Company lists · Data refreshed September 2026
Top 25 Manufacturing service companies based in San Jose, United States
RevenueBase identified 64 manufacturing service companies headquartered in San Jose, United States as of September 2026 and tracks 1,016 professional contacts across them, including 311 with verified work emails. Across the United States, Houston is the largest hub for this category (64 companies); San Jose follows with 64.
This list covers manufacturing service companies 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 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.
The 25 largest manufacturing service companies based in San Jose, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 101 contacts → | ||||
Strong evidence “FULL EMS SERVICES We provide full professional EMS (Electronic Contract Manufacturing) Services.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 84 contacts → | ||||
Indirect evidence “Naprotek is an electronics technology solutions provider for high-reliability applications.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 23 contacts → | ||||
Indirect evidence “Encore provides the technical and integration expertise to your company's engineering and procurement resources.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 15 contacts → | ||||
Strong 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 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 14 contacts → | ||||
Strong evidence “We are a leader in Manufacturing for Medical, Defense, Aerospace and Semi-Conductor Fab.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 13 contacts → | ||||
Indirect 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 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 12 contacts → | ||||
Strong evidence “MVINIX provides Electronic Manufacturing Solutions and is an Innovator in Prototype & Flex Circuit Assembly.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 10 contacts → | ||||
Indirect evidence “PIRANHA has implemented a dynamic operations strategy that sets a new industry standard.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 9 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 9 contacts → | ||||
Strong evidence “Group Seven Corporation is a service-oriented team of materials and program management professionals responsible for meeting the sourcing and manufacturing needs of our diverse…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 8 contacts → | ||||
Strong evidence “Overview Since 2010 JAVAD EMS is a premier provider of end-to-end electronics manufacturing services.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 8 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 8 contacts → | ||||
Indirect evidence “For over two decades DP Products has provided precision machining services to both Silicon Valley companies and global OEMs in the aerospace, defense, medical and semiconductor…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 7 contacts → | ||||
Indirect evidence “Helping our customers succeed has been our mission since 1960.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 6 contacts → | ||||
Indirect evidence “QoSTronics specializes in high quality production of PCB assemblies.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 6 contacts → | ||||
Strong evidence “Gentec Manufacturing is a high quality, team oriented, process driven, CNC Precision Machine Shop specializing in multi-axis Milling, Turning and EDM work.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Strong evidence “Contract manufacturing and engineering partner based in San Jose, Silicon Valley, specializing in PCB layout services, PCB assembly (PCBA), PCB fabrication, system build…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 5 contacts → | ||||
Indirect evidence “We are a Silicon Valley based premier contract manufacturer producing quality parts for a wide range of industries.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Indirect evidence “We are in a state of the art square foot climate controlled facility centrally located between highways 87, 101 and 880 in San Jose, CA.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Strong evidence “Established in 2013 by industry experts specializing in NPI, product design, and custom part/equipment manufacturing, Central Technologies Inc.(CTI) is a contract manufacturing…” Source: RevenueBase Database · checked Sep 30, 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: manufacturing service 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 manufacturing service companies.
- Partial evidence
- Its own public description names part of manufacturing service companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name manufacturing service 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 64 manufacturing service companies based in San Jose, United States
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Manufacturing service companies based in San Jose, United States at a glance
As of Sep 30, 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 64 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 manufacturing service 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 San Jose, United States whose own description of what they do matches “manufacturing service 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 manufacturing service 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 manufacturing service companies, 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, 311 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.
Manufacturing service companies by metro in the United States
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 manufacturing service 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 manufacturing service companies are there based in San Jose, United States?
RevenueBase identified 64 manufacturing service companies 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?
Emerald Technologies, headquartered in San Jose, tops this list with the largest team on record.
Which city in the United States has the most manufacturing service companies?
Houston leads the United States with 64 headquartered companies, followed by San Jose (64) and Rochester (40).
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 311 verified decision-maker contacts tracked across these 64 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.
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