- Advisory Commission on State Emergency Communications (ACSEC)
- Alliance for Telecommunications Industry Solutions (ATIS)
- Comptroller of Public Accounts
- Federal Communications Commission (FCC)
- Independent Telephone Pioneer Association (ITPA)
- Independent Telephone Pioneer Association-Texas Chapter
- Multimedia Telecommunications Association (MMTA)
- National Association of Regulatory Utility Commissioners (NARUC)
- National Exchange Carrier Association (NECA)
- National Rural Telecommunications Cooperative (NRTC)
- National Telecommunications & Information Administration (NTIA)
- National Telephone Cooperative Association (NTCA)
- Office of Public Utility Counsel (OPUC)
- Organization for the Promotion and Advancement of Small Telecommunications Companies (OPASTCO)
- Public Utility Commission of Texas (PUC)
- Rural Utilities Service (RUS)
- Telecommunications Industry Association (TIA)
- Telecommunications Infrastructure Fund Board (TIF)
- Telephone Maintenance Frequency Advisory Committee (TELFAC)
- Texas Department of Transportation
- Texas Engineering Extension Service (TEEX) Telecommunications Training Division
- Telecom Engineering Technology Program, ETID Department
- Texas One Call Board
- Texas Statewide Telephone Cooperative, Inc. (TSTCI)
- United States Telecom Association (USTA)
- Western Rural Telephone Association (WRTA)