SPR vs TNET Comparison

Spirit AeroSystems manufactures aerostructures, particularly fuselages, cockpits, wing sections, engine pylons, and nacelles for commercial and military aircraft. The company was spun out of Boeing in 2005 to become the largest independent supplier of aerostructures for commercial aircraft. Boeing and Airbus are the firm's primary customers—Boeing represented roughly 60% and Airbus roughly 20% of revenue in recent years. The company is highly exposed to Boeing's beleaguered 737 program, which accounts for nearly half the company's revenue. The company plans to be acquired by and reintegrated into Boeing in mid-2025.

TriNet offers outsourced payroll and human capital management solutions for small and midsize businesses via a professional employer organization model. Under the PEO model, TriNet enters a co-employment arrangement and acts as the employer of record for administrative and regulatory purposes for clients' employees, known as worksite employees. Clients leverage the scale and expertise of TriNet to access competitive employee benefits, share employment risk liability, access compliance support, and outsource mission-critical day-to-day HR functions such as payroll and tax administration. Following the acquisition of Zenefits and Clarus R+D in 2022, TriNet derives the minority of its revenue from self-service HCM software and R&D tax credit services.