Spherion Staffing Spherion Staffing Search | Advanced Search | New Members | Coupons and Discounts | All Categories   Employment & Staffing >> Employment Spherion Staffing 11 E. Superior Street, #150Duluth, MN 55802 | View on Google Maps (218) 722-8003 | (218) 576-9555 | fax: (218) 722-6067 Visit Site If your business isn't here, contact us today to get listed!