Calterm is a strong, recognized brand in the Automotive/Marine/RV industry with over 40 years of automotive experience providing and developing electrical accessories. Founded in 1974 in San Diego, California, Calterm introduced the first solderless terminals to the auto aftermarket.

As Calterm continued to grow, they began selling to national chains in the 1980's. Wiring, wire management, testers and switches were added to the product line and this expanded offering fueled the invention of a new product category: value-added kits.