ADP (Automatic Data Processing)

ADP is one of the world's largest providers of payroll and human capital management (HCM) technology and services. Founded in 1949 as a manual payroll bureau in New Jersey, it now runs cloud-based platforms that pay and manage the workforces of more than a million clients across 140 countries, processing pay for roughly 42 million workers. Its business spans payroll, tax filing, benefits, talent, time and attendance, retirement services, and full HR outsourcing through its PEO arm.