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.

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

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.

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.

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

Hudson Global, Inc. provides talent solutions for mid-to-large-cap multinational companies and government agencies under the Hudson RPO brand in the Americas, the Asia Pacific, and Europe.

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

Automatic Data Processing, Inc. provides cloud-based human capital management solutions worldwide. It operates in two segments, Employer Services and Professional Employer Organization (PEO).

Barrett Business Services, Inc. provides business management solutions for small and mid-sized companies in the United States. The company develops a management platform that integrates a knowledge-based approach from the management consulting industry with tools from the human resource outsourcing industry.