Washington Inventory Service is among the oldest national inventory services in the United States with nearly 50 years of experience. Washington Inventory has conducted more than 1 million physical inventories in all 50 states, as well as Europe, South America and Asia. The company services all retail classes of trade from convenience stores to large department store chains. Washington Inventory has offices located throughout the world. A merger between Washington Inventory Service and Western Inventory Service has created WIS International. It has broader geographic coverage, greater capacity and a synergy of vision to meet the expanding needs of customers. The newly-formed WIS International allows the company to continue to develop innovative solutions for the changing needs of the industry. Washington Inventory has retained its name since the merger, as has Western Inventory. The company s headquarters are maintained in San Diego, Calif. The Bettendorf, Iowa, branch operates inventory services for Washington Inventory Service clients in eastern Iowa and western Illinois.