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The bottleneck is power, not chips

39Scored
60Tracked
11Sectors

Why we cover this

Most people still think the constraint on AI is silicon. It moved. Grid interconnection queues in Northern Virginia, Phoenix and Dallas now run four to seven years. High-power transformer lead times went from 24–30 months before 2020 to as long as five years, choked on grain-oriented electrical steel with roughly 60% of production capacity in China. Gas turbine order books run into 2029–2030.

The consequence is concrete: hyperscalers plan more than $750B of data centre capex in 2026, and an estimated 30–50% of sites face delay or cancellation on power delivery and switchgear backlogs — not on chip supply. Meanwhile critical minerals acquired a policy-backed buyer, with close to $2.9B of US federal commitments in June 2026 alone.

Value migrates down the stack as the layer above commoditises. That is why we concentrate coverage on electrons, materials and the equipment in between rather than on models and applications.

See this for your sectors — 10 seconds, no account

The book, scored

39 companies, ranked. Scores run 0–100 across market, team, product, moat and traction — our own view, not a consensus.

84
A-
MaterialsSeries C

Mitra Chem

AI-native materials manufacturing platform producing LFP cathodes and critical battery materials outside China.

Battery MaterialsLFP CathodeCritical MineralsAI Manufacturing
Mountain View, CAFounded 2021Alpha Wave Global · GM Ventures
80
A-
Energy & ClimateSAFE

Aalo Atomics

Mass-manufactured sodium-cooled nuclear pods purpose-built to power AI data centers.

NuclearAI powerModular reactorsEnergy infrastructure
Austin, TXFounded 2023
80
B+
Nuclear EnergySeries A

Exodys

Modular UPCYCLE facilities converting spent nuclear fuel into domestic fissile feedstock.

Nuclear RecyclingSpent FuelUraniumProliferation-Resistant
New York, NYFounded 2022
80
B+
EnergySeed

GeoKiln

Manufactures hydrogen underground inside iron-rich rock via thermal serpentinization at $1.50/kg.

HydrogenGeothermalSerpentinizationClean Energy
Minnesota, USAFounded 2022
80
B+
EnergySeed

MAYA

Vertically integrated domestic manufacturer cutting transformer lead times from 2 years to 8 weeks.

Grid InfrastructureTransformersVertical IntegrationEnergy Manufacturing
USAFounded 2023
80
B+
Nuclear EnergySeries D

Radiant Nuclear

Kaleidos — a portable microreactor in a shipping container, built for mass production rather than site construction.

MicroreactorPortable NuclearHTGRSpaceX Alumni
El Segundo, CAFounded 2019DCVC
79
B+
MaterialsSeed

Fast Metals

Recovers iron, aluminum, scandium, titanium, and REEs from toxic red mud mine tailings.

Rare Earth ElementsCritical MineralsTailingsCircular Economy
Houston, TXFounded 2021
79
B+
Energy / FusionSeries B

Proxima Fusion

Europe's best-funded fusion company — quasi-isodynamic stellarators built on Max Planck's Wendelstein 7-X lineage.

FusionStellaratorHTS MagnetsMax Planck Spinout
Munich, GermanyFounded 2023XTX Ventures · East X Ventures
79
B+
Nuclear EnergyPre-Seed

Raven-Flint

Zero-F2 uranium conversion process producing UF6 without hazardous elemental fluorine.

UraniumNuclear FuelUF6 ConversionFluorine-Free
Idaho Falls, IDFounded 2025
79
B+
Energy / HVACSeries A

Transaera

Metal-organic-framework dehumidification that decouples moisture removal from cooling — 2x-efficiency rooftop HVAC in a conventional footprint.

HVACMetal-Organic FrameworksDehumidificationBuilding Electrification
Somerville, MAFounded 2018Energy Impact Partners
78
B+
MaterialsSeed

GreenLIB

Refinement-as-a-Service pre-treating EV battery black mass with 95%+ recovery efficiency.

Battery RecyclingBlack MassCircular EconomyLithium
Ohio, USAFounded 2022
78
B+
EnergySeries F

Helion Energy

Fusion energy — Microsoft contracted to buy the first electricity output.

EnergyFusionClean EnergyHardtech
Everett, WAFounded 2013Sam Altman (personal) · OpenAI Ventures
78
B+
EnergySeed

Kepler Labs

Facility-level physical climate risk modeling translating hazard data into quantifiable financial metrics.

Climate RiskPhysical RiskESG AnalyticsInstitutional Investing
San Francisco, CAFounded 2022
78
B+
EnergySeed

Merge4 Energy

AI-embedded solid-state circuit breakers responding 10,000x faster than mechanical alternatives.

Solid-StatePower DistributionCircuit BreakersAI
Boston, MAFounded 2022
78
B+
Nuclear EnergySeed

MuWave

UKAEA spinout building next-generation gyrotrons for fusion energy and industrial microwave markets.

GyrotronsMicrowaveFusion EnergyUKAEA Spinout
Culham, UKFounded 2023
78
B+
Energy / HVACSeries B

Quilt

Smart ductless heat pump system delivering room-by-room zero-carbon climate control.

Heat PumpsHVACSmart HomeClean Energy
CaliforniaFounded 2021
78
B+
EnergySeed

YPlasma

Solid-state DBD plasma actuators replacing mechanical fans with silent ionic wind cooling.

PlasmaThermal ManagementCoolingData Centers
Newark, NJFounded 2022
77
B+
EnergyPre-Seed

Alektra

Purpose-built AI for electricity grid dispatch, markets, and predictive infrastructure management.

Grid AIElectricity MarketsDispatch OptimizationUtilities
USAFounded 2023
77
B+
EnergySeed

Gemini Energy

Modular 100kW on-site fuel cells delivering five-nines reliable power for AI data centers.

Fuel CellsData CentersPower GenerationModular
USAFounded 2022
77
B+
InfrastructureSeed

Safety Bolt

Wireless retrofit bolt sensor providing 20 years of structural health monitoring data.

Structural MonitoringIoTWind EnergyInfrastructure
Stockholm, SwedenFounded 2021
77
B+
MaterialsSeed

Skouria

Extracts copper from deep porphyry brines via geothermal-inspired in-situ recovery.

CopperCritical MineralsGeothermalIn-Situ Recovery
USAFounded 2022
77
B+
MaterialsPre-Seed

SparkMate

Fully autonomous electric steel mills electrifying iron ore with alkaline electrolysis.

Green SteelElectrolysisDecarbonizationIron Ore
Hong KongFounded 2025
76
B+
EnergySeries C

Commonwealth Fusion Systems

Compact fusion energy using breakthrough high-temperature superconducting magnets.

EnergyFusionSuperconductingMIT
Devens, MAFounded 2018Khosla Ventures · Breakthrough Energy Ventures
76
B+
Energy StorageSeries A

Inlyte Energy

Iron-sodium batteries for grid-scale storage — domestic supply chain, 20-year life, Li-ion drop-in.

Battery StorageIron SodiumGrid StorageLong Duration
San Francisco Bay Area, CAFounded 2021
75
B
MaterialsSeed

Heisler Semiconductor

Advanced semiconductor packaging, 3D integration, and laser micromachining for R&D to mid-volume.

Semiconductor PackagingHeterogeneous Integration3D ICLaser Micromachining
Halethorpe, MDFounded 2019
75
B
Energy / FusionSeries A (milestone-gated)

Pacific Fusion

Pulsed magnetic inertial fusion funded on staged milestones — roughly $900M committed against demonstrated physics.

FusionPulsed PowerInertial ConfinementMilestone-gated Funding
Fremont, CAFounded 2023General Catalyst
75
B
InfrastructurePre-Seed

Path Power

Transmits electricity wirelessly through the Earth itself, bypassing copper and above-ground infrastructure.

Wireless PowerUndergroundInfrastructureCopper Reduction
Cookeville, TNFounded 2021
75
B+
Materials / Critical MineralsSeries A

Rock Zero

Proprietary low-temperature hardrock lithium refining — battery-grade chemicals at lower cost and footprint.

Lithium RefiningCritical MineralsBattery MaterialsHardrock Mining
Cambridge, MAFounded 2024
75
B+
MaterialsSeries B

Solarcore

Polymer aerogel thermal insulation — NASA-derived materials science commercialised across US Army shelters, consumer footwear and industrial packaging.

Advanced MaterialsAerogelThermal InsulationDual-Use
Portland, ORFounded 2015Airbus Ventures
74
B
Energy StorageSeries C

Energy Dome

CO2 Battery — long-duration storage built from off-the-shelf industrial components, no lithium and no degradation.

Long-Duration StorageCO2 BatteryGrid StorageItaly
Milan, ItalyFounded 2019
74
B
EnergyPre-Seed

Luxergy

Modular heat engines running on any heat source, far cheaper than conventional power plants.

Heat EnginesModular PowerGeothermalWaste Heat
USAFounded 2024
74
B
MaterialsPre-Seed

Nobel Deepsea

Sustainable subsea extraction technology targeting deep-sea polymetallic mineral deposits.

Deep Sea MiningCritical MineralsSubseaSustainability
ScandinaviaFounded 2023
74
B
Energy / FusionSeries B

Realta Fusion

Compact modular fusion reactors for industrial heat and power — CoSMo fusion technology.

Fusion EnergyMagnetic MirrorIndustrial DecarbonizationDeep Tech
Madison, WIFounded 2022
72
B+
CleanTechSeries A or B (estimated, founded 2021)

Planet A Energy

AI-powered grid optimization software for the distributed energy transition.

ClimateEnergyAIGrid
Munich, GermanyFounded 2021
72
B
Nuclear EnergyPre-Seed

Uranium Boilers

Compact nuclear fission boiler systems for distributed baseload energy.

Nuclear FissionModular ReactorDistributed EnergyBaseload
San Jose, CAFounded 2023
67
C+
AI / Advanced MaterialsSeries A

Heph Technologies

AI-accelerated plasma physics solver and superconductor discovery platform — 10,000x computational speedup.

Plasma PhysicsAI MaterialsSuperconductorsNeural Networks
New York, NYFounded 2022
67
C+
Energy / FusionSeries C

Tokamak Energy

Spherical tokamaks and high-temperature superconducting magnets — with a magnet business that generates revenue before fusion does.

FusionSpherical TokamakHTS MagnetsUKAEA Spinout
Oxford, UKFounded 2009
65
B-
Energy & ClimateSeed / Series A

Panthalassa

Ocean energy and at-sea compute infrastructure for power-constrained AI workloads.

Ocean energyAI infrastructureClimateDeep tech
60
C
Nuclear EnergySeries A / Pre-Series B

Copenhagen Atomics

Mass-producible thorium molten salt reactors in shipping containers — two years of continuous molten salt pump operation proven.

Molten Salt ReactorThoriumMass ProductionDenmark
Copenhagen, DenmarkFounded 2014

Cross-sector by construction — this set spans 11 of our sector labels because the bottleneck does not respect them. A company appears here only if it carries analyst enrichment and a score; the raw sourcing tail is excluded.

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Research only. Nothing here is an offer or solicitation to buy any security. No deal terms, valuations, round sizes or allocations appear on this page, and inclusion does not mean a company is raising or that Alphaneo can offer access to it. Scores are Alphaneo’s own assessment as of Aug 14, 2026, are not investment advice, and are not independently verified. Named investors are drawn from public announcements. Private investments are illiquid and may lose their entire value.