Seattle-based Callison and Baltimore-based RTKL, two planning and design firms ranked as Interior Design 2015 Giants have officially joined forces as CallisonRTKL. The merger's chief goals are to expand the firm's footprint, allow for increased depth of services, and better meet both market and client demands. Both companies were previously acquired by the Netherlands-based Arcadis, a leading global design firm and consultancy.
CALLISON AND RTKL MERGE UNDER ARCADIS