TESTCO, LLC

Testco, LLC | Electronic Component Distribution For more than 30 years, Testco, LLC has supported technology companies worldwide as a trusted distributor of Interconnect, Passive, Electromechanical, and Sensor components. We specialize in delivering reliable component and supply chain solutions that keep manufacturing, testing, and innovation moving. Our focused line card features leading manufacturers such as Bel Fuse, Celduc, Coto, Comus, Dialight, E-T-A, Halo Electronics, Isabellenhütte, Ledex Solenoids, Pickering, Standex Electronics, Selec Controls, Paquin, Viking, and CIT Relay & Switch. Testco supplies a comprehensive range of products - relays, solenoids, sensors, LEDs, resistors, circuit protection, switches, and power components - serving customers across the semiconductor, test & measurement, medical, industrial, automation, consumer applications, defense, and more. Headquartered in Silicon Valley, Testco provides global distribution with daily shipments and personalized customer support. Our experienced team partners with engineers, sourcing teams, and management to solve complex design and supply chain challenges. We offer flexible procurement programs including blanket orders, bonded inventory, consolidated shipments, and annual pricing agreements - ensuring continuity of supply and streamlined logistics. Testco combines technical expertise with reliable delivery to provide quality components, dependable service, and creative sourcing solutions that power the world’s most advanced technologies.