PO Box 605       
410 S. Larch St., Bingen, WA 98605       
CALL:  (509) 493-8756   

World Class Contract Manufacturer

Specializing in Electrical Wire & Cable Harnesses and Electromechanical Assemblies


Commitment to Quality.


Turn-key cable or electro-mechanical 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:

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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Wire Length Tolerances

Our customers frequently ask us what tolerances should be used in regard to length of a harness assembly. There are some instances where a custom tolerance may need to be considered in order to meet a particular form, fit, and function for an assembly. However, in the vast majority of cases, our...

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Common Problems with Wire and Cable Harness Drawings

There are three problems that show up repeatedly in wire and cable harness assembly drawings which cause the drawing to have to be reworked, resulting in days or weeks in delays before you receive your First Article.

Help your contract manufacturer help you get your harnesses as quickly as...
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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