Ramboll Environ, Inc., is a privately held, international environmental, safety and health sciences consulting firm headquartered in Arlington, Virginia. Formed by the December 2014 acquisition of ENVIRON by Danish-based Ramboll the firm has operations across 128 offices in 26 countries, with more than 2,100 consultants. Ramboll Environs work frequently involves addressing interrelated scientific, business and policy issues to help clients assess and mitigate potential risks, to ensure regulatory compliance or to achieve sustainable performance targets. The firm was founded as ENVIRON in Washington, D.C., in 1982. In 1996 the firm acquired EAG, a consulting firm in the United Kingdom. In 2003 ENVIRON merged with Applied Epidemiology, Inc., a provider of epidemiological consulting services in occupational health, environmental health and injury, and disability research. ENVIRON then merged in 2005 with The ADVENT Group, an engineering consulting firm specializing in industrial wastewater management and related areas, and developer of the patented ADVENT Integral System (AIS).