International Airlines Group is one of the world's largest airline groups with 377 aircraft flying to 200 destinations and carrying more than 54 million passengers each year. It is the third largest group in Europe and the sixth largest in the world, based on revenue. Formed in January 2011, IAG is the parent company of British Airways, Iberia and bmi. It is a Spanish registered company with shares traded on the London Stock Exchange and Spanish Stock Exchanges. The corporate head office for IAG is in London, UK. IAG combines the leading airlines in the UK and Spain, enabling them to enhance their presence in the aviation market while retaining their individual brands and current operations. The airlines' customers benefit from a larger combined network for both passengers and cargo and a greater ability to invest in new products and services through improved financial robustness. The airline industry is moving gradually towards consolidation though some regulatory restrictions still prevail. IAG's mission is to play its full role in future industry consolidation both on a regional and global scale British Airways and Iberia are members of the oneworld alliance.