At RGIS (formerly RGIS Inventory Specialists), you can count on a lot of counting. Along with WIS International, the company is one of the leading third-party inventory takers in the US. RGIS employees count inventory for their customers, primarily large retailers but also manufacturers. Employees use scanners that send information to a computer system at RGIS headquarters. The company operates from facilities throughout the US, Canada, and Mexico, as well as in the Asia/Pacific region, Europe, the Middle East, and South America; it has more than 400 offices overall. Investment firm The Blackstone Group owns a controlling stake in RGIS, which was founded in 1958.