Staffing - Professional

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. 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

2011 List of Largest U.S. Finance Staffing Firms

July 26, 2011

  • Lists 12 companies with at least $50M in U.S. finance/accounting staffing revenue
  • Top company: Robert Half International
  • Companies cumulatively represent 56% of U.S. finance/accounting staffing market

2011 List of Largest U.S. Clinical/Scientific Staffing Firms

July 26, 2011

  • Lists 13 companies with at least $25M in U.S. clinical/scientific staffing revenue
  • Aerotek (Allegis), Kelly top two
  • Companies cumulatively represent 74% of U.S. clinical/scientific staffing market

2011 List of Largest U.S. Legal Staffing Firms

July 26, 2011

  • Lists five companies with at least $25M in U.S. legal staffing revenue
  • Top company: Adecco
  • Companies cumulatively represent 43% of U.S. legal staffing market

2011 List of Largest U.S. Marketing/Creative Staffing Firms

July 26, 2011

  • Lists three companies with at least $25M in U.S. marketing/creative staffing revenue
  • Top company: Aquent
  • Companies cumulatively represent 29% of U.S. marketing/creative staffing market

Legal Staffing Growth Update: March 2011

April 1, 2011

  • Legal staffing began to recover in 2010
  • Foreign Corrupt Practices Act continues to drive demand for contract attorneys
  • Updated forecast to be released in April

Marketing/Creative Growth Update: March 2011

March 31, 2011

  • Marketing/Creative staffing began to recover in 2010
  • Greater employment demand seen in advertising and graphic design
  • Updated forecast to be released in April

Finance/Accounting staffing growth update: March 2011

March 31, 2011

  • Mortgage-driven business continues to grow
  • Recovery in F&A becoming broader
  • Updated forecast to be released in April

Clinical/Scientific staffing growth update: March 2011

March 31, 2011

  • Demand from pharma to be shaky through 2012 due to restructuring
  • Financing difficulty in biotech is easing a bit
  • Updated forecast to be released in April