19 of the 100 companies on the AI Infra 100 are in the Power, cooling & thermal category (19% of the list), in 4 segments and from 9 countries. The highest ranked is Delta Electronics, rank 8 of 100 with a score of 100. Ranking and scores from the November 2026 edition, the assessment by Frontier Tech Intelligence of the AI infrastructure landscape.
| Rank | Company | Category / segment | Country | Score |
|---|---|---|---|---|
| 8 | Delta ElectronicsDelta supplies power and cooling for AI data centers, including server power supplies, 800 VDC in-row power racks, battery backup and liquid-cooling systems. | Power, cooling & thermal / Rack & server power delivery | Taiwan | 100 |
| 12 | Hitachi EnergyHitachi Energy supplies transformers and other grid and power equipment, and develops power infrastructure for AI data centers, including on-site energy parks and 800 V DC systems. | Power, cooling & thermal / Grid & power equipment | Switzerland | 98 |
| 16 | GE VernovaGE Vernova manufactures gas turbines and power-generation infrastructure, and works with NVIDIA and partners to supply power for AI data centers. | Power, cooling & thermal / Generation for data centers | United States | 96 |
| 18 | Siemens EnergySiemens Energy supplies power-generation, transmission and grid equipment, and partners on modular data centers with integrated on-site generation. | Power, cooling & thermal / Grid & power equipment | Germany | 96 |
| 20 | VertivVertiv supplies data-center cooling, including liquid cooling, chillers and cooling distribution units, for high-density AI and HPC data centers. | Power, cooling & thermal / Cooling & thermal | United States | 96 |
| 25 | FlexFlex develops server-board power distribution for native 800-V systems, 800-V DC sidecars, and high-efficiency power shelves for AI data centers. | Power, cooling & thermal / Rack & server power delivery | Singapore | 96 |
| 53 | Schneider ElectricSchneider Electric sells 800 VDC data center cooling architecture for AI workloads to data center operators and infrastructure customers. | Power, cooling & thermal / Cooling & thermal | France | 90 |
| 54 | Bloom EnergyBloom Energy designs and deploys fuel-cell power systems and microgrids for onsite power at AI data centers, with customers including Oracle and CoreWeave. | Power, cooling & thermal / Generation for data centers | United States | 90 |
| 58 | Maschinenfabrik ReinhausenMaschinenfabrik Reinhausen supplies transformer equipment, including tap changers and bushings, for high-voltage grid and power systems. | Power, cooling & thermal / Grid & power equipment | Germany | 89 |
| 61 | Trane TechnologiesTrane Technologies supplies HVAC and thermal-management systems for data centers, with liquid-cooling capability added through the Stellar Energy and LiquidStack acquisitions. | Power, cooling & thermal / Cooling & thermal | Ireland | 89 |
| 62 | Alfa LavalAlfa Laval sells FreeWaterLoop cooling systems and brazed plate heat exchangers to data center operators and cooling-system manufacturers serving AI infrastructure. | Power, cooling & thermal / Cooling & thermal | Sweden | 89 |
| 63 | LegrandLegrand supplies power infrastructure for high-density data centers, including busways, power shelves and rack power systems. | Power, cooling & thermal / Rack & server power delivery | France | 89 |
| 66 | Johnson ControlsJohnson Controls supplies YORK chillers, absorption chillers, cooling distribution units and high-temperature heat pumps, including products designed for high-density AI data centers and industrial electrification. | Power, cooling & thermal / Cooling & thermal | Ireland | 88 |
| 67 | ABBThrough Sevensense, ABB provides visual AI navigation for robotic systems, representing specialized AI models applied to industrial mobility and automation. | Power, cooling & thermal / Grid & power equipment | Switzerland | 88 |
| 68 | LG ElectronicsLG Electronics supplies data-center cooling, including coolant distribution units, liquid-immersion cooling and predictive cooling controls, for hyperscale and other data centers. | Power, cooling & thermal / Cooling & thermal | South Korea | 88 |
| 72 | EatonEaton supplies data-center power equipment, including UPS systems, busbars and an 800 VDC AI data-center design, plus thermal management through Boyd Thermal. | Power, cooling & thermal / Rack & server power delivery | Ireland | 87 |
| 76 | CorintisCorintis makes microfluidic cold plates and chip-specific cooling systems for AI data-center chips, plus custom cooling design services. | Power, cooling & thermal / Cooling & thermal | Switzerland | 87 |
| 82 | Analog DevicesAnalog Devices supplies power-management components for data-center servers and racks, including µModule regulators with PMBus telemetry for real-time power control. | Power, cooling & thermal / Rack & server power delivery | United States | 86 |
| 83 | CarrierCarrier supplies data-center thermal infrastructure, including QuantumLeap and interoperable single- and two-phase direct-to-chip liquid cooling integrated with traditional HVAC through intelligent controls. | Power, cooling & thermal / Cooling & thermal | United States | 86 |
Score out of 100: traction (deployment, production, commercials, progress) and capability (technology, positioning, firepower, leverage). The full AI Infra 100 with filters →
Delta Electronics ranks highest (rank 8 of 100, score 100). The Power, cooling & thermal category holds 19 of the 100 companies on the AI Infra 100: Delta Electronics, Hitachi Energy, GE Vernova, Siemens Energy and Vertiv and 14 more. Ranking from the AI Infra 100, November 2026 edition, by Frontier Tech Intelligence.
Delta Electronics, Hitachi Energy, GE Vernova, Siemens Energy and Vertiv and 14 more. Ranking from the AI Infra 100, November 2026 edition, by Frontier Tech Intelligence.
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