Spectrum Assembly, Inc. (SAI) is Small Business Certified as a one-stop source for all your contract manufacturing needs. SAI is registered to  ISO 9001 and ISO 13485. SAI is also FDA and ITAR registered.

Our experience in contract manufacturing:

Support services are designed to meet or exceed our customers’ expectations every time. SAI provides a total solution of near sourcing to companies in Medical Device Manufacturing, Industrial Manufacturing, and Defense/Aerospace Manufacturing.

Our contract manufacturing operations are housed in a state-of-the-art facility in San Diego County and more specifically Carlsbad, CA. We are small enough to provide a highly personalized approach, yet large enough to address your requirements from new product introduction through end-of-life. SAI has 5 tailored service packages (see below) to help your company transition to outsourcing. Check out our latest newsletter.

Let SAI take the work out of your next project. Learn the benefits of outsourcing, working with US manufacturers, and more on our blog.



6300 Yarrow Drive, Suite 100 Carlsbad, CA 92011


(760) 930-4000




In San Diego we serve a varied group of customers ranging from multinational OEMs with niche sourcing requirements to companies who depend on us for all their manufacturing needs. We provide the right mix of services, high quality products and on-time delivery. We are small enough to provide a highly personalized approach, yet large enough to address your needs from new production introduction through end-of-life.


Mechanical Assembly System Integration

Our vertically integrated cable/harness and PCB assembly capabilities enhance schedule flexibility and simplify the overall sourcing equation. From start to finish, SAI is your one-stop shop for manufacturing. Simply place a purchase order with us and let SAI do the rest. SAI will contact and negotiate pricing on your behalf for all of your custom manufacturing needs. Cable assemblies and printed circuit board assemblies are built in our Carlsbad facility for an easy transfer to finished device box builds.

PCB Assembly

Every board is inspected by our AOI machine to ensure the highest amount of quality possible. Spectrum Assembly conforms to requirements for handing Electrostatic Discharge (ESD) sensitive devices. We have a controlled ESD floor and ESD hand and foot devices for our employees. SAI guarantees on time delivery when we furnish the material. All material is built to IPC-A 610 and IPC-A 620 workmanship standard under ISO 9001 or ISO 13485


Support Services

Since most of our projects involve mission critical applications, we’ve migrated to paperless documentation, shop floor control and quality management systems. This supports stringent configuration management, rapid changeovers and crisp communication between project team members.

Cable & Wire Harness assembly

SAI prides itself on the ability to do things right, the first time. We are proud to report 99% first pass yields on cables. SAI produces cables for Medical, Industrial, and Aerospace/Defense customers. Spectrum Assembly is focused on quality from receiving material to delivery. We support customers on a Kanban basis of thousands per month and configure to order (CFO) cables that change daily.


Facilities & Equipment

Founded in 1993, Spectrum Assembly is headquartered in a 60,000 sq. ft. facility in Carlsbad, CA. which is 43 miles north of San Diego and only 98 miles south of Los Angeles. As a full service turnkey contract manufacturer we have become the supplier of choice for our customers’ design, manufacturing and test of their printed circuit assemblies, complex box build and cable harness needs. Our long standing manufacturing partnerships is a direct result of SAI’s philosophy of putting the customer first. We provide a quality product on time at a competitive cost. See our facility in action. Set up a tour today.


Continuous improvement is better than delayed perfection.
— Mark Twain


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Use the form below to contact us regarding your manufacturing inquiry. Please be as detailed as possible. Include your industry along with any specific requests.

Thank you for your interest in Spectrum Assembly, your one-stop shop for all of your contract manufacturing needs.

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