Mergers and acquisitions.Austin Veum Robbins Parshalle (AVRP), a San Diego-based architecture firm, has acquired Siegel Diamond Architecture (SDA) of Los Angeles and established a Los Angeles office. SDA's former partner-in-charge, Katherine Diamond, has joined Lennar Communities' Urban Development Group, but she will work with AVRP on projects.
Highlands Ranch, Colo.-based Arcadis G&M has formed Arcadis Communications Construction LLC.
Long Beach, Calif.-based Perkowitz + Ruth Architects has opened an office in Las Vegas. Director is Rudolph Starks Jr.
Engineering firm Gage-Babcock & Associates Inc. has moved its corporate offices from Fairfax to Chantilly, Va., and named Andrew B. Bowman principal and office manager of the Chicago office.
Springfield, Ill.-based Hanson Engineers Inc. has changed its name to Hanson Professional Services Inc.
Ware Malcomb, an Irvine, Calif.-based architectural firm, has opened an office in Greenwood Village, Colo.
The New York City-based architectural firm John Ciardullo Associates has established an office in Hackensack, N.J.
Engineering firm Walter P. Moore, which is based in Houston, Texas,has opened an office in Austin, Texas.
On the move. A/E SSOE Inc., which is based in Toledo, Ohio, has appointed Tony D. Damon CEO.
Jack Waldron is chief operating officer of T.Y. Lin International, a civil and structural engineering firm based in San Francisco.
Edward Yoo has been named director of operations and Kent Johnson director of engineering for Kahn Manufacturing Solutions Inc., a new subsidiary of Detroit-based A/E Albert Kahn Associates Inc.
Richard M. Harris has been named senior vice president of Houston-based FKP Architects Inc.
