| Alexander D. | McSwain | | Belton | Details |
| Denise Clark | McWatters | HollyFrontier Corporation and Holly Energy Partners L.P. | Dallas | Details |
| Stephen | Melendi | Tollefson Bradley Mitchell & Melendi LLP | Dallas | Details |
| Clayton | Melton | XL Insurance Select Professional | Dallas | Details |
| Katherine Mendiola | Wyatt | Skelton & Woody, PLLC | Austin | Details |
| Ashumi P. | Merchant | Clover Health | New York | Details |
| William | Merlin Jr. | Merlin Law Group | Tampa | Details |
| Shannon P. | Meroney | Meroney Public Affairs | Austin | Details |
| David J. | Metzler | Cowles & Thompson P.C. | Dallas | Details |
| Maurice Joseph | Meynier IV | Meynier & Matte | Houston | Details |
| Andrew Joseph | Mihalick | Kane Russell Coleman & Logan PC | Houston | Details |
| John | Milano Jr. | Attorney at Law | Richardson | Details |
| Karen | Milhollin | Hall Maines Lugrin P.C. | Houston | Details |
| Gina Renee Byrne | Miller | National Western Life Insurance Company | Austin | Details |
| Kleber C | Miller | Lacy Lyster Malone & Steppick | Fort Worth | Details |
| Allison Rose | Miller | Daw & Ray L.L.P. | Houston | Details |
| J. Robert | Miller Jr. | Miller & Brown LLP | Dallas | Details |
| R. Travis | Miller Jr. | | Fort Worth | Details |
| Sean | Milligan | Travelers | Houston | Details |
| John A. | Millin IV | Millin & Millin PLLC | McAllen | Details |
| Peter W. | Mills | Bonilla Law Firm | Austin | Details |
| Dana | Minissale | Southern Methodist University | Dallas | Details |
| Aaron L. | Mitchell | Tollefson Bradley Mitchell & Melendi LLP | Dallas | Details |
| Markeyta | Mitchell | | Dallas | Details |
| Sarah | Mitchell | Vinson & Elkins LLP | Dallas | Details |
| Charles B. | Mitchell Jr. | Naman Howell Smith & Lee PLLC | Fort Worth | Details |
| Robbie Allen | Moehlmann | Walker Wilcox & Matousek LLP | Houston | Details |
| Leigh Skye | Montgomery | Hughes Ellzey | Houston | Details |
| Christine Marie | Montoya | State Farm Insurance | Lago Vista | Details |
| Valerie Brooke | Montoya | The Montoya Firm | Plano | Details |
