Atlanta Development Authority — Tom DiGiovanni has joined the agency as chief financial officer. Previously, he was president for Seattle-based New-house Development Co.
Nolte Associates — Ken Rudolph, senior vice president for the Sacramento, Calif.-based engineering firm, has been named president and chief executive officer.
American Water Works Association — Mike Leonard, Roswell, Ga.’s water operations manager, has been named president of the Denver-based association.
MACTEC — Ann Massey, North Division manager for the Alpharetta, Ga.-based company, has been named president and chief executive officer.