Metro Aviation, Inc., based in Shreveport, Louisiana, United States is a worldwide provider of completion services for all missions and types of helicopters and specializes in the EC135 and EC145 with several Supplemental Type Certificates (STC) developed by the company for these and other aircraft. Metro is an FAA approved repair station, approved Airbus (Eurocopter) Service Center and FAR Part 135 air medical operations provider at several locations across the United States. The company is privately held and is one of the largest traditional air medical providers in the country.