Trucking Company, Shipping Companies, Pier Trucker, Seattle, WA Every day, millions of tons worth of cargo is transported around the world, many of which, are destined for the ports of the United States of America. Visit shipping companies in seattle for more info Shippers Transport Express are a professional and trusted team of cargo transport specialists, serving the Pacific Northwest, of the United States. We are based out of the city of Seattle, from where, we serve some of the biggest shipping traffic in the country. Offering our services in the ports of Seattle and Tacoma, we see a constant flow of national and international clients.