Terraform Industries says they'll start production of their terraformers in Q2, but they have to have a fully functional unit by the end of the year for this question to resolve to yes. They don't necessarily have to be selling them, so a prototype would be ok. The prototype would have to match the 1000 cubic feet per hour of natural gas claimed on their product page as of Feb 2024.

Related: this question about whether they will begin commercializing