xAI
AI company founded by Elon Musk; operates the Colossus supercluster in Memphis.
Owned / funded by
Capital and control flowing in
- MGX· invests in
MGX participant in xAI Series C (Dec 2024 $6B round) and Series E (Jan 2026 $20B round).
- Qatar Investment Authority· invests in
QIA participant in xAI Series C and Series E.
Saudi PIF's HUMAIN invested $3B in xAI (2025).
- NVIDIA Corporation· invests in
NVIDIA participant in xAI Series C and Series E.
Jointly developing a network of GPU data centers in Saudi Arabia anchored by a 500MW+ flagship; HUMAIN invested $3B in xAI Series E.
- MZX Tech· subsidiary of
MZX Tech LLC is an xAI subsidiary used to develop power-generation and data-center infrastructure in Mississippi
Data centers
4 projects in the dataset
- xAI Colossus· operatesMemphis, Shelby, TNOperational300 MW
- xAI Colossus 2 (Southaven)· operatesSouthaven, DeSoto, MSOperational500 MW
- xAI Colossus 1 (Memphis)· operatesMemphis, Shelby, TNOperational498 MW
- xAI Southaven (MACROHARDRR)· operatesSouthaven, DeSoto, MSAnnounced2000 MW
Supplied / contracted / lobbied by
Inbound services and contracts
- NVIDIA Corporation· supplies
xAI Colossus uses ~200K NVIDIA H100/H200 GPUs.
- Tennessee Valley Authority· supplies
TVA supplies grid power to xAI Colossus.
- Shelby County Health Department· contracted by
Shelby County Health Department issued xAI's air permit authorizing 15 permanent natural gas turbines for backup power at the Colossus Memphis data center.
MLGW supplies electricity (sourced from TVA) to xAI's Colossus data center in Memphis; planning a 50MW infrastructure upgrade and accepting transfer of a 150MW xAI-funded substation.
- AI Infrastructure Partnership (AIP)· partners with
Joined AIP in March 2025 alongside NVIDIA.