ATR
ATR is the one of the world’s leading aerospace company and the largest manufacturer of regional aircraft.  ATR is headquartered in Toulouse, South of France. The website home page features information about new-generation turboprop, latest news, press releases and more. ATR has become the benchmark for regional turboprop aircraft with sales exceeding 1000 aircraft, with over 160 operators in more than 90 countries.
http://www.atr.fr/

AgustaWestland
AgustaWestland, the Anglo-Italian helicopter company owned by Italy’s Finmeccanica, is a total capability provider in the vertical lift market. AgustaWestland is more than just a helicopter manufacturer: it is a total rotorcraft capability provider.
http://www.agustawestland.com/

Airbus
Airbus is a leading aircraft manufacturer, with the most modern and comprehensive aircraft family.
http://www.airbus.com/

Finmeccanica
Finmeccanica is Italy’s leading manufacturer in the high technology sector and ranks among the top ten global players in aerospace, defence and security.
http://www.finmeccanica.com/

EADS
As a global leader in the aerospace and defence industries, EADS is at the forefront of some of the largest and most important success stories in recent years.
http://www.eads.com/

Boeing
Boeing is the world’s leading aerospace company and the largest manufacturer of commercial jetliners and military aircraft combined. The Boeing Company: Commercial Airplanes, Integrated Defense Systems, Boeing Capital Corporation, Phantom Works and more.
http://www.boeing.com/

Overview of the ATR Corporate information