Trex SA engages in the provision of financial consultancy services. It operates through the following business segments: Audit 1, Audit 2, Outsourcing, Taxation, Training, and Others. The Audit 1 segment includes audit, financial statements review, and its related services for the corporate sector. The Audit 2 segment refers to audit, financial statements review, and other services for public, small and medium enterprises. The Outsourcing segment provides bookkeeping and staffing services. The Taxation segment involves tax consultancy services. The Training segment covers accounting and tax training services. The company was founded in 1986 and is headquartered in Warsaw, Poland.