Spherion[1] is a North American temporary work agency[2][3] headquartered in Atlanta, Georgia, that operates under a variety of brand names.

[2] Spherion was first known as City Car Unloaders, a Chicago[4][5][6] company created by Leroy Dettman and Joseph Perfetto in 1946.

[8] In 1991, H&R Block acquired Interim Systems Corporation and combined it with Personnel Pool, creating a larger staffing services firm.

Norrell Corp. Part of Fort Lauderdale-based Spherion's board of directors wanted to move corporate headquarters to Atlanta, a conflict that ended when Marcy was replaced by Hallman in 2001.

[11] In 2001 Spherion made an initial public offering (IPO) of its London-based Michael Page Group, which it acquired in 1997.