CHC Helicopter is a large helicopter services company, specializing in the following services:, CHC Helicopter is headquartered in Richmond, British Columbia, Canada and operates more than 250 aircraft in 30 countries around the world. CHC's major international operating units are based in Australia, Brazil, Ireland, the Netherlands, Norway, and the United Kingdom. The company is one of several global providers of helicopter transportation services to the offshore oil and gas industry . CHC has capabilities in precision flying techniques and technical support.[clarification needed], CHC has long-term working relationships with most of the major oil and gas companies. CHC operates the marine search and rescue service for the Irish Coast Guard at Shannon, Waterford, Sligo and Dublin airports. CHC provides helicopter services in Australia for the Fire and Emergency Services Authority of Western Australia, Victoria Police and the Ambulance Service of New South Wales.