This year, SIA identified 71 firms with $100 million or more in IT staffing revenue, according to its Largest IT Staffing Firms in the US: 2023 Update report. These largest firms posted revenue of $34.6 billion and accounted for 83% of the market. 

“The record number of firms on this year's report highlights the growth and dynamism of the IT staffing space,” SIA President Barry Asin said. “We congratulate these large IT staffing players on their growth and accomplishments.” 

The five largest firms are: 

Eleven firms are included in this year’s ranking that did not appear in last year’s report: Advantis Global, Ampcus, eTeam, GDH Consulting, HCL Global Systems, Horizontal, Inspyr Solutions, Mondo, Pride Global, Tandym Group and Triple Crown Consulting. 

One note: Although firms provided revenue numbers in many case, there was variance in degree of financial transparency. Revenue for all firms on this list should be considered and estimation by Staffing Industry Analysts. 

Corporate members of Staffing Industry Analysts can download the report with the full list of 71 firms.