From RNs in Rhode Island to psychiatrists in St. Croix, Worldwide Travel Staffing (WTS) provides nurses, psychiatrists, and other medical personnel to hospitals in the US, the Caribbean, and about a dozen other international locations. Its 30,000 personnel, in 20 different specialties, staff hospitals and clinics for short- and long-term assignments. Traveling nurses typically make more than their stay-at-home counterparts; WTS also pays standard benefits and referral bonuses. In addition to traditional hospital duty, its staff often volunteers for disaster relief in places like post-Katrina Louisiana, and in South America and Africa. The company, which was formed in 1993, is owned by its employees.