Electronics, Inc.


We offer a comprehensive range of products and services for our clients.

We are your reliable supplier.

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About Us


Welcome and thank you for taking the time to visit the Rel-Tech Electronics website. Rel-Tech is a world-class ISO9001-2015 approved manufacturer of cable assemblies and wiring harnesses, supplying leading companies that require a high level of precision, performance and reliability. We are your manufacturing partner to meet your stringent requirements and unique demands


Rel-Tech was founded in Bridgeport, CT by Bill LeBlanc and Ralph Palumbo in 1986. Both managed divisions for larger corporations before establishing Rel-Tech. Since its inception, the firm has increased its staff, hiring personnel with experience in both engineering and contract manufacturing. Our middle and upper managers have been employed in excess of 10-15 years. The expertise of our staff guarantees that you will receive the highest quality products and services to meet your stringent requirements.

Today, our operations are fully equipped with state of the art manufacturing, testing, and quality assurance equipment for the efficient processing of all prototype and low and high volume orders.

From management and engineering to sales and customer service our goal is consistent: Deliver the highest quality cable and wire assemblies, on time, at competitive pricing and provide the best customer service.

wiring harness

Services and Capabilities

Rel-Tech Electronics is a leading manufacturer of custom cable assemblies and wire harnesses. Our staff has decades of design engineering and cable assembly and wire harness building experience. We offer a full range of value-add services including product design assistance, prototyping, stocking, BOM management, consignment and fulfillment programs.

cable harnesses
  • Custom wire harnesses
  • Ribbon cable assemblies
  • Electromechanical assemblies
  • Kitted assemblies
  • Network and Communication cables
  • DIN and Mini DIN connector assemblies
  • Power Cord Assemblies
  • Coaxial Cable Assemblies
  • Mil-Spec cable assemblies
  • Testing
  • Engineering Design Support


Rel-Tech provides engineered solutions to many leading OEMs. We are a world class supplier and meet the complex needs of todays’ leading industries by delivering on-time, high quality and cost effective manufacturing solutions that strives to exceed the requirements of our diverse customer base.

Defense / Military
Oil & Gas
Industrial Equipment

Quality and Testing

An ISO-9001-2015 company that delivers world class quality to our customer. All manufactured cable assemblies and wire harnesses are 100% tested to your specifications. Rel-Tech Electronics has a long standing reputation for providing high quality products to its customers. Our facility is fully equipped with test equipment to monitor and test products to industry and customer specifications.

  • ISO-9001-2015 Certified
  • IPC620
  • UL Approvals
  • RoHS/REACH compliant
  • Extensive in-house test equipment
View ISO Certificate

Contact Us


215 Pepe's Farm Road
Milford, CT U.S.A 06460

Office Phone