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Energy 48 startups

"Energy" Startups

Every active startup we index tagged "Energy", sorted by score and momentum.

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Last updated

2026-09-02

Hiring right now 6% 3 of 48

Open roles 48

Most-hired discipline Engineering

48 tech startups tagged "Energy" are currently indexed on techstartupslist.com. This page lists every active match, with logos, taglines, and direct links to each company's site — no paywalled middleman. Notable "Energy" startups in the index include Gecko Robotics, Airthium, Astro, Atmeto, and Atomarine. Each profile surfaces team size, founding year, category, and any open roles their careers page is publicly scrapable for. These companies concentrate in Climate, AI / ML, and Hardware — the categories where this tag shows up most often in our scrape. Geographically, "Energy" lean toward San Francisco, New York City, and Paris, with the rest spread across remote-first teams and other hubs. Y Combinator batches represented here: S26, W21, S23, and W25, among others. 6% of these companies are hiring right now (3 of 48) — a live signal from the jobs we scrape, not a static directory claim; 1 is currently flagged as trending on hiring momentum; the listing refreshes whenever the scrape runs so tag membership stays current as companies re-tag and new ones appear.

AI + Robotics for the Built World

Artificial IntelligenceRoboticsEnergy

Decarbonized heat and power cheaper than fossil fuels

Energy StorageHard TechHardware

The world’s first AI energy developer

Solar PowerEnergyRenewable Energy

We develop ML that optimizes how batteries in the grid store energy

Energy StorageReinforcement LearningClimate

Floating nuclear powered data centers at sea.

Hard TechEnergy

Providing clean, safe, virus free air for homes, buildings and cars

First electric business aircraft designed for hydrogen propulsion

Hydrogen EnergyAirplanesEnergy

The operating system for commercial buildings.

SustainabilityProptechEnergy

Electric fleets park and charge anywhere with Curo

TransportationEnergyAutomotive

AI-native remote operations center for hardware fleets

Artificial IntelligenceHardwareRobotics

Automating Compliance for Construction

FintechB2BCompliance

AI That Operates Energy Infrastructure

Deep LearningB2BEnergy

A single point integration for secure and automated EV charging.

Artificial IntelligenceAPIEnergy

Software that increases the value of oil & gas wells

AnalyticsEnergyBig Data

Energy Orchestration Platform

ClimateAPIEnergy

Ethos Space Resources

We make Silicon on the Moon.

Hard TechExascale ComputingEnergy

Smart electric & water meters as a service

Nuclear-inspired cooling that turns wasted power into more AI compute

HardwareClimateEnergy

SaaS that helps renewables & energy storage operate more profitably

ClimateEnergyClimateTech

Protecting the grid today, preparing the grid for tomorrow

HardwareClimateEnergy

Building the world's first fusion power plant

Fusion EnergyHard TechClimate

Small unmanned hydrogen airships for long range monitoring

Hydrogen EnergyB2BClimate

Robotic crews for large-scale infrastructure construction

Hard TechRoboticsConstruction

Simulating Agents Running Industrial Companies

Artificial IntelligenceB2BEnergy

AI-Native Engineering Firm designing Data Centers

Artificial IntelligenceDesignEnergy

Maritime Fusion

Fusion reactors for ships

Fusion EnergyHard TechEnergy

Engineering the future of chemistry for natural resource extraction

Data management platform for oil & gas assets

AnalyticsEnergy

Software to find the best sites for renewables on the electrical grid

Solar PowerClimateEnergy

Tracking methane emissions with satellites

Artificial IntelligenceSatellitesAnalytics

Agentic AI for Power Projects and AI Infrastructure

ProptechClimateEnergy

Renewable infrastructure deployment at scale.

Artificial IntelligenceSolar PowerB2B

Efficient and compact power supply for AI hardware

Hard TechHardwareEnergy

AI powered sensors that save energy, water and emissions

Machine LearningIoTClimate

Long range, wireless energy distribution that scales

Rewbi uses AI to increase grid-connected battery storage revenue 2x

Energy StorageB2BEnergy

Salem Robotics Inc

Deploying robots for inspections in hazardous spaces, like nuclear.

Hard TechRoboticsEnergy

Modernizing commercial insurance

ConstructionInsuranceEnergy

The agentic origination desk for supply chain risk.

FintechSupply ChainAgriculture

Foundation models to simulate Earth, starting with weather.

Artificial IntelligenceClimateInsurance

Instant 3D Digital Twins for Smarter Real Estate.

Artificial IntelligenceComputer VisionReal Estate

AI-powered workflows for energy infrastructure

Energy StorageSolar PowerClimate

Predictive maintenance for power infrastructure.

Deep LearningIoTEnergy

AI Platform for Efficient and Sustainable Operations

ConstructionLogisticsEnergy

Legora for physical engineering firms

ConstructionEnergyEnterprise Software

A carbon MRV solution for energy and hard-to-abate sectors

IoTClimateEnergy

Energy independent data centers with solar and repurposed batteries.

Artificial IntelligenceHardwareSolar Power

Making car ownership and management frictionless.

Autonomous DeliveryMobilityEnergy

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Stralis Aircraft

Emission free hydrogen electric aircraft

Hard TechHydrogen EnergyAirplanes

Sunrun for the developing world

FintechSolar PowerClimate

Discovering new pesticides with AI

The Operating System of the construction industry

SaaSConstruction

YC S26 startupsAll cohort members Startups in San Francisco2567 indexed Climate startupsFull category listing

"Energy" startups in San Francisco17 startups

Frequently asked questions

How many "Energy" startups are indexed?

Our index currently tracks 48 active tech startups tagged "Energy". New entries appear automatically as scrapers discover them; shutdowns are flagged inactive and drop off this listing.

What are the top "Energy" startups?

Among the "Energy" startups indexed here: Gecko Robotics, Airthium, and Astro, plus 45 more on this page. Sorting prioritizes curated score, sponsored placements, and trending signals.

Are "Energy" startups hiring right now?

3 of the 48 companies on this page currently have open roles in our jobs index. Open roles link straight to each company's own careers page.

How often is the "Energy" startup list updated?

Automated scrapers refresh this page on the same daily cadence as the rest of the directory. The last index update was 2026-09-02.