- Riedon For 45 years Riedon has been a vertically integrated, global leader in the design and manufacture of precision and power resistors. Utilizing the latest in wirewound, thin and thick film, and foil technologies, Riedon offers one of the broadest product ranges in the resistor industry. Riedon’s technical support team, customer service center, and manufacturing operations are headquartered in Los Angeles, US, with additional manufacturing in Tecate, Mexico. In addition, our Asian market is supported by our Shanghai support center. Riedon is clearly positioned to serve the global customer. Riedon has a product portfolio in excess of 70 unique resistor series and the capability to offer custom designed products with industry best lead times. Our products can be found in applications including white goods, automotive, power supplies, telecom, industrial, medical, aerospace and military. Riedon is a customer focused organization, determined to become your partner for your power resistor requirements. We do what we say!