World Class Contract Manufacturer

Specializing in Electrical Wire & Cable Harnesses and Electromechanical Assemblies


Commitment to Quality.


Turn-key cable or electromechanical assembly, manufacturing expertise and robust supply-chain management.
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Our 45,000 square foot facility provides the space to support our existing and future customers.
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Effective training programs & a stable, talented workforce have led to a track record of meeting customer needs.
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Going strong since 1997.


Since 1997, Custom Interface, Inc., has been a world class contract manufacturer focused on building custom wire/cable harnesses, and integrating those harnesses into complex electromechanical assemblies for test and measurement , renewable energy, medical, aerospace, and defense applications.

We specialize in helping our customers develop robust wire harness and cable interconnect solutions, whether it be for life-saving medical equipment, mission-critical systems for our troops abroad, or “cannot fail” equipment that operates in harsh environments.



Read the Latest Articles:

How Our Team Overcomes Common Cable and Wire Harness Problems

Each day our team takes on the challenge to overcome potential problems within the manufacturing process. They are not strangers to the issues and continue with a strong commitment for excellence.

What are common problems? And what does our team consider the most important thing they do to...

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The Process for Box Build Assemblies

Typically, a box build will contain printed circuit board assemblies (PCBAs), wire harnesses, point-to-point wiring, and the mechanical structure of the box. Building all of this together is similar to making a cake, with multiple layers. The order and structure of the pieces is critical to the...

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PNAA 8th Annual Women in Aerospace Recognized Nancy White as Woman of the Year

Since 2001, Pacific Northwest Aerospace Alliance has been promoting the growth and success of the region's aerospace industry with dynamic events designed to inspire aerospace leaders, connect aerospace interests, and educate policy makers.

Today, with members throughout the northwest and around...

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Take a Tour of Custom Interface

"To build long-term relationships, we try really hard to say yes. We try to make it simple, and we keep our commitments. These are the reasons we are going to celebrate 25 years of success in a few months." - Nancy White, CEO

Consider the evolution of technology and how people work, live and...

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Is your wire harness flexible enough?

Designing a wire harness is simple, right? Just pick out an appropriate wire for your voltage and environmental requirements, select a connector that meets your needs, decide how long you need it to be, and you are off to the races.

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Rapid Prototyping

Interested in Rapid Wire Harness and Electromechanical Subassembly Prototyping?

Try our new Rapid Prototyping & Development service.

We can take your rough sketch to a tested prototype within one week of materials being available. Get your idea turned into an AS9100-quality engineering sample without the added time and expense of a full AS9102 First Article process.  


What our customers say

I’m so glad we received the Custom Interface cable assemblies so quickly for our aerospace program. These are priority items for our customer so we’re likely to ship them ahead of schedule.

L. Nevin
Senior Program Manager

From start-up to Fortune 1000, Custom Interface deserves consideration for any supply chain….

R. Anderson

They are especially proficient at providing guidance with cable designs to insure quality and reliability at the least possible cost.

B. Fritchie