Top 23 Contract Manufacturing Firms in California
Top 23 Contract Manufacturing Firms in California
The contract manufacturing industry in California comprises of companies providing advanced manufacturing and design solutions. They cater to various sectors including defense, aerospace, medical devices, industrial technology, and electronics. These companies offer a multitude of services from circuit board design, microelectronics assembly, end-to-end design solutions, to supply chain management. California's contract manufacturers prioritize innovation, quality, and user experience while focusing on sustainable and socially responsible operations. With the surge in technological advancements, the industry is poised to evolve further, promising better solutions and opportunities.
Top 23 contract manufacturing companies in California
1. Sanmina
- Website: sanmina.com
- Headquarters: San Jose, California, United States
- Founded: 1980
- Headcount: 10001+
- Latest funding type: Ipo
Sanmina is a global company that offers end-to-end design, manufacturing, logistics, and repair solutions for OEMs in various industries. With a focus on clean technology, social responsibility, and health & safety, they provide services such as engineering, manufacturing, supply chain management, and test services.
2. Career Technologies
- Website: careertech-usa.com
- Headquarters: Chatsworth, California, United States
- Founded: 1998
- Headcount: 10001+
- Latest funding type: Acquired
CareerTech is a company that provides turnkey solutions for electronics. They offer board-level assemblies, including flex and rigid flex, as well as printed board fabrication, programming/testing, ultrasonic welding, and integration into enclosure. They also provide services such as conformal coating, potting, plastic injection molding, and thermoformed solutions. They focus on exploring and developing next-generation technology while offering opportunities for advancement.
3. NEOTech
- Website: neotech.com
- Headquarters: Chatsworth, California, United States
- Founded: 1975
- Headcount: 1001-5000
NEOTech is an industry leader specializing in high-reliability programs for the Aerospace and Defense, Medical Device, and Industrial Technology markets. They offer a wide range of manufacturing and design services, including circuit board design, microelectronics assembly, and interconnect design. With over 40 years of experience, NEOTech focuses on high-complexity, low to medium volume, high mix products. They prioritize quality, reliability, and user experience to stay ahead of the competition.
4. Aaron Thomas Company, Inc.
- Website: packaging.com
- Headquarters: Garden Grove, California, United States
- Founded: 1973
- Headcount: 1001-5000
Packaging.com is a company that specializes in contract packaging services for various industries. They offer a wide range of packaging solutions, including snack food manufacturing, blister packaging, bundle wrapping, overwrapping, pallet displays, pouching, shrink wrapping, stick pack packaging, and tube filling services. With a focus on quality and efficiency, they strive to meet the unique packaging needs of their clients and help them bring their products to market successfully.
5. AQS, Inc.
- Website: aqs-inc.com
- Headquarters: Fremont, California, United States
- Founded: 1991
- Headcount: 501-1000
- Latest funding type: Acquired
AQS is a manufacturing and engineering service provider with over 30 years of experience. They offer high-quality electronics manufacturing and engineering services, catering to industries such as aerospace and defense, consumer electronics, medical, industrial, telecommunications, and energy. AQS provides end-to-end solutions, including design, production, logistics, and global supply chain management. They strive to deliver excellence and continuous improvement, ensuring customer satisfaction in a dynamic competitive environment.
6. Scantibodies Laboratory, Inc
- Website: scantibodies.com
- Headquarters: Santee, California, United States
- Founded: 1976
- Headcount: 501-1000
Scantibodies Laboratory, Inc. is a contract manufacturing company specializing in medical diagnostics products. They offer high-quality human and animal serum production, lyophilization and packaging services for IVD kits and medical devices. With over 45 years of experience, they provide accurate and reliable results for patients through their ISO certified processes. As a trusted strategic partner, Scantibodies takes prototypes to production, making processes more cost-effective through lean manufacturing concepts.
7. Express Manufacturing, Inc.
- Website: eminc.com
- Headquarters: Santa Ana, California, United States
- Founded: 1982
- Headcount: 1001-5000
EMI (Express Manufacturing, Inc.) is a reliable and flexible provider of manufacturing and engineering services. They offer solutions for production challenges, including assembly services and test fixture development. With a focus on customer satisfaction, EMI has demonstrated business integrity and reliability.
8. FM Industries
- Website: fmindustries.com
- Headquarters: Fremont, California, United States
- Founded: 1989
- Headcount: 201-500
FM Industries is a leading manufacturing solutions provider offering production manufacturing, machining, cleanroom assembly and bonding services, thermal spray anodizing, and prototype services. With eight facilities in Northern California and Arizona, covering over 500,000 sq ft and 1,200+ team members, the company supports the semiconductor industry by providing state-of-the-art services across various technologies.
9. Diamond Electronics
- Website: diamond-ems.com
- Headquarters: San Diego, California, United States
- Founded: 2000
- Headcount: 501-1000
Diamond EMS offers reliable Contract Manufacturing Services and Capabilities for the electronic industry. They integrate customer ideas into their fabrication and assembly expertise to deliver prototypes or full Box Build. They are committed to delivering quality products and continuously improving their services.
10. LeeMAH Electronics, Inc.
- Website: leemah.com
- Headquarters: Brisbane, California, United States
- Founded: 1971
- Headcount: 501-1000
LeeMAH Electronics is a company that specializes in providing end-to-end manufacturing solutions in the medical device, transportation, aerospace/defense, professional audio, and industrial instrumentation industries. They offer custom cable assembly, electromechanical box manufacturing, and printed circuit board (PCB) assembly services, along with test engineering expertise. With facilities in Brisbane, California and Richardson, Texas, LeeMAH Electronics is committed to delivering high-quality products and meeting industry standards such as AS-9100D, ISO:9001-2015, and IPC/WHMA-A-620 CIT.
11. KS Manufacturing
- Website: ksplastic.com
- Headquarters: San Leandro, California, United States
- Founded: 1955
- Headcount: 201-500
KS Plastic is a leading custom injection molding/contract manufacturing company that provides high-quality solutions for the healthcare and commercial industries. With a vertically integrated platform of capabilities, they deliver exceptional quality and service.
12. Cicon Engineering, Inc.
- Website: cicon.com
- Headquarters: Van Nuys, California, United States
- Founded: 1988
- Headcount: 201-500
Cicon Engineering Inc. is a contract manufacturer specializing in wire harness and cable harness assemblies. With a focus on quality parts and outstanding customer service, the company has gained a reputation for high quality products and customer satisfaction.
13. Life Science Outsourcing, Inc.
- Website: lso-inc.com
- Headquarters: Brea, California, United States
- Founded: 1997
- Headcount: 51-200
LSO Inc. brings medical innovations to life through a range of industry solutions, including orthopedic solutions, biopharmaceutical solutions, in vitro diagnostic solutions, and medical package testing services. They offer accelerated and real-time aging, package validation testing, distribution simulation testing, and stability testing. With expertise in sterilization and validation, supply chain management, and assembly services, they serve a diverse range of customers in the healthcare industry.
14. JOINN Biologics US Inc.
- Website: joinnbio.com
- Headquarters: Richmond, California, United States
- Founded: 2018
- Headcount: 51-200
- Latest funding type: Series B
JOINN Biologics is a full-service Contract Development and Manufacturing Organization (CDMO) located in Northern California. They offer a wide range of services including process development, formulation development, cell line development, analytical assay development, manufacturing, and quality control. With over two decades of experience, they provide support for the entire drug development process, from DNA to drug product. Their state-of-the-art facilities and expertise make them a trusted partner for pharmaceutical companies.
15. Valley Services Electronics
- Website: vse.com
- Headquarters: San Jose, California, United States
- Founded: 1981
- Headcount: 51-200
VSE is a contract manufacturer specializing in electronic design and manufacturing services. With a focus on PCB assembly, they offer high-quality and customized solutions for a wide range of industries. Their expertise and advanced manufacturing and testing processes ensure that products meet stringent industry standards and regulations. VSE values long-term relationships with customers and provides personalized service to exceed their needs and expectations.
16. Custom Product Development Corp
- Website: cpd-corp.com
- Headquarters: Livermore, California, United States
- Founded: 1974
- Headcount: 51-200
CPD is a manufacturing company that offers a range of services including seals, gaskets, die-cutting, welding, precision sheet metal fabrication, machining, and powder coating. They provide mechanical engineering and design support, as well as project management services. With over 50 years of experience, CPD is a trusted source for innovative design, prototyping, and production.
17. Sparqtron Corporation
- Website: sparqtron.com
- Headquarters: Fremont, California, United States
- Founded: 1999
- Headcount: 51-200
Sparqtron Corporation is an electronic manufacturing services (EMS) company that provides engineering and contract manufacturing services in a variety of industries. With a highly knowledgeable and experienced team, Sparqtron specializes in PCB assembly, quick-turn prototyping, and new product introduction (NPI). They offer both domestic and offshore manufacturing options to expedite time-to-market and achieve cost reduction. Their services include PCB design and layout, DFM/DFT support, PCB fabrication, box build assembly, inspection and testing, BGA rework and reballing, and startup support program.
18. Uni Precision
- Website: uniprecision.com
- Headquarters: San Jose, California, United States
- Headcount: 201-500
UniPrecision is dedicated to supporting hardware startups and entrepreneurs with realizing their dreams. We know for a fact that the first version of your product will not be the final one. This understanding and our dedication to entrepreneurship has led us to develop an extremely flexible production scheme that takes away the MOQ during the early days. However, the day that your startup is ready to scale, you can count on Uni Precision as well. Uni Precision has done more than product manufacturing: We have helped many companies and individuals grow their business. Guided by a customer centric philosophy, we provide customized product roadmaps and personalized manufacturing solutions to create the highest quality products with reliability and speed.
19. S & H Machine, INC.
- Website: shmachine.com
- Headquarters: Burbank, California, United States
- Founded: 1960
- Headcount: 51-200
S&H Machine is a manufacturing company that utilizes more than 70 CNC machines to produce highly complex products, including Impellers and Hydraulic Manifolds. They offer complete assembly and testing services, and work closely with development teams to launch new products and provide production support. With AS9100 certification and DDTC registration, they meet additional quality and safety standards. S&H Machine caters to customers in the aerospace, defense, commercial aviation, precision machinery, and high-pressure pump industries.
20. Trantronics, Inc.
- Website: trantronics.com
- Headquarters: Irvine, California, United States
- Founded: 1997
- Headcount: 51-200
Trantronics is a certified electronic contract manufacturing company that specializes in surface mount and thru-hole board assembly for prototype, pre-production and production orders. The company guarantees 100% customer satisfaction by providing unparalleled quality, quick turn-around time and exceptional customer support.
21. Precision PCBS
- Website: precisionpcbs.com
- Headquarters: Vista, California, United States
- Founded: 2006
- Headcount: 11-50
PrecisionPCBs is a printed circuit board manufacturer based in San Diego, California that offers PCB manufacturing, PCBA manufacturing, and design support services with a focus on quality and customer satisfaction.
22. Murdoc Technology LLC
- Website: murdoc.com
- Headquarters: Fresno, California, United States
- Founded: 1999
- Headcount: 11-50
Murdoc Technology is a contract manufacturer specializing in wire harness, cable, electro-mechanical, printed circuit board, and control panel assemblies. The company also offers services such as composite harness braiding, packaging, shipping, and repair station services.
23. Central Valley Assembly & Packaging
- Website: centralvalleyassembly.com
- Headquarters: Fresno, California, United States
- Founded: 2002
- Headcount: 11-50
Central Valley Assembly and Packaging is a company that specializes in contract packaging, assembly services, skin packaging, auto-bagging, shrink wrapping, kitting, and bottle filling. The company offers these services to a variety of industries to help streamline their production and assembly processes.
Want to find more contract manufacturing companies?
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