Company lists · Data refreshed September 2026

Top 25 Machine design companies based in the United States

Name: Machine design companies 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 2,846 companies tracked

RevenueBase identified 2,846 machine design companies headquartered in the United States as of September 2026 and tracks 43,773 professional contacts across them, including 13,095 with verified work emails. San Diego is the largest hub.

This list covers machine design companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

2,846Companies

43,773Contacts tracked

13,095Verified emails

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The 25 largest machine design companies based in the United States

Ranked by team size

Top 25 of 2,846 machine design companies based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to machine design companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Plexus Corp	Indirect evidence	Neenah, NC, United StatesHQ checked Sep 17, 2026	10001+	8,149 contacts →
	Indirect evidence “Since 1979, Plexus has been partnering with companies to create the products that build a better world.” Source: RevenueBase Database · checked Sep 17, 2026
2	Moldtek Technologies Limited	Indirect evidence	Cumming, GA, United StatesHQ checked Sep 17, 2026	501-1,000	1,107 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
3	Janicki	Indirect evidence	Sedro-woolley, WA, United StatesHQ checked Sep 17, 2026	1,001-5,000	914 contacts →
	Indirect evidence “Janicki is a privately-owned engineering and manufacturing company with locations in Washington and Utah.” Source: RevenueBase Database · checked Sep 17, 2026
4	Nelson Global	Partial evidence	Stoughton, WI, United StatesHQ checked Sep 17, 2026	1,001-5,000	879 contacts →
	Partial evidence “Nelson Global designs, manufactures, and distributes custom solutions for customers across crucial industries worldwide.” Source: RevenueBase Database · checked Sep 17, 2026
5	RFA Engineering	Indirect evidence	Eden Prairie, MN, United StatesHQ checked Sep 17, 2026	201-500	468 contacts →
	Indirect evidence “RFA serves 100's of clients ranging in size from Fortune 500 to entrepreneurial start-ups.” Source: RevenueBase Database · checked Sep 17, 2026
6	Electroimpact	Indirect evidence	Mukilteo, WA, United StatesHQ checked Sep 17, 2026	201-500	443 contacts →
	Indirect evidence “Electroimpact is a highly experienced provider of factory automation and tooling solutions.” Source: RevenueBase Database · checked Sep 17, 2026
7	RCO Engineering	Indirect evidence	Roseville, MI, United StatesHQ checked Sep 17, 2026	501-1,000	438 contacts →
	Indirect evidence “Specializing in low-volume manufacturing that Tier 1 suppliers avoid, we offer complete program management under one roof, including emergency tooling and parts, large program…” Source: RevenueBase Database · checked Sep 17, 2026
8	Trimech	Partial evidence	Glen Allen, VA, United StatesHQ checked Sep 17, 2026	201-500	359 contacts →
	Partial evidence “The TriMech Group is a leading provider of engineering solutions, specializing in advanced design, manufacturing, and automation technologies.” Source: RevenueBase Database · checked Sep 17, 2026
9	Artiflex Manufacturing, INC	Partial evidence	Grand Rapids, MI, United StatesHQ checked Sep 17, 2026	501-1,000	324 contacts →
	Partial evidence “ArtiFlex Manufacturing is a global leader in design, tooling, automation, past model service, factory assist, and low-volume tooling and production solutions.” Source: RevenueBase Database · checked Sep 17, 2026
10	Icon Mechanical	Partial evidence	Granite City, IL, United StatesHQ checked Sep 17, 2026	201-500	293 contacts →
	Partial evidence “icon Mechanical is a full service mechanical construction and engineering firm specializing in the design, installation, modification and on-going service of process piping…” Source: RevenueBase Database · checked Sep 17, 2026
11	Koops Automation Systems	Strong evidence	Holland, MI, United StatesHQ checked Sep 17, 2026	201-500	277 contacts →
	Strong evidence “Specializing in factory automation systems, Koops designs and builds innovative special machines and automated equipment for leading, world-class manufacturers across a broad…” Source: RevenueBase Database · checked Sep 17, 2026
12	Ascentec Engineering, LLC	Indirect evidence	Tualatin, OR, United StatesHQ checked Sep 17, 2026	201-500	272 contacts →
	Indirect evidence “Ascentec Engineering was founded in 2001 by a team of process and manufacturing engineers all with a solid background in electronics manufacturing processes.” Source: RevenueBase Database · checked Sep 17, 2026
13	EWI	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 17, 2026	51-200	256 contacts →
	Indirect evidence “EWI empowers industry leaders to overcome complex manufacturing challenges and integrate new processes to bring products to market more quickly and efficiently.” Source: RevenueBase Database · checked Sep 17, 2026
14	Penn United Technologies, INC	Indirect evidence	Cabot, PA, United StatesHQ checked Sep 17, 2026	501-1,000	254 contacts →
	Indirect evidence “Penn United provides MANUFACTURING SOLUTIONS for customers needing precision components or precision-assembled products.” Source: RevenueBase Database · checked Sep 17, 2026
15	Design Systems, INC	Indirect evidence	Farmington Hills, MI, United StatesHQ checked Sep 17, 2026	201-500	243 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
16	Major Tool & Machine	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 17, 2026	201-500	233 contacts →
	Partial evidence “Established in 1946, Major Tool & Machine started business as a custom job shop specializing in the production of tooling and aircraft ground support equipment and has since…” Source: RevenueBase Database · checked Sep 17, 2026
17	Morton Industries	Indirect evidence	Morton, IL, United StatesHQ checked Sep 17, 2026	501-1,000	227 contacts →
	Indirect evidence “Morton Industries is a leading manufacturer of Fabricated Tube and Sheet Metal Assemblies.” Source: RevenueBase Database · checked Sep 17, 2026
18	ARCH	Indirect evidence	Bloomfield Hills, MI, United StatesHQ checked Sep 17, 2026	501-1,000	209 contacts →
	Indirect evidence “American Manufacturing, Serving the World We are driven by precision.” Source: RevenueBase Database · checked Sep 17, 2026
19	Andrews Cooper	Indirect evidence	Mcminnville, OR, United StatesHQ checked Sep 17, 2026	51-200	199 contacts →
	Indirect evidence “Partner with AC to Supercharge Your Technology Development Andrews Cooper is an engineering services firm in the Pacific Northwest specializing in highly complex technology…” Source: RevenueBase Database · checked Sep 17, 2026
20	GSC	Partial evidence	Germantown, WI, United StatesHQ checked Sep 17, 2026	51-200	196 contacts →
	Partial evidence “GSC provides comprehensive engineering solutions, with a seamless, integrated workflow, for every aspect of product development – design, simulation, 3D printing, communication…” Source: RevenueBase Database · checked Sep 17, 2026
21	Ryzen Solutions	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 17, 2026	201-500	169 contacts →
	Indirect evidence “Since Ryzen Solutions has become a trusted provider to Silicon Valley’s growing product development community.” Source: RevenueBase Database · checked Sep 17, 2026
22	Mecha INC	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 17, 2026	n/a	157 contacts →
	Partial evidence “Mecha specializes in the design, analysis, and manufacturing of metal products for the embedded computer industry.” Source: RevenueBase Database · checked Sep 17, 2026
23	Emerald Technologies	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 17, 2026	501-1,000	155 contacts →
	Indirect evidence “At Emerald Technologies, we provide our customers with world-class service experiences built on strong partnerships, flexible manufacturing capabilities, and expert engineering…” Source: RevenueBase Database · checked Sep 17, 2026
24	Waltonen Engineering	Partial evidence	Warren, MI, United StatesHQ checked Sep 17, 2026	51-200	154 contacts →
	Partial evidence “Established in 1957, Waltonen is a full-service design and engineering company with locations in Warren and Troy, Michigan.” Source: RevenueBase Database · checked Sep 17, 2026
25	General Stamping & Metalworks	Indirect evidence	South Bend, IN, United StatesHQ checked Sep 17, 2026	201-500	154 contacts →
	Indirect evidence “General Stamping & Metalworks (GSM) is a leading provider of manufacturing solutions to progressive OEMs worldwide.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: machine design companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names machine design companies.
Partial evidence: Its own public description names part of machine design companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name machine design companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 2,846 machine design companies based in the United States

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Machine design companies based in the United States at a glance

As of Sep 17, 2026

29.9%Verified-email coverage

15.4Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · San Diego

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

1,598

11-50

845

51-200

320

201-500

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 2,846 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among machine design companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “machine design companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names machine design companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among machine design companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 13,095 across the full list. 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.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Machine design companies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names machine design companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many machine design companies are there based in the United States?

RevenueBase identified 2,846 machine design companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Plexus Corp, headquartered in Raleigh, tops this list with the largest team on record.

Which city has the most machine design companies?

San Diego leads with 35 headquartered companies, followed by Houston (34) and Austin (28).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 13,095 verified decision-maker contacts tracked across these 2,846 companies.

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 Smart Search, 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.