Company lists · Data refreshed September 2026

Top 25 Prototype manufacturers based in the United States

Name: Prototype manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,234 companies tracked

RevenueBase identified 1,234 company matches for prototype manufacturers associated with the United States as of September 2026 and tracks 9,679 professional contacts across them, including 3,136 with verified work emails. New York is the largest hub.

This list covers company matches for prototype manufacturers 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 17, 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 17, 2026 How this list was built

1,234Companies

9,679Contacts tracked

3,136Verified emails

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The 25 largest prototype manufacturers based in the United States

Ranked by team size

Top 25 of 1,234 company matches for prototype manufacturers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Carbon	Exact match	Redwood City, CA, United StatesHQ recorded Sep 17, 2026	201-500	423 contacts →
	Exact match “The Idea-to-Production Platform Rapidly design, develop and scale production of better products in less time with the Carbon platform.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Markforged	Exact match	Waltham, MA, United StatesHQ recorded Sep 17, 2026	201-500	273 contacts →
	Exact match “At Markforged, we are on a mission to unlock the next 10x innovation in design and manufacturing.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	GSC	Exact match	Germantown, WI, United StatesHQ recorded Sep 17, 2026	51-200	196 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 · Sep 17, 2026 · View company records in RevenueBase
4	Quickparts	Exact match	Seattle, WA, United StatesHQ recorded Sep 17, 2026	201-500	182 contacts →
	Exact match “Custom Prototypes, 3D Printing, and On-Demand Parts Manufacturing.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	FMT	Exact match	Findlay, OH, United StatesHQ recorded Sep 17, 2026	51-200	153 contacts →
	Exact match “FMT is your strategic partner in high-quality plastic parts manufacturing.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Lake AIR Products	Exact match	Minneapolis, MN, United StatesHQ recorded Sep 17, 2026	51-200	144 contacts →
	Exact match “Your Advanced Manufacturing Partner.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Essai, INC	Exact match	Fremont, CA, United StatesHQ recorded Sep 17, 2026	51-200	123 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Complete Prototype Services	Exact match	Clinton Township, MI, United StatesHQ recorded Sep 17, 2026	51-200	119 contacts →
	Exact match “CPS is an ISO certified manufacturer of prototype and limited production parts and tooling for a variety of industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	3-Dimensional Services Group	Exact match	Rochester Hills, MI, United StatesHQ recorded Sep 17, 2026	501-1,000	109 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 · Sep 17, 2026 · View company records in RevenueBase
10	Padt, INC	Exact match	Tempe, AZ, United StatesHQ recorded Sep 17, 2026	51-200	87 contacts →
	Exact match “PADT provides mechanical engineering products and services to companies that design and manufacture physical products.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	KEY Tech INC	Exact match	Baltimore, MD, United StatesHQ recorded Sep 17, 2026	51-200	72 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 · Sep 17, 2026 · View company records in RevenueBase
12	Bravo Team Engineering Design & Fabrication	Exact match	Cornelius, NC, United StatesHQ recorded Sep 17, 2026	51-200	63 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 · Sep 17, 2026 · View company records in RevenueBase
13	Viable Engineering Solutions	Exact match	Orlando, FL, United StatesHQ recorded Sep 17, 2026	51-200	62 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 · Sep 17, 2026 · View company records in RevenueBase
14	Rapid, A Proto Labs Company	Exact match	Nashua, NH, United StatesHQ recorded Sep 17, 2026	201-500	56 contacts →
	Exact match “Rapid was acquired by Protolabs and rebranded Rapid, a Protolabs Company on 12/1/2017.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	KEK Design	Exact match	Rochester, NY, United StatesHQ recorded Sep 17, 2026	11-50	55 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 · Sep 17, 2026 · View company records in RevenueBase
16	Cadimensions, INC	Exact match	East Syracuse, NY, United StatesHQ recorded Sep 17, 2026	51-200	53 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 · Sep 17, 2026 · View company records in RevenueBase
17	Whiteclouds	Exact match	Uintah, UT, United StatesHQ recorded Sep 17, 2026	51-200	51 contacts →
	Exact match “Now hiring!” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Duggan Manufacturing	Exact match	Shelby Township, MI, United StatesHQ recorded Sep 17, 2026	51-200	50 contacts →
	Exact match “We elevate and accelerate prototyping to production, but our ability to take on challenges is at the heart of everything we do.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Uptive Manufacturing	Exact match	Libertyville, IL, United StatesHQ recorded Sep 17, 2026	51-200	49 contacts →
	Exact match “You may also know us as GoProto, RE3DTECH, Phoenix Proto Technologies and/or Stanfordville Machining and Manufacturing.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Fusion Design	Exact match	Campbell, CA, United StatesHQ recorded Sep 17, 2026	11-50	47 contacts →
	Exact match “FusionDesign is a full service product development company located in Silicon Valley.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Schultes Precision Manufacturing, INC	Exact match	Buffalo Grove, IL, United StatesHQ recorded Sep 17, 2026	51-200	47 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Omega Plastics, INC	Exact match	Clinton Township, MI, United StatesHQ recorded Sep 17, 2026	51-200	45 contacts →
	Exact match “Omega Plastics is a leader in tooling and injection molding solutions for prototype/product development through low to medium volume production applications.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Designcraft, INC	Exact match	Lake Zurich, IL, United StatesHQ recorded Sep 17, 2026	11-50	45 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 · Sep 17, 2026 · View company records in RevenueBase
24	KR Anderson, Inc. Krafab	Exact match	Morgan Hill, CA, United StatesHQ recorded Sep 17, 2026	11-50	45 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 · Sep 17, 2026 · View company records in RevenueBase
25	Sherpa Design	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	11-50	44 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 · Sep 17, 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 “prototype manufacturers”. 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 1,234 prototype manufacturers based in the United States

See the full list, filter by size, metro and specialty, and access 3,136 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Prototype manufacturers based in the United States at a glance

As of Sep 17, 2026

32.4%Verified-email coverage

7.8Average contacts per company

1-10Median size (employees)

2.0%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

879

11-50

270

51-200

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 1,234 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 manufacturers” 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 3,136 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 17, 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 manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 1,234 company matches for prototype manufacturers 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?

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

Which city has the most prototype manufacturers?

New York leads with 25 company records, followed by Chicago (18) and Los Angeles (17).

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 3,136 professional contacts with verified work emails tracked across these 1,234 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 17, 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.