CO Architects, a national design firm specializing in healthcare, education and research facilities, has recently promoted healthcare-focused “COworkers.” These elevations reflect the firm’s commitment to mentorship, staff development and employee retention. The promotions, listed below, span several titles and levels of experience.
Senior Associates
Aaron Horst, AIA, LEED AP BD+C, brings broad experience across higher education, healthcare and medical education projects. Since joining CO in 2018, he has applied his design expertise and team-focused approach to delivering highly functional environments.
Stephen Maher, AIA, NCARB, plays an integral role on several of CO’s large-scale healthcare projects, including UCI Health – Irvine, the country’s first all-electric healthcare complex. He helps keep teams aligned while navigating complex project delivery methods.
Associates
Erik Annis, NCARB, LEED AP, brings more than 30 years of experience as a laboratory planner for higher education, healthcare, government research and academic facilities. He applies extensive technical knowledge and strategic insight to deliver highly efficient laboratory environments.
Evelyn Ge, LEED AP BD+C, specializes in healthcare and medical education projects, supporting senior staff with presentations, project documentation and other coordination.
Kevin Staten, AIA, ACHA, NCARB, LEED GA, joined CO in 2024 as a medical planner whose work includes leading client user-group meetings. He also serves on the Steering Committee for AIA LA’s Architecture in Health group.

