Rolls-Royce Holdings
The largest aerospace suppliers are United Technologies with $28.2 Billion of revenue, followed by GE Aviation with $24.7 Billion, Safran with $22.5 Billion, Rolls-Royce Holdings with $16.9 Billion, Honeywell Aerospace with $15.2 Billion and Rockwell Collins including B/E Aerospace with $8.1 Billion.