Westaff Inc. (NASD: WSTF) signed a contract to serve as a single source provider of contingent staffing for SIRVA Inc., a Chicago-based moving and relocation company with brands that include Allied and northAmerican International. Westaff will provide office/clerical and information technology workers to eight of SIRVA's offices.

The contract is in effect now and lasts one year with the possibility of renewal.