Best Electronic Manufacturing Services Companies in California, United States
The 105 best Electronic Manufacturing Services companies in California, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Ducommun.
Ranked: Best Electronic Manufacturing Services companies in California
| # | Company | Employees | Disclosed funding | Last round | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | TTM Technologies Developer of PCBs and electro-mechanical components for assembly into products | 17,800 | $30M | 20 mo ago | — | DrupalApple iCloud MailPHP+16 | Top 5M | — | — |
| 2 | TTM Technologies Manufacturer of backplane assemblies suppliers and provide custom electro-mechanical solutions | 15,800 | — | 99 mo ago | Thomas Edman CEO | — | — | — | — |
| 3 | NEOTech Contract manufacturer of OEMs | 3,800 | — | 192 mo ago | Sudesh Arora CEO & President | WordPressApple iCloud MailMySQL+23 | Top 5M | — | — |
| 4 | Ducommun Innovative solutions for aerospace, defense, and industrial markets | 2,465 | $340M | 91 mo ago | Stephen Oswald CEO & President | Windows ServerMicrosoft ASP.NETIIS+5 | Top 5M | — | — |
| 5 | OnCore Provider of household, electrical, and electronic appliances manufacturing services | 950 | — | 186 mo ago | Sudesh Arora CEO | — | — | 2 patents Medical waste treatment devices and methods for safe disposal and decontamination | — |
| 6 | Electrical Source Holdings Provider of manufacturing services of electrical and telecommunications MRO components | 591 | — | — | Rob Logan Founder & CEO | — | — | — | — |
| 7 | Emerald Technologies Company is a contract manufacturing and design firm offering global, electronic manufacturing services and… | 285 285 → 338 (+19%) | — | — | Hartmut Liebel CEO | WordPress Block EditorElementorCart Functionality+22 | Top 10M | — | 2 job openings |
| 8 | dex Business of identifying and delivering supply chain solutions. | 240 | — | — | — | Cart FunctionalityShopifyApple iCloud Mail+23 | Top 10M | — | — |
Top 12 Electronic Manufacturing Services companies in California
#1
Public · Santa Ana, California · founded 1998 · 17800 employees$30Mraised▾
Developer of PCBs and electro-mechanical components for assembly into products
- Oct 2024Post IPO$30M
#2
Seed · San Jose, California$3Mraised▾
Provider of electronics manufacturing and PCB assembling services
#3
Public · Carson, California · founded 1849 · 2465 employees$340Mraised▾
Innovative solutions for aerospace, defense, and industrial markets. This company provides manufacturing and engineering services, developing electronic, engineered, and structural solutions. Their capabilities include circuit board solutions, interconnect solutions, integrated solutions, assembly, bonding, machining, tooling, and composite technology. They offer engineered products, RF solutions, motors, resolvers, human-machine interfaces, certified thermoplastics, and lightning diversion systems. The company focuses on delivering value through a collaborative approach, broad capabilities, and value-added services like new product introduction, supply chain strategies, and program management. They aim to advance the aviation, defense, and space industries, supporting all stakeholders and striving for high service levels. They are committed to corporate social responsibility and long-term sustainability.
- Nov 2018Conventional Debt$340M
#4
Funding Raised · Ladera Ranch, California · founded 2023$269.5Kraised▾
Provider of computer and electronics manufacturing services
- Mar 2024Grant (prize money)$269.5K
#5
Deadpooled · Simi Valley, California · founded 1978$6.7Mraised▾
Offers manufacturing and designing services to PCB's, floppy drives and related products
#6
Acquired · Richmond, California · founded 2004 · 75 employees$3.4Mraised▾
Provider of digital video processing services. The company offers 4K matrix switches, processors, scalers, signal conditioners, converters, extenders, system controllers and digital recorders to medical, federal and commercial industries.
#7
Funding Raised · San Jose, California · founded 2015$600Kraised▾
Consortium advances hybrid electronics manufacturing through technology development, workforce programs, and industry collaboration. It fosters a strong industrial base by uniting companies, academic institutions, non-profits, and government entities. The organization operates through a manufacturing consortium, a Technology Hub, and education and workforce development programs. These initiatives establish and expand the manufacturing industrial base, advance technology and fabrication capabilities, and cultivate human capital to build the future workforce.
- Jan 2021Grant (prize money)$600K
#8
Funding Raised · Van Nuys, California · founded 1994 · 39 employees—raised▾
Electronic Source Company is a leading provider of high-reliability electronic manufacturing services, specializing in the production of complex electronic components and assemblies. With a strong focus on quality and reliability, the company has established itself as a trusted partner for various industries. Electronic Source Company's expertise in navigating complex regulatory environments and providing customized solutions has enabled it to build a robust client base.
- Nov 2024Conventional Debt—
- Oct 2024Unattributed—
#9
Seed · San Clemente, California · founded 2013 · 45 employees—raised▾
Provider of electronic assembling, engineering, and manufacturing services
- Apr 2023Seed—
#10
Funding Raised · San Diego, California · founded 2000 · 41 employees—raised▾
Manufacturer of electronic products
#11
Acquired · San Jose, California · founded 2003—raised▾
Design and produces printed circuit boards and flex circuits.
#12
Public · Santa Ana, California · founded 2000 · 15800 employees—raised▾
Manufacturer of backplane assemblies suppliers and provide custom electro-mechanical solutions. It designs and manufactures advanced printed circuit boards to original equipment manufacturers and electronic manufacturing services companies. Their products include Advanced HDI, Flex, Rigid-Flex & Flex Assemblies, High Layer Count & Large Format, Specialty RF & Microwave PCB Products, IC Substrates, and Custom Backplane Assemblies & Electro-Mechanical Solutions. They also provide design and engineering services.
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Electronic Manufacturing Services coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.