TrueBlue, Inc., together with its subsidiaries, provides specialized workforce solutions in the United States, Canada, and Puerto Rico. It operates through three segments: PeopleReady, PeopleManagement, and PeopleScout.

Kelly Services, Inc., together with its subsidiaries, provides workforce solutions to various industries. The company operates through five segments: Professional & Industrial; Science, Engineering & Technology; Education; Outsourcing & Consulting; and International.

TriNet Group, Inc. provides human resources (HR) solutions, payroll services, employee benefits, and employment risk mitigation services for small and midsize businesses in the United States.

ManpowerGroup Inc. provides workforce solutions and services in the Americas, Southern Europe, Northern Europe, and the Asia Pacific Middle East region.

Insperity, Inc. provides human resources (HR) and business solutions to improve business performance for small and medium-sized businesses. The company offers its HR services through its Workforce Optimization and Workforce Synchronization solutions that include a range of human resources functions, such as payroll and employment administration, employee benefits, workers' compensation, government compliance, performance management, and training and development services.

Kforce Inc. provides professional staffing services and solutions in the United States. It operates through two segments, Technology, and Finance and Accounting (FA).

Paychex, Inc. provides integrated human capital management solutions for human resources (HR), payroll, benefits, and insurance services for small to medium-sized businesses in the United States, Europe, and India.

Robert Half International Inc. provides staffing and risk consulting services in North America, South America, Europe, Asia, and Australia. The company operates through three segments: Temporary and Consultant Staffing, Permanent Placement Staffing, and Risk Consulting and Internal Audit Services.

Korn Ferry, together with its subsidiaries, provides organizational consulting services worldwide. It operates through four segments: Consulting, Digital, Executive Search, and Recruitment Process Outsourcing (RPO) & Professional Search.

Heidrick & Struggles International, Inc., together with its subsidiaries, provides executive search, consulting, and on-demand talent services to businesses and business leaders worldwide.

HireQuest, Inc. provides temporary staffing solutions in the United States. The company provides temporary staffing services, including skilled and semi-skilled labor and industrial personnel, clerical and administrative personnel, and construction personnel.