Company lists · Data refreshed September 2026
Top 25 Engineering and manufacturing services based in San Jose, United States
RevenueBase identified 99 engineering and manufacturing services headquartered in San Jose, United States as of September 2026 and tracks 22,444 professional contacts across them, including 4,818 with verified work emails. San Jose is the largest hub.
This list covers engineering and manufacturing services headquartered in San Jose, 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.
The 25 largest engineering and manufacturing services based in San Jose, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 186 contacts → | ||||
Indirect evidence “GES is among the global leaders in automation, test and measurement.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 179 contacts → | ||||
Indirect evidence “Since 1984, MASS has excelled in the custom contract manufacture of electronic chassis, frames, fabrications and turn-key electro-mechanical assemblies built to customer…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 155 contacts → | ||||
Strong 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 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 101 contacts → | ||||
Partial evidence “FULL EMS SERVICES We provide full professional EMS (Electronic Contract Manufacturing) Services.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 98 contacts → | ||||
Partial evidence “RAAD Systems provides integrated engineering solutions for organizations developing complex products and systems.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 91 contacts → | ||||
Partial evidence “Valley Services Electronics (VSE) provides high-quality electronic manufacturing services for companies building complex, reliable products.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 90 contacts → | ||||
Strong evidence “Applied Engineering, provides high technology contract manufacturing services to original equipment manufacturers and end-users in the medical, aerospace, homeland security…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 88 contacts → | ||||
Indirect evidence “Qmax Systems has been a trusted partner for companies that need to bring complex electronic products to life, from concept to production-ready hardware.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 72 contacts → | ||||
Partial evidence “Advanced Engineering Services (AES) provides premier product design engineering and automation tool design/build services globally.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 61 contacts → | ||||
Partial evidence “Green Circuits is a full-service Electronics Manufacturing Services (EMS) partner to leading OEM’s.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 56 contacts → | ||||
Strong evidence “CathX Medical (A Zeus Company) offers medical device companies and OEMs a single source for design engineering services, rapid prototyping, manufacturing, and full or…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 48 contacts → | ||||
Indirect evidence “Established in 1993, Epoch International Enterprises, Inc.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 40 contacts → | ||||
Partial evidence “Megaforce Corporation provides a complete, customized and focused Electronics Manufacturing Services (EMS) solution for OEM customers across diverse markets.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 31 contacts → | ||||
Indirect evidence “BriteLab offers full-spectrum product development, locally in Silicon Valley.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 28 contacts → | ||||
Indirect evidence “Have you thought of a great idea and all you have to show for it is a penciled sketch?” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 23 contacts → | ||||
Partial evidence “Encore provides the technical and integration expertise to your company's engineering and procurement resources.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 22 contacts → | ||||
Indirect evidence “Founded in 1976, Tobar Industries is an ISO 9001-2008 certified contract manufacturer specializing in precision sheet metal fabrication, electro-mechanical assemblies and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 21 contacts → | ||||
Indirect evidence “With over 18+ years experience managing some of the most complex EMS projects in the Silicon Valley, we understand the unique and dynamic support our customers require for success.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 15 contacts → | ||||
Partial evidence “A-Laser offers precision parts manufacturing for a variety of end markets including medical, industrial, electronics, aerospace and more.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 14 contacts → | ||||
Strong evidence “Complete turnkey contract engineering and manufacturing company Capital Automation system.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 14 contacts → | ||||
Indirect evidence “SN & N Electronics, Inc.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 13 contacts → | ||||
Partial evidence “JL Precision is ISO 9001:2008 registered organization that offers the following services, all of which are completely in-house: • Engineering, DFM, and FMEA services.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 12 contacts → | ||||
Partial evidence “MVINIX provides Electronic Manufacturing Solutions and is an Innovator in Prototype & Flex Circuit Assembly.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
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 99 engineering and manufacturing services based in San Jose, United States
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Engineering and manufacturing services based in San Jose, United States at a glance
As of Sep 16, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for San Jose, so it is reported there. Company counts and contact totals on this page are exact for San Jose, over 99 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 San Jose, 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 San Jose 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, 4,818 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 in the United States
- Engineering and manufacturing services in San Jose99
- Engineering and manufacturing services in San Diego84
- Engineering and manufacturing services in Houston81
- Engineering and manufacturing services in Austin57
- Engineering and manufacturing services in Los Angeles52
- Engineering and manufacturing services in Rochester49
- Engineering and manufacturing services in Fremont48
- Engineering and manufacturing services in Phoenix47
- Engineering and manufacturing services in San Francisco46
- Engineering and manufacturing services in Seattle45
- Engineering and manufacturing services in Chicago42
- Engineering and manufacturing services in New York42
- Engineering and manufacturing services in Portland41
- Engineering and manufacturing services in Atlanta38
- Engineering and manufacturing services in Irvine37
- Engineering and manufacturing services in Columbus36
- Engineering and manufacturing services in Grand Rapids36
- Engineering and manufacturing services in Santa Clara36
- Engineering and manufacturing services in Cincinnati32
- Engineering and manufacturing services in Troy32
- Engineering and manufacturing services in Holland31
- Engineering and manufacturing services in Indianapolis28
- Engineering and manufacturing services in Miami28
- Engineering and manufacturing services in Orlando28
- Engineering and manufacturing services in Tempe28
- Engineering and manufacturing services in Dayton27
- Engineering and manufacturing services in Denver27
- Engineering and manufacturing services in Minneapolis27
- Engineering and manufacturing services in Dallas26
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 San Jose, United States?
RevenueBase identified 99 engineering and manufacturing services headquartered in San Jose, 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 4,818 verified decision-maker contacts tracked across these 99 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.
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