We looked at employment rates for the top 25 architecture firms in the country by revenue using data from Architectural Record. Our study included: Gensler Perkins&Will HDR HKS, Inc. HOK Jacobs Stantec AECOM CannonDesign Skidmore, Owings & Merrill Perkins Eastman ZGF Architects KPF DLR Group NBBJ Corgan Leo A Daly Callison RTKL Populous IBI Group PBK PGAL SmithGroup Ware Malcomb Page Southerland Page