SIA’s research has consistently found that statement-of-work management is an important part of contingent workforce program spend management. And the past five years have seen growth in SOW spend running through CW programs, rising to 29% in 2021 from 18% in 2017.
Year-over-year change in share of spend by work arrangement
Source: SIA’s VMS Global Landscape and Differentiators 2022 [1]