The National Guard Association of Texas (NGAT) is a support organization for the Military Forces of Texas, including the Texas State Guard.

The National Hurricane Center provides vital information and advisories on hazardous tropical weather.

The State Guard Association of the United States (SGAUS) is a national organization of state defense forces, and is the source of Military Emergency Management Specialist (MEMS) program.

The Military Auxiliary Radio System is a Department of Defense sponsored emergency communications program, established as a separately managed and operated program by the Army, Navy and Air Force. The program consists of licensed amateur radio operators who are interested in military communications. They contribute to the MARS mission providing auxiliary or emergency communications on a local, national, and international basis as an adjunct to normal communications.

The Texas State Guard Nonprofit Association is a support organization for the TXSG. It is 501(c)(3). Contributions now are deductible under section 270 of the Code. The Non Profit is qualified to receive tax deductible bequests, devisees, transfer or gifts under section 2055, 2106 or 2522 of the Code.