Company lists · Data refreshed September 2026

Top 25 Engineering and manufacturing services based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 7,511 companies tracked

RevenueBase identified 7,511 engineering and manufacturing services headquartered in the United States as of September 2026 and tracks 155,511 professional contacts across them, including 42,559 with verified work emails. San Jose is the largest hub.

This list covers engineering and manufacturing services 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 16, 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 16, 2026 86% judged on-target in blind review

7,511Companies

155,511Contacts tracked

42,559Verified emails

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The 25 largest engineering and manufacturing services based in the United States

Ranked by team size

Top 25 of 7,511 engineering and manufacturing services based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to engineering and manufacturing services: 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	Sanmina	Partial evidence	San Jose, CA, United StatesHQ checked Sep 16, 2026	10001+	20,153 contacts →
	Partial evidence “Sanmina Corporation (Nasdaq: SANM) is a leading integrated manufacturing solutions provider serving the fastest-growing segments of the global Electronics Manufacturing Services…” Source: RevenueBase Database · checked Sep 16, 2026
2	Plexus Corp	Indirect evidence	Neenah, NC, United StatesHQ checked Sep 16, 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 16, 2026
3	Benchmark	Strong evidence	Tempe, AZ, United StatesHQ checked Sep 16, 2026	10001+	5,362 contacts →
	Strong evidence “Benchmark is a worldwide provider of innovative product design, engineering services, technology solutions and advanced manufacturing services.” Source: RevenueBase Database · checked Sep 16, 2026
4	Kimball Electronics	Indirect evidence	Jasper, IN, United StatesHQ checked Sep 16, 2026	5,001-10,000	2,192 contacts →
	Indirect evidence “Kimball Electronics was founded in 1961.” Source: RevenueBase Database · checked Sep 16, 2026
5	Caresoft Global	Partial evidence	Livonia, MI, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,860 contacts →
	Partial evidence “We are a global engineering solutions company working closely with major Automotive, On-Highway, Agriculture & Construction Equipment Manufacturers and Tier-I Suppliers to solve…” Source: RevenueBase Database · checked Sep 16, 2026
6	GRAY	Partial evidence	Lexington, KY, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,477 contacts →
	Partial 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 16, 2026
7	Moldtek Technologies Limited	Indirect evidence	Cumming, GA, United StatesHQ checked Sep 16, 2026	501-1,000	1,107 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
8	DGS Technical Services INC	Indirect evidence	Elgin, IL, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,050 contacts →
	Indirect evidence “DGSTS, Inc.” Source: RevenueBase Database · checked Sep 16, 2026
9	ARI	Strong evidence	East Peoria, IL, United StatesHQ checked Sep 16, 2026	1,001-5,000	979 contacts →
	Strong evidence “ARi is a global engineering firm headquartered in East Peoria, Illinois, USA offering services for: Embedded Software, Product Engineering, Manufacturing Engineering and Testing &…” Source: RevenueBase Database · checked Sep 16, 2026
10	Smtc Corporation	Partial evidence	Melbourne, FL, United StatesHQ checked Sep 16, 2026	1,001-5,000	971 contacts →
	Partial evidence “SMTC is a global Electronics Manufacturing Services (EMS) provider, delivering fully integrated and customized contract manufacturing services.” Source: RevenueBase Database · checked Sep 16, 2026
11	Resonetics	Strong evidence	Nashua, NH, United StatesHQ checked Sep 16, 2026	1,001-5,000	920 contacts →
	Strong evidence “Resonetics is a medical device contract development and manufacturing organization (CDMO) that partners with engineering and R&D teams, from early-stage startups to the world's…” Source: RevenueBase Database · checked Sep 16, 2026
12	Janicki	Strong evidence	Sedro-woolley, WA, United StatesHQ checked Sep 16, 2026	1,001-5,000	914 contacts →
	Strong evidence “Janicki is a privately-owned engineering and manufacturing company with locations in Washington and Utah.” Source: RevenueBase Database · checked Sep 16, 2026
13	MEC Mayville Engineering Company, INC	Partial evidence	Mayville, WI, United StatesHQ checked Sep 16, 2026	1,001-5,000	906 contacts →
	Partial evidence “We are more than just a manufacturing and fabricating company.” Source: RevenueBase Database · checked Sep 16, 2026
14	Tecomet, INC	Partial evidence	Wilmington, MA, United StatesHQ checked Sep 16, 2026	1,001-5,000	880 contacts →
	Partial evidence “Tecomet develops proven, full-spectrum scalable manufacturing solutions for leading medical device technology, aerospace, and defense companies for whom exceptional quality is…” Source: RevenueBase Database · checked Sep 16, 2026
15	Nelson Global	Indirect evidence	Stoughton, WI, United StatesHQ checked Sep 16, 2026	1,001-5,000	879 contacts →
	Indirect evidence “Nelson Global designs, manufactures, and distributes custom solutions for customers across crucial industries worldwide.” Source: RevenueBase Database · checked Sep 16, 2026
16	Technosoft Engineering	Strong evidence	Morrisville, NC, United StatesHQ checked Sep 16, 2026	501-1,000	833 contacts →
	Strong evidence “Technosoft Engineering is a global provider of Digital Engineering & Consulting, Product Engineering, Manufacturing Engineering with substantial operations in North America and…” Source: RevenueBase Database · checked Sep 16, 2026
17	MICRO	Indirect evidence	Somerset, NJ, United StatesHQ checked Sep 16, 2026	501-1,000	723 contacts →
	Indirect evidence “MICRO is a full service contract manufacturer that draws on more than 80 years of experience in medical device assembly, precision metal stamping, insert and injection molding…” Source: RevenueBase Database · checked Sep 16, 2026
18	Neotech	Strong evidence	Chatsworth, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	641 contacts →
	Strong evidence “NEOTech is a premier provider of electronic manufacturing services (EMS), integrated design engineering, and advanced supply chain solutions for the aerospace and defense, medical…” Source: RevenueBase Database · checked Sep 16, 2026
19	OSI Electronics	Partial evidence	Hawthorne, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	634 contacts →
	Partial evidence “OSI Electronics is a global Manufacturing Solutions provider headquartered in Hawthorne, CA, and Singapore.” Source: RevenueBase Database · checked Sep 16, 2026
20	IEC Electronics Corp	Partial evidence	Newark, NY, United StatesHQ checked Sep 16, 2026	n/a	563 contacts →
	Partial evidence “IEC Electronics, acquired by Creation Technologies in 2021, is a provider of electronic manufacturing services ("EMS") to advanced technology companies that produce life-saving…” Source: RevenueBase Database · checked Sep 16, 2026
21	FM Industries	Indirect evidence	Fremont, CA, United StatesHQ checked Sep 16, 2026	201-500	552 contacts →
	Indirect evidence “FM Industries, Inc.” Source: RevenueBase Database · checked Sep 16, 2026
22	RFA Engineering	Indirect evidence	Eden Prairie, MN, United StatesHQ checked Sep 16, 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 16, 2026
23	Mack Molding Company	Partial evidence	Arlington, VT, United StatesHQ checked Sep 16, 2026	1,001-5,000	453 contacts →
	Partial evidence “Mack Molding Co, headquartered in Arlington, VT, provides design through FDA-approved manufacturing services to the medical, commercial, computer & business equipment, energy and…” Source: RevenueBase Database · checked Sep 16, 2026
24	Electroimpact	Indirect evidence	Mukilteo, WA, United StatesHQ checked Sep 16, 2026	201-500	443 contacts →
	Indirect evidence “Electroimpact is a highly experienced provider of factory automation and tooling solutions.” Source: RevenueBase Database · checked Sep 16, 2026
25	RCO Engineering	Partial evidence	Roseville, MI, United StatesHQ checked Sep 16, 2026	501-1,000	438 contacts →
	Partial 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 16, 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: engineering and manufacturing services. 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 engineering and manufacturing services.
Partial evidence: Its own public description names part of engineering and manufacturing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engineering and manufacturing services. 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 7,511 engineering and manufacturing services based in the United States

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Engineering and manufacturing services based in the United States at a glance

As of Sep 16, 2026

27.4%Verified-email coverage

20.7Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · San Jose

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

3,433

11-50

2,432

51-200

1,218

201-500

262

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 7,511 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 engineering and manufacturing services, 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 “engineering and manufacturing services”. 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 engineering and manufacturing services), 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 engineering and manufacturing services, 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, 42,559 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 16, 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.

Engineering and manufacturing services 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 engineering and manufacturing services, 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 engineering and manufacturing services are there based in the United States?

RevenueBase identified 7,511 engineering and manufacturing services 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?

Sanmina, headquartered in San Jose, tops this list with the largest team on record.

Which city has the most engineering and manufacturing services?

San Jose leads with 99 headquartered companies, followed by San Diego (84) and Houston (81).

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 42,559 verified decision-maker contacts tracked across these 7,511 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 16, 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.