Officers 2023-2024
Chair
Ryan Sowa, P.E.
Kimley-Horn & Associates, Inc.
ryan.sowa@kimley-horn.com 210.321.3414
Chair-Elect
Gabe Villarreal, P.E.
HDR
gabriel.villarreal@hdrinc.com 210.841.2921
Secretary/Treasurer
John Colquhoun, P.E.
BGE, Inc.
jcolquhoun@bgeinc.com 210.581.3600
Immediate Past President
Edward F. Herolt, P.E.
Halff
eherolt@halff.com 210.798.1895
ACEC Texas Directors – San Antonio
Past Chair, ACEC Texas
Derek Naiser, P.E. – Ardurra
dnaiser@ardurra.com 210.822.2232
Chair Elect, ACEC Texas
Dawn Green, P.E. – KCI Technologies, Inc.
dawn.green@kci.com 210.641.9999
Director, ACEC Texas
James Lutz, P.E. – Pape-Dawson Engineers
jlutz@pape-dawson.com 210.375.9000