AAR Corp – Aerostrat Software — AERROS

Aerostrat, a Seattle-based company founded in 2015 by software and aviation veterans, built AERROS, a Heavy Maintenance Resource Organizer covering long-range planning, check induction, and check production. AERROS now supports more than 5,000 aircraft and works regardless of the maintenance ERP an operator already runs.

Aerostrat is a Seattle based software company founded in 2015 that builds Aerros, a long range heavy maintenance planning and scheduling system for airlines and MROs. Aerros covers long range planning, check induction and check production, forecasts maintenance cost and capacity, optimizes yield on a per task basis, and runs unlimited what if scenarios on aircraft and slot allocation. It is ERP agnostic and runs alongside whichever maintenance system an operator already uses, supporting more than 5,000 aircraft. Published customers include Southwest, Delta, American, JetBlue, FedEx, SkyWest, Republic Airways, Endeavor Air, PSA Airlines, Horizon and Virgin Australia. AAR Corp acquired Aerostrat in August 2025 for 15 million US dollars plus up to 5 million in contingent consideration, and Aerros continues as a standalone product alongside AAR's Trax suite.