Staffing Firm Lists & Market Share

2011 Largest-, Fastest-growing Lists’ Late Additions, Updates

November 9, 2011

  • 2011 lists of largest- and fastet-growing firms gets update
  • Five new firms cataloged
  • Updates information for others

Differentiators of the Most Successful Staffing Firms

October 19, 2011

  • Underlying trends seen in the Fastest-Growing Staffing Firms list
  • The high-growth, local-branch business model
  • The high-volume, centralized business model

Differentiators of the Most Successful Staffing Firms - September 2011

September 27, 2011

  • High growth local branch model
  • High volume/centralized delivery model
  • Watch full webinar on demand (1 hr.)

The 2011 Book of Lists: A complete collection of staffing firm rankings and lists

August 11, 2011

  • Compilation of all 26 SIA annual lists in one sortable Excel workbook
  • Ranks hundreds of staffing firms' staffing revenue domestically, globally, and by staffing sector
  • Opportunity lists: fastest-growing, diversity, mentors/proteges, acquirers

2011 List of Largest U.S. Staffing Firms

August 3, 2011

  • Lists 98 companies with at least $100M in U.S. staffing revenue
  • Top three: Allegis Group, Adecco, ManpowerGroup
  • Companies cumulatively represent 53% of U.S. staffing market

2011 List of Largest Global Staffing Firms

August 3, 2011

  • Lists 86 companies with at least $300M in global staffing revenue
  • Top three: Adecco, ManpowerGroup, Randstad Holding
  • Companies cumulatively represent $150B of global staffing market

2011 List of Largest Global IT Services Firms

August 3, 2011

  • Lists 27 companies with at least $300M in global IT services revenue
  • Top three: Capgemini, Infosys Technologies, TATA Consultancy Services
  • Companies cumulatively represent $47B of global IT services market

2011 List of Largest Global Engineering Services Firms

August 3, 2011

  • Lists 10 companies with at least $300M in global engineering services revenue
  • Top three: Adecco, Aerotek (Allegis), Brunel
  • Companies cumulatively represent almost $6 billion of global engineering services market

2011 List of Diversity Staffing Firms

July 27, 2011

  • Lists 118 diversity-owned staffing firms
  • Diversity defined as woman- and-minority owned, service-disabled veterans, HUBZones among others

2011 List of Largest U.S. Engineering Staffing Firms

July 27, 2011

  • Lists 17 companies with at least $50M in U.S. engineering staffing revenue
  • Top two: Aerotek (Allegis), Adecco
  • Companies cumulatively represent 64% of U.S. engineering staffing market