SLF vs PAYX Comparison

Sun Life Financial is one of the Big Three Canadian life insurers. The Canadian business contributed around 35% of its 2025 adjusted earnings. In that segment, the firm provides health, life insurance, and annuity products to individual and group customers. Its US business is mostly group health and contributed about 17% of the firm's adjusted earnings in 2025. Sun Life also offers life insurance and wealth products in several Asian markets with a strong presence in Hong Kong and the Philippines. The Asia segment contributed around 18% of adjusted 2024 earnings. Its asset management business had around CAD 1.2 trillion total assets under management or administration at the end of 2025 and represents around 30% of the firm's earnings.

Paychex is a cloud-based human capital management provider offering payroll, compliance, talent management, benefits administration, and retirement services. The firm also provides HR outsourcing services, including professional employer organization, or PEO, offerings, enabling clients to reduce HR overhead. Paychex primarily targets small and midsize businesses, although its acquisition of Paycor in 2025 signals the firm's aspirations to expand into the midmarket segment, serving firms with more than 100 employees. As of fiscal 2026, Paychex has approximately 800,000 clients and manages payroll for one in 11 workers in the United States.