Company lists · Data refreshed September 2026

Top 25 Custom machinery manufacturers based in the United States

Name: Custom machinery 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 30, 2026 2,218 companies tracked

RevenueBase identified 2,218 custom machinery manufacturers headquartered in the United States as of September 2026 and tracks 31,735 professional contacts across them, including 10,180 with verified work emails. Rochester is the largest hub.

This list covers custom machinery manufacturers 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 30, 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 30, 2026 86% judged on-target in blind review

2,218Companies

31,735Contacts tracked

10,180Verified emails

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The 25 largest custom machinery manufacturers based in the United States

Ranked by team size

Top 25 of 2,218 custom machinery manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to custom machinery manufacturers: 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	GRAY	Indirect evidence	Lexington, KY, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,477 contacts →
	Indirect evidence “Founded by James Norris and Lois Howard Gray in 1960, Gray is a family-owned, fully integrated industrial design-builder specializing in engineering, architecture, construction…” Source: RevenueBase Database · checked Sep 30, 2026
2	Haas Automation, INC	Partial evidence	Oxnard, CA, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,138 contacts →
	Partial evidence “Haas Automation is the largest machine tool builder in the western world, manufacturing a complete line of CNC vertical machining centers, horizontal machining centers, CNC lathes…” Source: RevenueBase Database · checked Sep 30, 2026
3	Convergix Automation Solutions	Partial evidence	Auburn Hills, MI, United StatesHQ checked Sep 30, 2026	501-1,000	942 contacts →
	Partial evidence “Convergix Automation Solutions designs, engineers and integrates hardware and software to automate its customers' operations.” Source: RevenueBase Database · checked Sep 30, 2026
4	Nelson Global	Strong evidence	Stoughton, WI, United StatesHQ checked Sep 30, 2026	1,001-5,000	879 contacts →
	Strong evidence “Nelson Global designs, manufactures, and distributes custom solutions for customers across crucial industries worldwide.” Source: RevenueBase Database · checked Sep 30, 2026
5	Electroimpact	Indirect evidence	Mukilteo, WA, United StatesHQ checked Sep 30, 2026	201-500	443 contacts →
	Indirect evidence “Electroimpact is a highly experienced provider of factory automation and tooling solutions.” Source: RevenueBase Database · checked Sep 30, 2026
6	R&e Automated	Indirect evidence	Bruce Township, MI, United StatesHQ checked Sep 30, 2026	501-1,000	383 contacts →
	Indirect evidence “R&E Automated Systems is an internationally recognized leader in automation, engineering and field service management.” Source: RevenueBase Database · checked Sep 30, 2026
7	Paslin	Indirect evidence	Warren, MI, United StatesHQ checked Sep 30, 2026	501-1,000	359 contacts →
	Indirect evidence “Since 1937, Paslin has been a leading innovator in the concept, design, construction and deployment of manufacturing assembly and automation systems.” Source: RevenueBase Database · checked Sep 30, 2026
8	Artiflex Manufacturing, INC	Indirect evidence	Grand Rapids, MI, United StatesHQ checked Sep 30, 2026	501-1,000	324 contacts →
	Indirect 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 30, 2026
9	Cincinnati Incorporated	Strong evidence	Harrison, OH, United StatesHQ checked Sep 30, 2026	201-500	309 contacts →
	Strong evidence “Cincinnati Incorporated (CI) is a U.S-based, build-to-order machine tool manufacturer with over 120 years in the industry.” Source: RevenueBase Database · checked Sep 30, 2026
10	RRR Development Co., INC	Partial evidence	North Canton, OH, United StatesHQ checked Sep 30, 2026	51-200	308 contacts →
	Partial evidence “Development is a machining company that offers high quality, precision machined parts.” Source: RevenueBase Database · checked Sep 30, 2026
11	Koops Automation Systems	Strong evidence	Holland, MI, United StatesHQ checked Sep 30, 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 30, 2026
12	Okuma America Corporation	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 30, 2026	201-500	262 contacts →
	Partial evidence “At Okuma, We open possibilities in manufacturing with world-class machine tools, service, and support.” Source: RevenueBase Database · checked Sep 30, 2026
13	Major Tool & Machine	Strong evidence	Indianapolis, IN, United StatesHQ checked Sep 30, 2026	201-500	233 contacts →
	Strong 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 30, 2026
14	Hypro INC	Indirect evidence	Waterford, WI, United StatesHQ checked Sep 30, 2026	201-500	221 contacts →
	Indirect evidence “HyPro Incorporated, established in 1969, is a leader in automated and robotic machining of low, mid and high volume castings and forgings, as well as complex assemblies, for Ag…” Source: RevenueBase Database · checked Sep 30, 2026
15	Jtekt Machinery Americas Corporation	Partial evidence	Arlington Heights, IL, United StatesHQ checked Sep 30, 2026	51-200	213 contacts →
	Partial evidence “From two-man job shops to high-volume production lines, manufacturing facilities have relied on JTEKT Machinery (formerly known as Toyoda Americas) for over 30 years.” Source: RevenueBase Database · checked Sep 30, 2026
16	Dwfritz Automation	Partial evidence	Wilsonville, OR, United StatesHQ checked Sep 30, 2026	201-500	213 contacts →
	Partial evidence “Precision Automation Custom-engineered, high speed precision assembly and inspection solutions that solve your most complex manufacturing challenges at scale.” Source: RevenueBase Database · checked Sep 30, 2026
17	Delta Modtech	Indirect evidence	Ramsey, MN, United StatesHQ checked Sep 30, 2026	201-500	162 contacts →
	Indirect evidence “Delta ModTech is a manufacturing solutions company with 40 years of mechanical, electrical and software engineering experience in designing and building specialty web converting…” Source: RevenueBase Database · checked Sep 30, 2026
18	Engel North America	Strong evidence	York, PA, United StatesHQ checked Sep 30, 2026	51-200	158 contacts →
	Strong evidence “ENGEL is the reliable plastics injection molding machine manufacturer you are looking for.” Source: RevenueBase Database · checked Sep 30, 2026
19	Lanco Integrated	Indirect evidence	Westbrook, ME, United StatesHQ checked Sep 30, 2026	201-500	148 contacts →
	Indirect evidence “With our problem-solving DNA going back to 1873, Lanco has been advancing in the automation industry since 1984 - expanding our design, build, and integration capabilities -…” Source: RevenueBase Database · checked Sep 30, 2026
20	Acieta	Indirect evidence	Council Bluffs, IA, United StatesHQ checked Sep 30, 2026	201-500	145 contacts →
	Indirect evidence “Since 1983, Acieta has partnered with manufacturing and engineering teams to design, build, and maintain automation systems that increase capacity, reduce downtime, and drive…” Source: RevenueBase Database · checked Sep 30, 2026
21	Duravant	Indirect evidence	Downers Grove, IL, United StatesHQ checked Sep 30, 2026	1,001-5,000	144 contacts →
	Indirect evidence “At DURAVANT, we are pushing the boundaries of how automation can change the world.” Source: RevenueBase Database · checked Sep 30, 2026
22	Knight Global	Indirect evidence	Auburn Hills, MI, United StatesHQ checked Sep 30, 2026	51-200	132 contacts →
	Indirect evidence “Knight Global began in 1984 as a specialty design/build shop, solving specific manufacturing problems for the automotive industry in Detroit.” Source: RevenueBase Database · checked Sep 30, 2026
23	Alliance Automation, LLC	Strong evidence	Van Wert, OH, United StatesHQ checked Sep 30, 2026	51-200	127 contacts →
	Strong evidence “Simply put, we design and build the machines that enable our customers to build their products.” Source: RevenueBase Database · checked Sep 30, 2026
24	Quality Manufacturing Corporation	Partial evidence	Urbandale, IA, United StatesHQ checked Sep 30, 2026	501-1,000	123 contacts →
	Partial evidence “Quality Manufacturing Corp is a Industrial Machinery Manufacturing Company based out of 4300 Nw Urbandale Dr, Urbandale, IA, United States.” Source: RevenueBase Database · checked Sep 30, 2026
25	ACS	Partial evidence	Verona, WI, United StatesHQ checked Sep 30, 2026	51-200	121 contacts →
	Partial evidence “ACS designs, engineers, and builds innovative equipment, machines, controls, and facilities for industry leaders in verticals including automotive, aerospace, and manufacturing.” Source: RevenueBase Database · checked Sep 30, 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: custom machinery manufacturers. 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 custom machinery manufacturers.
Partial evidence: Its own public description names part of custom machinery manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom machinery manufacturers. 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 2,218 custom machinery manufacturers based in the United States

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Custom machinery manufacturers based in the United States at a glance

As of Sep 30, 2026

32.1%Verified-email coverage

14.3Average contacts per company

11-50Median size (employees)

1.0%Largest-city concentration · Rochester

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

856

11-50

945

51-200

349

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 2,218 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 custom machinery manufacturers, 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 “custom machinery manufacturers”. 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 custom machinery manufacturers), 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 custom machinery manufacturers, 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, 10,180 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 30, 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.

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 custom machinery manufacturers, 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 custom machinery manufacturers are there based in the United States?

RevenueBase identified 2,218 custom machinery manufacturers 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?

GRAY, headquartered in Lexington, tops this list with the largest team on record.

Which city has the most custom machinery manufacturers?

Rochester leads with 23 headquartered companies, followed by Houston (20) and Holland (14).

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 10,180 verified decision-maker contacts tracked across these 2,218 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 30, 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.