Diamond Aircraft Industries is a worldwide operating composite aircraft manufacturer with offices in major centers across North America, Europe, Asia and Australia. There are two production facilities: one located in Wiener Neustadt, Austria, where head office, research and development operations are conducted, and one in London, Ontario, Canada. At both facilities innovative aircraft solutions, of the highest level and quality are produced for flight schools and private operators.

The company employs 1200 people, and has already produced over 3,500 aircraft. Diamond Aircraft Industries (Canada) is the largest general aviation manufacturer of single engine aircraft in Canada, and the third largest in North America. Diamond Aircraft Austria is approved as a Design Organization (DOA) under (DOA No. EASA.21J.052 according to EASA Part 21 Subp. J) and is therefore authorized to largely independently develop internationally accepted aircraft design and modifications. As a manufacturer the corporation holds a "Production Organization Approval"(POA) (under (POA No. AT.21G.001 according toEASA Part 21 Subp. G) and the authorization to produce and inspect new aircraft and to deliver these with an Aircraft Statement of Conformity within the entire EASA area. Diamond Aircraft Canada holds Canadian Manufacturing Approval.

Diamond Maintenance has achieved EASA Part 145 approval (No. AT.145.044) and is now expanding its scope of work to perform maintenance on the DA42 Twin Star. Known as an international specialist in composite technology, Diamond Aircraft Industries is actively involved in many areas of material research, development and application. The company's expertise in advanced composite technology is being used to develop products for aerospace and defense applications which are in use worldwide.