With merger completed, design firm makes senior appointments

Callison and RTKL have officially joined forces as CallisonRTKL.



The firm announced several senior-level appointments to launch its next level of growth:



Eric Lagerberg (New York) has been named executive VP and will serve as global practice group leader for retail stores and regional director of North America for CallisonRTKL.



Lagerberg, who previously served as managing principal of Callison’s New York office, will be a senior business leader operating at a global level and oversee the strategic direction of the retail stores practice group. He has more than 25 years of experience on projects spanning the globe.



Matt Billerbeck (Seattle) has been named senior VP and will lead the shopping & entertainment districts team for the commercial practice group. He has more than 20 years of experience planning and designing retail and mixed-use projects around the world.



David Cassidy (Dallas) has been named senior VP and will lead the department stores team for the retail stores practice group and serve as office director in Dallas. He will also serve as the acting leader for the Latin America region in the retail stores group.



Cassidy previously led Callison’s Dallas and Mexico City offices.



Paul Makowicki (Seattle) has been named senior VP and will serve as office director in Seattle. Makowicki will work with the firm’s Seattle team as well as the local and regional development communities to elevate the profile of the Seattle office to address client and market needs.



Sterling Plenert (London) has been named executive director and will head the luxury retail team for the retail stores practice group. He has more than 28 years of experience in the architecture industry and 20 years in the luxury retail world.



Mike Riggs (Seattle) has been named senior VP and will serve as the regional practice group leader of North America for the retail stores group in addition to leading the firm’s new development programs for retail stores globally.



Alex Shapleigh (Seattle) has been named senior VP and will head the specialty retail team for the retail stores practice group. He will lead the design for specialty retail projects. His areas of expertise include prototype development and retail technology. Shapleigh collaborates closely with Seattle-based retailer REI to develop and lead the concept design for their retail stores across the nation.



Ro Shroff (Seattle) AIA has been named senior VP and will lead the firm’s “Tall Buildings” initiatives.



Ron Singler (Seattle) has been named senior VP and will lead the retail stores: Nordstrom team in the retail stores practice group. Singler previously served as a design principal for the Nordstrom studio.