TD Group, through its subsidiary TransDigm Inc., operates as a leading designer, producer, and supplier of highly engineered aircraft components for both commercial and military aircraft. The company's diverse range of products primarily includes proprietary parts, generating substantial aftermarket revenue that comprises approximately 56% of its net sales as of fiscal year 2023. The business is segmented into Power & Control, Airframe, and Non-aviation, providing specialized components and systems to various aerospace applications.
TransDigm focuses on developing customized products to meet the specific needs of customers while ensuring high quality and performance. By prioritizing aftermarket sales and obtaining long-term supplier relationships, the company engages with a customer base that includes airlines, military agencies, and OEMs. With an estimated product lifecycle exceeding 50 years, TD Group benefits from steady sales growth and significant profitability from the aftermarket, distinguishing itself within the aerospace component industry.