How Many People Work at ADP? Headcount and Employee Trends

ADP is a global human-capital-management and payroll technology provider that employs more than 37,000 people worldwide. Recent staffing data show 1,761 new hires and 2,065 departures, resulting in a marginal net decrease in overall headcount. This near-flat movement indicates a largely stable workforce while the company continues to refine its mix of talent across functions and regions.

Sales and Support is ADP’s largest function with about 10,300 employees, representing roughly one-quarter of the organization. Engineering follows at just under 6,900 team members, underscoring the company’s investment in product development and platform reliability. Marketing and Product teams account for a further 6,000 employees, while Human Resources, Finance & Administration, and Business Management each contribute between 2,600 and 3,000 employees. Smaller but still significant groups in Program & Project Management, Operations, Consulting, and an "Other" category round out the staff, illustrating a balanced distribution between client-facing roles and internal enablement functions.

Employee data point to a widely distributed workforce. Approximately 80 % of staff are spread across numerous "Other" locations worldwide, highlighting ADP’s broad footprint and remote-friendly approach. The largest named hub is New York, hosting about 1,800 employees. Additional U.S. concentrations include Atlanta, El Paso, Alpharetta, Allentown, Chicago, Louisville, and Augusta, each employing between 400 and 1,200 people. Hyderabad serves as a prominent international site with more than 600 team members, showcasing the company’s multi-continent talent strategy.