On Assignment Allied Travel is a leading provider of medical professionals to serve the ever increasing shortage across the nation. Divisions include: On Assignment Allied Travel, On Assignment Nurse Travel, On Assignment Healthcare Staffing, On Assignment Health Information Management, On Assignment Lab Support US, UK, The Netherlands, Belgium and Ireland, On Assignment Clinical Research, On Assignment Engineering, Oxford Global Resources(IT and Engineering), and VISTA Staffing Solutions (Locum Tenens and Physician Search).