The five largest suppliers of information technology staffing in the U.S. include Allegis’ TEKsystems. On Assignment Inc. (NYSE: ASGN), Randstad Technologies, Insight Global and ManpowerGroup Inc.’s (NYSE: MAN) Experis, according to Staffing Industry Analysts’ 2014 list of largest U.S. IT staffing firms.

Allegis’ TEKsystems division ranked as largest overall with market share of 12 percent. On Assignment — helped by its acquisition of Cybercoders in the fourth quarter of 2013 — ranked second with 5 percent market share. Randstad Technologies also had 5 percent market share, followed by Insight Global and ManpowerGroup’s Experis division, both with 4 percent.

The annual list of largest IT staffing firms includes companies with at least $100 million in U.S. IT staffing and talent engagement revenue in 2013. This year’s list included 39 firms with combined revenue of $15.3 billion and 62 percent market share. For comparison, the 32 firms on the list last year had combined revenue of $13.7 billion and 60 percent market share.

“The market share concentration of the five largest and 15 largest IT staffing firms remained roughly the same in 2013 at 30 percent and 48 percent of the market, respectively,” said Senior Research Analyst Timothy Landhuis. “This was the result of a lack of mega acquisitions in 2013, and also a reflection that the combined growth of the very largest firms kept pace with growth of the overall industry.”

Staffing Industry Analysts ranked companies by revenue, according to industry custom, but this ranking should not be taken to imply that a firm with a higher rank provides better service or more value to its shareholders.

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