HGA Architects and Engineers  has hired Gregory A. Hamilton as a senior associate. Hamilton will lead the firm's field office in Voorhees, N.J., to serve expanding client needs in the region.

Architecture/engineering firm Westlake Reed Leskosky has promoted Angela Mazzi, AIA, NCARB to associate principal and director of healthcare programming and planning.  

KI has promoted Jonathan Webb to vice president of business markets.  

American Clay Enterprises Inc. has announced the appointment of Peggy Cunningham as sales team manager.  Cunningham will be responsible for facilitating the regional and national availability and application of American Clay's earth friendly, natural wall plaster finishes – both interior, and the upcoming exterior launch.   

DEGW, the international design consultancy specializing in the changing nature of work and learning environments, has announced the appointment of the company's new group CEO, Gerard Corcoran

Zyscovich Architects, a firm with offices in Miami and New York City, promoted Susan Dimond and Alyssa Kriplen to associates of the firm.

David L. Rush has joined global architectural design firm HOK Atlanta as interiors design director. At HOK, Rush will lead design for the interiors practice, ensuring consistency and high quality across all project types, and helping to build on the firm's standards of excellence.