PCB is an essential component for many electronics and equipment. Suppose you are looking for a PCB assembly or PCB manufacturer in California and want to find a reliable California PCB manufacturer. In that case, you can take some time to study these best California PCB manufacturers.
List of the reliable California PCB manufacturers
Honeywell International

Honeywell International is a large international company located in California. The company was founded in 1920. Its business scope is vast, from sensors to PCB production. As a large company, if you need a high volume PCB, the company may meet your needs, but if you only need some customized small volume PCB manufacturing and assembly business, it may not be the best choice.
ADI American Distributors LLC

ADI American Distributors LLC was founded in 1983. The company has an inventory of millions of electronic components. As a result, the company is a good choice if you want to find a supplier to meet all your needs. Due to its large reserves of electronic components, it can deliver PCBs with high reliability and high quality from low volume to high volume PCBs on time.
With more than 30 years of PCB industry experience, starting from mainly meeting the needs of the aviation and military PCB, it has developed into a PCB supplier widely used in the whole industry, such as medical, industrial, marine, and miscellaneous electronics.
The company is proud of providing various certification and integrity standards, focusing on details, and responding to compliance issues at any time. As a result, the company is a good choice if your product application involves this problem.
BENCOR, LLC

Founded in 1992, bancor, LLC is a customized PCB manufacturer serving in California and covering the United States with about 10-49 employees. With 25 years of PCB manufacturing experience, the company has helped more than thousands of partners related to PCB applications.
If you can’t get customized low-volume PCB production service in other large companies worldwide, don’t worry. You can try to contact Bencor, LLC, which can quickly help you realize customized PCB design and manufacturing services.
The company has a complete tracking process, providing you with the best tips from the initial PCB concept construction to the final PCB production finish.
various certifications for PCB manufacturing, such as:
UL Certified
ISO 9001:2015
Consistent with UL and IPC requirement
Why can bancor, LLC manufacture high-quality PCB? That is because the company strictly follows all kinds of inspections and operations required for PCB production, from electronic and visual inspection to all types of PCB testing.
Bencor, LLC can provide up to 16 layers of PCB multi-layer manufacturing service. For your PCBs, you can choose FR-4, CEM-3, aluminum-based, copper-based, high-frequency board, high Tg, Rogers, etc., materials.
This company can control the thickness of PCB within a minimum of 0.3mm and a maximum of 4mm. If you want to know more information about Bencor, LLC, you can visit the company’s website or contact us to help you.
Optima Technology Associates, Inc

Optima technology associates, Inc. has 18 years of PCB industry experience, with about 50-99 team members and annual sales of about $5-9.9 million.
Headquartered in California, there is a PCB factory with a production capacity of 100k2 in India.
From single-layer PCB to multi-layer PCB manufacturing, from one-stop PCB service to small volume prototype production, PCB optimization, PCB electronic components, and main assembly manufacturing, the company can meet your requirement.
PCB Highlights:
Thickness from 0.020 to 0.125 inches
1-10 Layers
FR4, FR2, CEM1, Al, Cu, High Dielectric Laminates
100% bare board test, flying probe, and simultaneous top/bottom
ISO Certified, IPC Class II or III, IPC 6012 / MIL STDs
Rigid, Flex, or Combined Constructions
SMOBC, HAL, PISM, Pb-free HAL, ENIG, & OSP Finishes
Cu Cladding from 18 to 70 microns
8 Mil Holes, 5 Mil Traces / Isolation
PCB Services:
PCB design & layout
Photo plotting / Gerber plot review
Design review check
Excello Circuits, Inc.
Founded in 1992, Excello circuits, Inc. is a customized PCB manufacturer in California, with annual sales of about $5-9,9 million and team members of 10-49 people. Excello circuits, Inc. can provide one-stop PCB solutions, from initial product development to design, PCB prototype and printing, assembly, and manufacturing services to complex circuit PCB boards.
At Excello circuits, Inc., you can enjoy the competitive price, fast delivery, and reliable PCBs. With many years of experience in the PCB industry, the company continues to invest in new PCB processes technology and manufacturing equipment to improve PCB quality and reduce price as much as possible.
The main types of PCB boards :
Flex: Single, double-sided, or multiple layers of ultra-thin, flexible ribbons allow you to fit small confined spaces.
HDI (High-Density Interconnect PCBs) – High-Density Interconnect provides the technology to increase the functionality of PCBs in a reduced amount of space.
Rigid-Flex PCBs: Rigid combined with Flex material provides a simple way of integrating printed circuit boards to multiple devices such as retinal displays or storage devices without the need for wires or cables.
Metal Core PCBs/Heavy-copper Layers – Up to 12 oz. Used in high-power applications.
Rigid PCBs– Conventional printed circuit boards.
In addition to this main PCB service, if you have special requirements, you can contact us, and the team will be very happy to solve the problems you encounter in PCB design and manufacturing.
Transline Technology, Inc.

Transline Technology, Inc. (TTI) was founded in 1991, Anaheim, CA-based, which is a world-class designer and manufacturer of high-frequency, high-speed, and hybrid analog/digital printed circuit boards (PCBs) for a wide range of applications, fabricating as many as 24 circuit layers from RF and microwave through millimeter-wave frequencies.
They can meet your needs if you want to manufacture rigid, flexible, or rigid-flexible circuit board materials. With its many years of manufacturing experience and leading equipment, the company can maintain a reasonable error rate for single-layer PCBs to multi-layer PCBs.
Since the PCBs produced and manufactured have been strictly tested, the company’s products can be used for various markets, including high power and medical markets, aerospace and military, automotive, and communications, while delivering PCBs, cost-effectiveness, and under the tightest time constraints.
Digicom Electronics, Inc.

Digicom Electronics, an electronics PCB manufacturing services (EMS) company manufacturing in the California Bay Area since 1982, is a certified HUBZone and Small Business.
Although the company is a small PCB California manufacturer, its products have also passed various certifications, such as:
ISO 13485:2016 Quality Management system
STAR
AS9100:2016 (Rev D) aerospace quality
ISO 9001:2015
ANSI/IPC-A-601D
ANSI/IPC-A-610B
Quality system regulation 21 CFR 820
Mil-Spec 45208 (Workmanship)
As a small PCB manufacturing and PCB assembly service provider In California, it can provide more flexible customized design and manufacturing PCBs than a large PCB manufacturer, also can provide some special PCB services:
Flexible circuits and RF capabilities
Customized services and support
Quick turns, changeovers, & engineering change orders
On-time delivery
Complex prototypes, boards, box-builds
Advanced high-speed SMT line to support larger volume assembly
Warehousing, fulfillment, and life-cycle support
As a low-volume PCB manufacturer, they also have very rich experience in all kinds of PCB applications. The PCB manufactured can also be widely used in aerospace, space, avionics, & military, medical device and life sciences, industrial and instrumentation: Internet, telecommunications, & Wireless, and other industries.
Giltronics Associates Inc.

Founded in 1978, Giltronics associates Inc. has a long history in the PCB industry. The company is a leading contract PCB manufacturer in California, which focuses on ECM and EMS contract PCB manufacturing services.
Getronics associates Inc. in Los Angeles can provide SMD technology, printed circuit board assembly, OEM, and ODM services to a wide range of industrial markets, including artificial intelligence (AI), virtual reality (VR), aerospace industry, automobile industry, medical industry, audio, robotics industry, sensor technology, Bluetooth and wireless technology.
Getronics associates Inc. has won many awards in the competition in the PCB industry. So if you want to find a reliable PCB contract manufacturer, the company may be a good choice for you.
The company can provide the 2-30 layers of PCB for PCB layer manufacturing. The minimum linear width, minimum line space, min space between pad to pad can reach 3mil, and the maximum size of the finished board can reach 23inch * 35inch.
Final Words
We have introduced above some best California PCB manufacturers. However, if you want to get more options, you can also read Europe PCB manufacturers or contact us. As one of China’s best PCB manufacturing and production providers, Eashub is very enthusiastic about helping you. Whether it is low volume, high volume PCB manufacturing, and assembly, or small PCB electronic components, our professional team is preparing to serve you today.