ADP vs TDG Comparison

Automatic Data Processing is a global technology company providing cloud-based human capital management solutions, enabling clients to better implement payroll, talent, time, tax, and benefits administration. Additionally, ADP provides human resource outsourcing solutions that permit customers to offload some of their traditional HR tasks. The company operates through two segments: employer services and professional employer organization services. Employer services consist of the company's HCM products as well as a la carte HRO solutions. PEO services contain ADP's comprehensive HRO solution, where it acts as a co-employer with its customer. As of fiscal 2025, ADP serves over 1.1 million clients and pays over 42 million workers across 140 countries.

TransDigm manufactures and services a broad set of specialized parts for commercial and military aircraft. The firm organizes itself in three segments: power and control, airframes, and a small non-aviation segment, which serves mostly off-road vehicles and mining equipment. It operates as an acquisitive holding company that focuses its portfolio on firms that make proprietary aerospace products with substantial aftermarket demand. TransDigm regularly employs financial leverage to amplify its operating results.