| Matt Rooker | Rooker Asphalt | VP |
| Matthew Rooker | Rooker Asphalt | (not set) |
| Ernesto Santillan | Ergon Asphalt & Emulsions | Area Sales Manager |
| Ken Sapien | Beyond Engineering and Testing | Executive Vice President |
| Nick Schack | Gulf Coast a CRH Company | VP/General Manager |
| Suzanne Schafer | Certarus CNG, Ltd | (not set) |
| Lee Scheel | Capitol Aggregates | (not set) |
| albert schlather | Hunter Industries,Ltd. /Colorado Materials | Asphalt Manager |
| Rick Schleider | Wright Asphalt | Sales Manager |
| Burl Schmitz | James Construction Group | Division Manager |
| Jim Scholl | Lhoist | Sales Manager |
| Eric Schranz | Austin Bridge and Road | Plant Operations Manager |
| Stephen Schuh | Capitol Aggregates | (not set) |
| Steven Simmons | Huitt-Zollars, Inc. | Vice President |
| Laraine Smith | Wright Asphalt | Sales Coordinator |
| Bruce Spracklen | Beyond Engineering and Testing | Vice President |
| Bruce Spracklen | Beyond Engineering & Testing LLC | Vice President of Business Development |
| Dan Staebell | Colorbiotics | Business Development Manager |
| Stephanie Sterba | Stansteel-Hotmix Parts | Exec. Asst. |
| Tim Stone | US Lime | Director of Sales |
