Texas Comptroller: How to Register as a Texas Vendor https://comptroller.texas.gov/purchasing/vendor/registration State of Texas CMBL Vendor Registration HUB Certification Comptroller's website HUB Certification Register on the CMBL and HUB (if applicable) CMBL Vendor Registration Comptroller's website Comptroller's website How to Register for CMBL or HUB Register to be a State of Texas vendor HUB Application