TEC Equipment | 15,034 followers on LinkedIn. Your Leading Full-Service Truck and Trailer Dealership | TEC Equipment was founded in 1976 by David Thompson. As your leading full-service truck and trailer dealership, we deliberately and consistently delight and inspire our customers every day by providing products and services with an exceptional customer experience. Headquartered in Portland, Oregon, TEC has 30+ locations from Seattle to San Diego, serving thousands of customers across Washington, Oregon, California, Nevada, Arizona, Nebraska, Iowa, and South Dakota.