A new report counted $100 billion in spend under management by vendor management systems and managed service providers in 2011. The report, “2012 VMS and MSP Competitive Landscape” by Staffing Industry Analysts, surveyed 36 VMS and MSP firms. The amount of spend under management was up from the $84 billion in spend accounted for in last year’s report.

Adecco Solutions ranked as the largest MSP provider among survey participants with $8.6 billion in spend. Fieldglass Inc. ranked as the largest VMS provider with $21.5 billion in spend.

Key contingent workforce management trends identified in the report include:

• Mergers and acquisitions among providers
• Global expansion
• Growth in both mid-market and large programs

The report also found that statement-of-work spending in VMS and MSP programs rose by more than 20 percent in 2011.