified work emails tracked across these 848 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 6, 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.