| Abbott, Kirk | Chevron Phillips Chemical Co. Port Arthur |
| Abernathey, Kenna | Brand Energy & Infrastructure Services |
| Ackerman, Neil | OxyChem |
| Adame, Modesto | Chevron Phillips Chemical Co., LP |
| Adams, David | Hagemeyer North America |
| Adams, Derek | Seal Tech Inc. |
| Adams, Gerald | INEOS Olefins & Polymers USA |
| Adamski, Mark | BP |
| Adcox, Jack | Executive Catering |
| Addlestone, Steve | Eastman Chemical Company |
| Aguilar, Dave | Hagemeyer North America |
| Aguilera, Robert | Third Coast Terminals |
| Aguirre, Augusto | Sherwin Alumina Company |
| Ahmed, Shahbaz | Sea Lion Technology, Inc. |
| Ajibogun, Paul | INEOS Olefins & Polymers USA |
| Akin, Rich | S & B Engineers and Constructors, Ltd. |
| Akins, Brian | Veolia ES Technical Solutions |
| Al-Nahhas, Hanna | Securitas Security Services USA, Inc. |
| Alaniz, Nick | Celanese International |
| Albert, Steve | The Eads Company |
| Albrecht, Karen | The Dow Chemical Company - Seadrift Operations |
| Alder, James | Celanese |
| Alderman, John | RRS/Schirmer |
| Alderman, Tod | Austin White Lime Company |
| Aldredge, Alan | Kay Electronics, Inc. |