RGIS Inventory Specialists in Tulsa, Okla., is one of more than 400 offices the company maintains throughout the world. RGIS is one of the largest inventory service businesses in the world, and serves a variety of companies, including Global 500 and Fortune 500 corporations. Its inventory services include stock-on-hand counts, replenishment data, shelf price audits, UPC and SKU cross-references and account management. The company also provides trained inventory associates and advanced inventory equipment, such as audit microcomputers and radio frequency technology. RGIS also provides a number of business services, such as auditing, blitz merchandising, product retrieval, fixed asset inventories and scan-based trading. RGIS was founded in 1958 and maintains its headquarters in Auburn Hills, Mich.