PAYX vs SUNB Comparison

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 2025, Paychex has approximately 800,000 clients and manages payroll for one in 11 workers in the United States.

Sunbelt Rentals (formerly UK-based Ashtead Group) is the number two equipment rental company in the US (11% market share), with a smaller presence in Canada and the UK. Sunbelt operates a rental fleet of just over $15 billion across a network of 1,200 stores in the US, nearly CAD 2 billion of fleet and 135 stores in Canada, and GBP 1.1 billion and 190 stores in the UK. The company has experienced rapid growth over the past decade as its customers increasingly turn to rental versus owning equipment outright. The general tool business has been augmented by the Specialty Rental business, which has grown to 30% of the mix. Revenue is now greater than 50% nonconstruction, with the remainder focused more directly on commercial construction.