Gorrondona & Associates Inc. celebrated its 25th anniversary June 12. The firm has been in Austin for 10 years and is located at 4201 W. Parmer Lane, Bldg. B, Ste. 100. Its services include professional land surveying; aerial mapping; light detection and ranging, or LiDAR; and geotechnical engineering. 512-719-9933. www.ga-inc.net