What is the AI datacenter supply chain?
The AI datacenter supply chain is the 547 companies that turn gigawatts into tokens — spanning 9 systems, 38 subsystems, and 132 segments from electricity generation and grid equipment to AI racks, cooling, and fiber. Curated by Leonardo Boquillón from primary sources.
Of the 547 companies, 77 are rated CRITICAL chokepoints, 216 HIGH, 203 MODERATE, and 51 LOW. Top headquarters geographies: US 295, TW 35, JP 33, CN 31, DE 27. Documented bottlenecks include gas turbine slots (bound by superalloy castings), multi-year large-power-transformer lead times, HVDC cable capacity committed through 2029, and qualified electrical craft labor.
Electricity Generation
Power Plants & Generators
Gas & Steam Turbine OEMs: GE Vernova Inc., Mitsubishi Heavy Industries, Ltd., Siemens Energy AG, Doosan Enerbility (gas turbine scope), Baker Hughes Company. Gas Plant Construction: Argan, Inc., Kiewit Corporation, Black & Veatch, Burns & McDonnell. Merchant Power Producers: Vistra Corp., NRG Energy, Inc.. Generation Portfolio Owners: Cogentrix Energy, LS Power Group. Independent Power Developers: Competitive Power Ventures (CPV), Invenergy LLC. Bridge & Prime Power Fleets (Recip Engines, Aeroderivative & Mobile Turbines): Wartsila (engine power plants scope), Solar Turbines (Caterpillar).
Nuclear Power
Uranium Enrichment & Fuel Supply: Centrus Energy Corp, TENEX (Techsnabexport) / Rosatom, Urenco Ltd (Urenco USA), Cameco Corporation, Orano SA. Heavy Forging & Pressure Vessels: Doosan Enerbility (nuclear forging scope), Japan Steel Works M&E, Inc.. Large Reactor OEMs: Westinghouse Electric Company. Nuclear Construction & Components: BWX Technologies Inc, Bechtel Corporation. Small Modular Reactor Developers: GE Vernova Hitachi Nuclear Energy, Holtec International, Kairos Power LLC, TerraPower LLC, X-energy Inc, Aalo Atomics Inc, NuScale Power Corporation, Oklo Inc, Deep Fission Inc. Reactor Project Hosts: Energy Northwest, Ontario Power Generation. Nuclear Fleet Owners: Constellation Energy Corporation, Talen Energy Corporation.
Renewable Power
Solar Trackers & Mounting: Array Technologies, Nextracker. Photovoltaic Modules: First Solar, JinkoSolar, Trina Solar. Renewable IPPs & PPA Counterparties: TotalEnergies, Clearway Energy, Brookfield Renewable Partners, NextEra Energy Resources (competitive generation scope). Wind Turbines & Offshore Developers: GE Vernova (Wind segment only), Orsted, Vestas Wind Systems. Geothermal Power: Fervo Energy, Ormat Technologies, Sage Geosystems.
Fuel Cells & Hydrogen
Stationary Fuel Cell Manufacturers: Doosan Fuel Cell, FuelCell Energy, Bloom Energy Corporation. Hydrogen & Electrolysis: Ballard Power Systems, Plug Power. Fuel Cell Technology Licensors: Ceres Power Holdings.
Gas Turbine Manufacturing Inputs
Superalloy Melt: ATI Inc., Carpenter Technology Corporation, Precision Castparts Corp. (PCC Structurals). Strategic Alloying Metals: Codelco. Turbine Blade & Hot-Section Castings: Doncasters (DPC Holdings Limited), Howmet Aerospace Inc.. Hot-Section Repair & Coatings: Chromalloy, EthosEnergy, Hanwha Power (formerly PSM).
Natural Gas Fuel Supply & Midstream
Pipelines & Gas Supply: Williams Companies, Energy Transfer, Kinder Morgan, EQT Corporation.
Transmission & Grid
HVDC Systems & Cable
HVDC & Subsea Transmission Cable: NKT A/S, Prysmian S.p.A., LS Cable & System, Nexans S.A., Taihan Electric Wire. HVDC Converter Stations & FACTS: Hitachi Energy (HVDC & FACTS scope), Siemens Energy (Grid Technologies scope), GE Vernova (Grid Solutions scope).
Utilities, Grid Operators & Regulators
Transmission & Wires-Only Owners: American Electric Power, Dominion Energy, National Grid plc, Oncor Electric Delivery (Sempra), Exelon Corporation, ITC Holdings (Fortis). European Transmission System Operators: Amprion GmbH, TenneT Holding B.V., 50Hertz Transmission GmbH, TransnetBW GmbH. Vertically Integrated & Distribution Utilities Serving Datacenter Load: Duke Energy, Entergy Corporation, Southern Company, DTE Energy, PPL Corporation, Xcel Energy, Black Hills Corporation, Evergy, Portland General Electric, PG&E Corporation (Pacific Gas and Electric), FirstEnergy Corp, NextEra Energy, Pinnacle West Capital / Arizona Public Service, Alliant Energy, Ameren Corporation, CMS Energy / Consumers Energy, CenterPoint Energy, El Paso Electric, The AES Corporation, Eversource Energy, Tennessee Valley Authority (TVA). Regional Grid Operators: Electric Reliability Council of Texas (ERCOT), PJM Interconnection LLC, Midcontinent Independent System Operator (MISO), Southwest Power Pool (SPP), California ISO (CAISO), New York ISO (NYISO), ISO New England, Alberta Electric System Operator (AESO). Regulators & Large-Load Tariffs: Federal Energy Regulatory Commission (FERC), Pennsylvania Public Utility Commission, Public Utility Commission of Texas (PUCT), Virginia State Corporation Commission, Public Utilities Commission of Ohio (PUCO). Industry Bodies: Edison Electric Institute (EEI), North American Electric Reliability Corporation (NERC), Electric Power Research Institute (EPRI). Merchant & Independent Transmission Developers: Pattern Energy (SunZia transmission scope), Transmission Developers Inc. (CHPE), Invenergy Transmission (Grain Belt Express).
Overhead Transmission Lines
Advanced Conductors & Reconductoring: CTC Global, TS Conductor. Structures, Insulators & Line Hardware: Valmont Industries, Hubbell Incorporated (Utility Solutions scope).
Substations & Distribution Equipment
Transformers, Switchgear & Core Materials
Transformer Core Materials: Cleveland-Cliffs Inc., JFE Steel Corporation (JFE Holdings), Nippon Steel Corporation, thyssenkrupp Electrical Steel, Baosteel (Baoshan Iron & Steel), Proterial, Ltd. (Metglas), Stalprodukt S.A., voestalpine AG. Asian Transformer Exporters: HD Hyundai Electric, Hyosung Heavy Industries, China XD Electric, LS ELECTRIC, Meidensha Corporation, TBEA Co., Ltd., Toshiba Corporation / Toshiba Energy Systems & Solutions, Baobian Electric, Daihen Corporation, Iljin Electric. Western Transformer Plants: Hitachi, Ltd. (Hitachi Energy / Power Grids BU), Virginia Transformer Corp., Pennsylvania Transformer Technology, LLC, SGB-SMIT Group, WEG S.A.. HV Breakers & GIS: Sieyuan Electric, Pinggao Electric, Hitachi Energy (HV switchgear, GIS & components scope), Mitsubishi Electric Power Products, Inc. (MEPPI). On-Load Tap Changers: Huaming Power Equipment, Reinhausen GmbH (formerly Maschinenfabrik Reinhausen). Bushings & High-Voltage Components: Trench Group GmbH, HSP Hochspannungsgeraete (HSP US), Arteche Lantegi Elkartea, S.A., Hubbell Incorporated (Ohio Brass & substation components scope). Protection, Metering & Grid Software: Schweitzer Engineering Laboratories, Inc. (SEL), Itron, Inc., NARI Technology, GE Vernova (Multilin protection & automation scope). Solid Insulation Materials: Weidmann Electrical Technology AG, DuPont de Nemours (Nomex transformer insulation scope), Krempel GmbH. Transformer Dielectric Fluids: Cargill, Incorporated (FR3 dielectric fluids), Ergon, Inc.. Winding Conductors (Magnet Wire & CTC): Essex Solutions (Superior Essex), De Angeli Prodotti S.r.l..
Campus Medium-Voltage Distribution
Pad-Mount & Distribution Transformers: ERMCO (Electric Research & Manufacturing Cooperative), Prolec GE, Howard Industries, Inc., Hainan Jinpan Smart Technology, Igor Electric, Jeryong Electric, Sanil Electric, Hammond Power Solutions Inc.. Medium-Voltage Switchgear & E-Houses: Siemens AG, Eaton Corporation plc, Powell Industries, Inc., ABB Ltd (MV switchgear scope), Schneider Electric (MV switchgear scope), S&C Electric Company, G&W Electric Co..
Substation EPC, Testing & Commissioning
Substation Engineering & EPC: Burns & McDonnell Engineering Company, Inc.. Testing, Commissioning & Diagnostics: Doble Engineering Company, OMICRON electronics GmbH.
Datacenter Electrical Systems
Backup Generation & Uninterruptible Power
Generator Sets: Cummins Inc., Caterpillar Inc., INNIO Group (Jenbacher), Rehlko (formerly Kohler Energy), Rolls-Royce Power Systems (mtu), Fidelity Manufacturing, Generac Holdings Inc.. Uninterruptible Power Supply: Mitsubishi Electric Corporation, Vertiv Holdings Co, ABB Ltd, Schneider Electric (Secure Power / UPS scope), Eaton Corporation (UPS & white-space power scope). Alternators: Cummins Generator Technologies (STAMFORD | AvK), Nidec Leroy-Somer, Mecc Alte S.p.A.. Transfer Switches (ATS & STS): ASCO Power Technologies (Schneider Electric), Russelectric (Siemens). Stationary UPS Batteries & Battery Cabinets: ZincFive, EnerSys, East Penn Manufacturing (Deka).
On-Site & Co-Located Energy Storage
Battery Cell Suppliers: Fixx Energy, Contemporary Amperex Technology (CATL), LG Energy Solution, Samsung SDI. Long-Duration Storage: Form Energy, ESS Tech, Inc., Eos Energy Enterprises. Storage System Integrators: Canadian Solar e-STORAGE, FlexGen Power Systems, Fluence Energy, LG Energy Solution Vertech, Wartsila Energy Storage, Powin, Saft (TotalEnergies), Tesla, Inc. (Tesla Energy), Sungrow Power Supply.
White-Space Power Distribution
Busway & Busduct: nVent Electric plc, Gaon Cable, Hirose Electric Co., Ltd., LS Eco Energy, Legrand (Starline busway scope). PDUs & Remote Power Panels: Legrand (Raritan & Server Technology rack PDU scope), Vertiv (Geist rack PDU scope), Schneider Electric (APC rack PDU scope). LV Switchgear, Switchboards & Paralleling Gear: Anord Mardix (Flex), E+I Engineering (Vertiv), IEM (Industrial Electric Mfg.). Power Monitoring & EPMS Software: ETAP (Schneider Electric), Eaton Corporation (Brightlayer & Foreseer EPMS scope).
On-Site Prime & Bridge Power
Prime Power Fleets & Microgrids: Solaris Energy Infrastructure, VoltaGrid, ProEnergy, Mainspring Energy, Enchanted Rock.
AI Rack Systems
Rack Power Architecture
Rack Connectors & Internal Busbar: BizLink Holding, Lotes Co., Ltd., TE Connectivity, Luxshare Precision Industry (Luxshare-ICT), Foxconn Interconnect Technology (FIT Hon Teng). Power Shelves, PSUs & HVDC Racks: Delta Electronics, AcBel Polytech, Zhongheng Electric, Chicony Power Technology. Battery Backup Units: AES-KY (Advanced Energy Solution), Lite-On Technology, Dynapack International Technology, Megmeet Electrical, Sunrise Power / 新盛力, Celxpert Energy. Discrete Power Devices (GaN, SiC, IGBT): Fuji Electric Co., Ltd., Infineon Technologies AG, ROHM Co., Ltd., Zhuzhou CRRC Times Electric, Navitas Semiconductor Corporation, Sanken Electric Co., Ltd., Semikron Danfoss GmbH, StarPower Semiconductor, onsemi, STMicroelectronics N.V.. Power Management & Conversion Modules: Monolithic Power Systems, Inc., Richtek Technology (MediaTek subsidiary), Vicor Corporation, Texas Instruments Incorporated, Analog Devices, Inc., Alpha and Omega Semiconductor Limited, Power Integrations, Inc.. Passive Components: Yageo Corporation, Cyntec Co., Ltd., Murata Manufacturing, Samsung Electro-Mechanics.
Server & System OEMs
Branded Server OEMs: Dell Technologies, Fujitsu, Hewlett Packard Enterprise, Lenovo Group, Super Micro Computer, ASUSTeK Computer (ASUS), Cisco Systems (UCS / server scope only), GIGABYTE Technology, IEIT Systems (Inspur Electronic Information), International Business Machines. Contract Manufacturers: Celestica, Jabil, Sanmina Corporation, Flex Ltd.. Cluster Integrators: Penguin Solutions, World Wide Technology. Rack Integration & ODM: Hon Hai Precision Industry (Foxconn), Quanta Computer, Wistron Corporation, Inventec Corporation, Wiwynn Corporation, Pegatron Corporation, MiTAC Computing Technology, Compal Electronics. Chassis, Enclosures & Rails: Champ Tech Optical (晟銘電), King Slide Works, Chenbro Micom. Server-Board PCBs & Copper-Clad Laminates: Elite Material, Taiwan Union Technology (TUC), Gold Circuit Electronics.
Compute Platform Architecture
Accelerator Platform Architects: Advanced Micro Devices, Inc., NVIDIA Corporation (platform architecture scope), Broadcom Inc. (rack platform architecture scope).
Rack & Cluster Interconnect
Scale-Up Copper Interconnect: Amphenol Corporation (rack interconnect scope), Molex. Network Switch Systems: NVIDIA Corporation (networking scope), Arista Networks, Celestica (network switch scope), Accton Technology (Edgecore), Cisco Systems (networking scope). Switch Silicon, NICs & DPUs: Broadcom Inc. (switch silicon & NIC scope), Marvell Technology (switch silicon scope).
Construction, Materials & Labor
Materials, Distribution & EPC
Copper & Conductor Materials: Freeport-McMoRan Inc., Southwire Company, LLC, Prysmian S.p.A. (building wire scope), Wieland Group. Engineering & Construction: Quanta Services, Inc., FRIEDRICH VORWERK GROUP SE, Sterling Infrastructure, Inc., Samsung C&T, MasTec, Inc.. Conduit, Raceway & Coatings: AZZ Inc., Atkore Inc.. Electrical Distribution: WESCO International, Inc., Sonepar, Rexel, Graybar. Datacenter General Contractors & Design-Build: Holder Construction, Turner Construction, DPR Construction, HITT Contracting. Structural Steel, Cement & Concrete: Nucor Corporation, Steel Dynamics, Inc., Cemex, Holcim. Heavy Lift, Rigging & Transformer Logistics: Mammoet, Barnhart Crane & Rigging.
Craft Labor & Workforce
Specialty Trade Contractors: EMCOR Group, Comfort Systems USA, Inc., Rosendin Electric (Rosendin Holdings). Workforce Development Programmes: Google (skilled trades programme), Meta (America's Workforce Academy), Microsoft (Datacenter Academy), OpenAI (NABTU workforce MOU).
Design & Engineering Services
Architecture, Engineering & Commissioning: Corgan, HDR, Jacobs, Syska Hennessy Group.
Thermal Management & Life Safety
Cooling
Dielectric Coolants: 3M (dielectric coolants scope), Syensqo (Galden PFPE), AGC Inc., Shell plc (cooling fluids scope). Liquid Cooling Hardware: Asia Vital Components (AVC), Auras Technology, Boyd Thermal (Eaton), CoolIT Systems (Ecolab). Thermal Interface Materials: Jentech Precision Industrial, Henkel (Bergquist), Shin-Etsu Chemical (thermal silicones scope). Coolant Chemistry & Water Treatment: Ecolab (Nalco Water scope), Kurita Water Industries. Quick Disconnects, Hoses & Manifold Couplings: Stäubli, CPC — Colder Products Company (Dover), Parker Hannifin.
Fire Detection & Suppression
Suppression System Houses & Piping: Johnson Controls International plc, Kidde-Fenwal, Inc. (now KFI Wind-Down Corp) / Pacific Avenue Capital Partners, Carrier Global Corporation, Fike Corporation, Minimax Viking GmbH, Victaulic Company. Clean Agents & Suppressants: 3M (fire suppression scope), The Chemours Company, Standard Fluids Corporation, Sinochem Lantian Co., Ltd., Solstice Advanced Materials Inc.. Detection Systems: Honeywell International Inc., Securiton AG, Robert Bosch GmbH (Bosch Building Technologies), WAGNER Group GmbH, Siemens AG (fire scope), Schneider Electric SE (fire/BMS scope). Codes, Listing & Insurance Gatekeepers: FM Global (Factory Mutual Insurance Company), National Fire Protection Association (NFPA), UL Solutions Inc..
Facility Cooling Plant & Heat Rejection
Chillers & Heat Rejection: Trane Technologies, Johnson Controls International plc (YORK chillers scope), Daikin Applied (Daikin Industries), Baltimore Aircoil Company, Evapco. Air-Side Precision Cooling & Air Handling: Vertiv Holdings Co (thermal management scope), Stulz, Munters Group.
Water Supply & Treatment
Water Treatment, Reuse & Supply: Veolia (Water Technologies scope), Gradiant, Xylem.
Optical Network
Fiber & Glass Manufacturing
Preform, Fiber & Cable Manufacturing: Corning Incorporated, Yangtze Optical Fibre and Cable (YOFC), AFL (America Fujikura Ltd.), Fiberhome Telecommunication Technologies, Fujikura Ltd., Hengtong Optic-Electric, Sumitomo Electric Industries, Ltd., Zhongtian Technology (ZTT), Futong Group, Taihan Fiberoptics. Specialty Fiber: Furukawa Electric Co., Ltd. (Lightera), Lumenisity (Microsoft), Corning Incorporated (hollow-core scope), Heraeus Covantics (hollow-core scope), Relativity Networks. Synthetic Silica & Quartz: Shin-Etsu Quartz Products Co., Ltd., Sibelco (Unimin / Covia), Heraeus Covantics (Heraeus Group), Jiangsu Pacific Quartz, The Quartz Corp. Germanium Supply: Umicore SA, Yunnan Chihong Zinc & Germanium, Yunnan Germanium. Preform Precursor Chemicals: Tosoh Corporation (Tosoh SGM / Tosoh Quartz), Tri Chemical Laboratories Inc..
Underground Construction
Boring, Trenching & Installation Equipment: The Toro Company (Ditch Witch / Charles Machine Works), Herrenknecht AG, Plumettaz SA, Vermeer Corporation. Conduit & Microduct: Infra Pipes, Atkore Inc. (fiber scope), Dura-Line (Orbia), Emtelle, Hexatronic Group. Vaults & Access Chambers: CRH plc (Oldcastle Infrastructure), Hubbell Incorporated. Fiber Construction Contractors: Dycom Industries, Inc., Quanta Services, Inc. (fiber scope), MasTec, Inc. (fiber scope), Michels Corporation.
Routes & Interconnection
Interconnection & Meet-Me Rooms: Equinix, Inc., Digital Realty Trust, Inc., Cologix, Inc., DE-CIX Group AG. Long-Haul & Metro Route Owners: Lumen Technologies, Inc., Zayo Group Holdings, Arelion, Uniti Group Inc. (incl. Windstream), euNetworks Group Limited, AT&T Inc., Cogent Communications Holdings, Inc., Verizon Communications Inc..
Subsea Cable Systems
Turnkey Subsea System Integrators: Alcatel Submarine Networks (ASN), NEC Corporation, SubCom, LLC, HMN Technologies (Hengtong Huahai), Prysmian S.p.A. (subsea telecom scope). Submarine Cable Manufacturing: OCC Corporation. Cable-Laying Vessels & Installation: KDDI Cable Ship Co., Ltd., LS Marine Solution, Global Marine Group, Orange Marine.
Structured Cabling Inside the Datacenter
Structured Cabling & Connectivity: Fiberon Technologies (光聖), Amphenol Corporation, Legrand SA, Panduit Corp., nVent Electric plc (fiber scope), Belden Inc., Leviton Manufacturing Co., Inc., Nexans S.A. (structured cabling scope). Optical Circuit Switching: Coherent Corp. (OCS scope), Lumentum Holdings (OCS scope), HUBER+SUHNER (Polatis OCS scope). Fiber Connectors & Ferrules: US Conec Ltd., SENKO Advanced Components.
Test, Splicing & Tooling
Fusion Splicers: Fujikura Ltd. (splicer scope), Sumitomo Electric Industries (splicer scope), Furukawa Electric Co., Ltd. (splicer scope). Optical Test & Measurement: Anritsu Corporation, EXFO Inc., Keysight Technologies, Inc., Viavi Solutions Inc..
Optical Transport & Line Systems
Coherent DWDM & Open Line Systems: Ciena Corporation, Nokia (Infinera optical scope), Cisco Systems (optical systems scope).
Demand & Offtake
Datacenter Operators & Developers
Hyperscaler Self-Builders: Alphabet Inc. (Google), Amazon.com, Inc. (AWS), Meta Platforms, Inc., Microsoft Corporation, Oracle Corporation. Private Datacenter Developers: Aligned Data Centers, Crusoe Energy Systems, CyrusOne, QTS Realty Trust, STACK Infrastructure, Switch, Inc., Vantage Data Centers, CloudHQ. Capital & Asset Managers: Blackstone Inc. (datacenter scope), DigitalBridge Group, Inc., Brookfield Asset Management (datacenter scope), KKR & Co. Inc. (datacenter scope), Blue Owl Capital Inc. (datacenter scope), Stonepeak (datacenter scope), Macquarie Asset Management (datacenter scope). Listed Datacenter REITs: American Tower Corporation (CoreSite), Iron Mountain Incorporated, Digital Realty Trust, Inc. (wholesale leasing scope), Equinix, Inc. (xScale scope), GDS Holdings Limited. International Wholesale Operators (APAC/EMEA): NTT Global Data Centers, AirTrunk.
Neoclouds & AI Cloud Operators
Neoclouds & AI Cloud Operators: CoreWeave, Inc., IREN Limited, Applied Digital Corporation, Cipher Mining Inc. (Cipher Digital), Core Scientific, Inc., Galaxy Digital Inc., Hut 8 Corp., Nebius Group N.V., TeraWulf Inc., Bitdeer Technologies Group, CleanSpark, Inc., New Era Energy & Digital, Inc., TensorWave, Nscale Global Holdings, Fluidstack, Lambda.
Sovereign & National AI Infrastructure
Sovereign AI Campus Operators: G42 (Khazna Data Centers), HUMAIN. Sovereign AI Investment Vehicles: MGX.
Land, Entitlement & Powered Sites
Powered-Land Developers & Land Banking: Tract. Site Selection & Capital Markets Advisory: CBRE Group, Inc. (datacenter scope), JLL (Jones Lang LaSalle) (datacenter scope).