PAYX

Paychex, Inc.

A provider of payroll, human resources, benefits, and insurance services for small and mid-sized businesses, offering cloud-based tools like Paychex Flex and AI-driven technology that serves roughly 840,000 customers. It was founded in 1971 in Rochester, New York, by Tom Golisano, who left a payroll firm that ignored small employers and started his own with just a few thousand dollars. The name is a blend of "payroll" and "checks," and its purchase of Paycor in 2025 widened its reach into larger companies.