PTB Group Ltd is engaged in the aviation business in Brisbane, Australia. It operates in business segments that are PTB, which specializes in PT6 and TPE331 Turboprop engines; PT USA, which specializes in PT6 Turboprop engines, it repairs and sells PT6 engines, maintains related engines under contract, and trades in related engine parts; PT Leasing, which is an aircraft and engine owner and leases aircraft and engines to operators under both operating and finance leases; IAP, which covers the operations of the IAP Group Australia Pty Ltd trading in aircraft, jet aircraft engines, airframes, and related parts. The PT USA segment generates maximum revenue for the company.