Since 1969, Circuit Assembly in Irvine, CA manufactures custom cable assemblies, connectors, box builds & wire harnesses for aerospace, defense, medical & industrial markets. Circuit Assembly has been delivering precision-engineered interconnect solutions for more than five decades. Founded in 1969, our mission has remained consistent: to provide innovative, reliable, and cost-effective custom cab
le assemblies, connectors, wire harnesses, and box builds for industries where performance and dependability are essential. From our beginnings as a small California-based engineering company, we have grown into a global manufacturer trusted by leading OEMs across aerospace, defense, medical, industrial, energy, and transportation markets. Our geographic footprint includes our Irvine, California headquarters, where engineering, prototyping, and customer support are based, and a manufacturing facility in Shenzhen, China. This dual presence allows us to combine the best of both worlds; U.S.-based innovation and customer service with global production scalability and cost efficiency. Many of our products are proudly engineered and manufactured in the U.S.A., supporting customers who value American-made quality and supply chain security. We specialize in custom cable assemblies, custom connectors, and wire harnesses built to perform in the most demanding environments, supported by box build and PCBA integration capabilities for complete turnkey system solutions. Every product is backed by strict quality processes, including ISO 9001:2015 and AS9100D certifications and ITAR registration, ensuring that we meet the highest standards of compliance and reliability. On-time delivery and 100% electrical testing are part of our commitment to excellence. We approach every engagement as a long-term partnership, working closely with our clients to deliver solutions that exceed expectations. Our team is known for responsiveness, transparent communication, and the ability to provide quick-turn prototypes that accelerate development schedules without compromising quality. Many of our staff have decades of tenure, reflecting a culture built on stability, knowledge, and dedication to our customers’ success. Circuit Assembly’s vision is to be more than a manufacturer; we strive to be a true engineering partner. By leveraging over 55 years of experience, a culture of innovation, and a flexible production model, we help our customers bring ideas to life faster, smarter, and with uncompromising reliability. Whether developing rugged interconnects for defense, precision assemblies for medical devices, or high-speed data solutions for industrial systems, we remain focused on solving complex challenges with creativity and technical expertise. Circuit Assembly continues to innovate while remaining grounded in the values that have defined us since 1969: reliability, responsiveness, and the relentless pursuit of excellence in every product we build.
