SpaceXAI

Who owns it

No filing-sourced ownership yet. That means we haven’t found a filing — not that the company has no owners.

What’s documented

• 2026-07-30regulatoryActionThe Mississippi Department of Environmental Quality and MZX Tech entered an agreed order allowing 13 of the 27 generators to keep running past the original 12-month deadline, with three of those permitted to remain active up to five months longer. The company agreed to begin retiring units on August 18, 2026. The extension was requested because supply-chain delays held up 41 permanent turbines that will carry air permits. MDEQ's original exemption had been contingent on the units being both mobile and temporary — meaning operating for less than 12 months.source →
• 2026-07-06otherxAI was dissolved as a separate company and rebranded SpaceXAI, folded fully into SpaceX with a new logo announced on X. Local outlets covering the Southaven turbines now name the operator as SpaceXAI.source →
• 2026-06-18legalProceedingThe US Department of Justice moved to intervene in the Clean Air Act case and have it dismissed, arguing national security. The Department of Defense Chief Digital and Artificial Intelligence Officer, Cameron Stanley, stated that Grok "represents one of only four proprietary state-of-the-art frontier AI currently capable of supporting national security applications" and that shutting the data center down would impair the Department's ability to maintain a technological advantage.source →
• 2026-06-15legalProceedingSouthaven residents living near the power plant filed their own suit over the turbines, following the NAACP federal complaint.source →
• 2026-06-12otherSpaceX — which had acquired xAI and X in an all-stock merger closing in February 2026 — listed on the Nasdaq under the ticker SPCX, selling 555.6 million shares at $135 for roughly $85.7 billion gross including the overallotment. It was the largest initial public offering ever completed. Shares closed the first day at $161.source →
• 2026-05-15legalProceedingThe NAACP asked the court for a preliminary injunction to halt operation of the unpermitted turbines while the case proceeds.source →
• 2026-04-14legalProceedingThe NAACP and the Mississippi State Conference NAACP, represented by Earthjustice and the Southern Environmental Law Center, sued xAI and its subsidiary MZX Tech in federal district court for the Northern District of Mississippi over 27 methane gas turbines operated without a Clean Air Act permit at the Southaven power plant serving Colossus 2. The site reports potential annual emissions of more than 1,700 tons of nitrogen oxides, 180 tons of fine particulate matter, 500 tons of carbon monoxide and 19 tons of formaldehyde, half a mile from homes and a mile from an elementary school.source →
• 2026-01-16regulatoryActionThe US Environmental Protection Agency revised its New Source Performance Standard and announced that large methane gas turbines require air permits even when operated temporarily — removing the basis on which the Colossus turbines had been treated as exempt.source →
• 2025-07-02regulatoryActionThe Shelby County Health Department approved an air permit for 15 permanent gas turbines at the South Memphis site, stating they would be used strictly as backup and that the temporary turbines were acceptable so long as they were removed within a year. The NAACP and other groups appealed the decision.source →
• 2025-04-01environmentalxAI installed roughly 35 methane gas turbines at the Colossus 1 data center in South Memphis, generating an estimated 422 MW combined, and began operating them under a reading of local rules that treated the trailer-mounted units as portable and therefore exempt from air permits.source →