Energy Startups

Allume Energy makes SolShare, hardware that lets a single rooftop solar system be shared across all apartments and common areas in a multi-unit building, distributing the energy fairly among residents. It serves apartment buildings, units and townhouses in Australia, offering feasibility assessments, installer connections and funding support alongside the technology.

3 investors

Allumia helps utilities design and manage energy efficiency programs from launch through measured results, and helps small and medium-sized businesses cut energy use through lighting, HVAC, and refrigeration upgrades. It also supports organizations in funding and running efficiency initiatives to meet sustainability and clean energy goals.

3 investors

Altaeros designs and manufactures autonomous tethered aerostat systems, controlled by its Aerostat Autopilot software, for commercial and government applications including telecommunications, border security, and defense surveillance. Spun out of MIT in 2010, the company deploys aerostats in the US and internationally, offering products such as the SuperTower aerial cell tower and the ST-400 multi-mission aerostat.

3 investors

Alternō develops thermal energy storage systems available both as plug-and-play solutions for quick deployment and custom-engineered systems for large-scale projects. The company serves organizations seeking scalable and sustainable energy solutions.

3 investors

Ambient Fuels develops and finances green hydrogen projects across the US and internationally, handling site feasibility through production of hydrogen derivatives such as eFuels and ammonia. It serves industrial customers seeking to buy hydrogen gas or fully financed hydrogen projects for heavy industry use cases.

3 investors

AMMP offers a platform for commercial and industrial (C&I) solar operators that combines technical monitoring, commercial tracking, and stakeholder reporting for distributed solar and battery portfolios. It provides real-time site dashboards and performance analytics to help developers monitor and optimize clean energy assets.

3 investors

Amperecloud develops a cloud-based operating system for managing renewable energy installations including solar, wind, biogas, hydropower, and battery storage systems. The platform serves energy operators globally with monitoring, maintenance, and commercial management capabilities to maximize asset efficiency and returns.

3 investors

Amplified Industries builds wireless sensors and an AI-driven platform for monitoring and optimizing oilfield assets, offering well data capture, pump diagnostics (DynaCard/PumpCard), remote pump-off control, and spill and leak prevention. It serves oil and gas producers and field operators seeking to increase production, cut operating costs, and prevent equipment failures and environmental events.

3 investors

Angaza offers inventory management features as part of its platform for last-mile distributors of products such as clean cookstoves and off-grid energy devices. Its tools help distribution businesses track and manage stock to reach underserved consumers.

3 investors

Anzen develops thermoelectric heating, cooling, and ventilation technology for residential buildings to reduce carbon emissions cost-effectively. The company targets decarbonisation of hard-to-heat properties through novel technology and simplified installation processes.

3 investors

Aqua-Cell develops batteries for energy storage used to defer costly electricity substation upgrades, enable peak-load-shifting for factories and industrial facilities, and provide renewable self-sufficiency for microgrids and remote communities. It serves grid providers, industrial electricity users, and off-grid/island communities.

3 investors

Areg.AI offers an AI- and robotics-driven platform for autonomous monitoring, inspection, and maintenance of solar assets, aimed at solar operations and asset management teams. Its modules cover dashboards, digital twin modeling, drone thermal inspection, forecasting, and financial planning to shift solar O&M from reactive to autonomous.

3 investors

Arinna develops solar power technology for sustainable applications on Earth and in space. Founded by Stanford PhDs with a focus on using sunlight as an energy source.

3 investors

Aston Labs operates an integrated power capacity service combining on-site thermal generation, transmission infrastructure, renewable and gas generation, energy storage, and real-time controls software to deliver reliable electricity to large industrial customers without utility interconnection delays.

3 investors

Astral Systems develops fusion technology to produce medical isotopes and power decentralised energy solutions for healthcare providers and researchers.

3 investors

Atomic Canyon builds AI-powered software for the nuclear energy industry, supporting teams with document review, compliance, and operational analysis. It works with utilities, operators, and regulators, primarily in the United States.

3 investors

Atomic Insights is a publication and podcast (The Atomic Show) covering nuclear energy technology, reactor development, and nuclear investment topics. It is authored by Rod Adams and includes commentary on advanced nuclear ventures and decarbonization.

3 investors

Aurelia manufactures efficient turbines for power generation that operate on multiple fuel types including hydrogen and biogas, with a compact design requiring fewer moving parts and lower maintenance compared to conventional turbines.

3 investors

Autoridad Panandina is an energy infrastructure company that develops projects to supply power for large-scale compute deployments in regions with abundant energy resources.

3 investors

Ayr Energy designs, manufactures, and tests custom power transformers for medium and high voltage applications, serving utilities and electrical infrastructure customers. It provides end-to-end delivery, field installation, commissioning, and after-sales support through service hubs across the continental United States.

3 investors

BattGenie develops software for battery management systems, using physics-based battery models to optimize charging, state-of-charge and state-of-health estimation for lithium-ion and next-generation batteries. It works with hardware vendors, OEMs, and battery manufacturers to improve energy storage efficiency and safety.

3 investors

BatX operates physical lithium-ion battery recycling infrastructure — collection, mechanical preprocessing, black mass production, and hydrometallurgical refining — to recover battery-grade materials such as lithium carbonate, cobalt sulphate, nickel sulphate, and manganese carbonate. It supplies these recovered materials to cathode manufacturers, cell makers, and industrial buyers, and provides OEMs and fleet operators a compliant destination for end-of-life batteries, focused on the Indian market.

3 investors

Bayou Energy provides APIs for companies to deploy and manage clean energy devices. The company serves businesses seeking to achieve clean energy independence.

3 investors

Beebop provides orchestration infrastructure that enables distributed energy resources to interact dynamically with power grids while meeting operational, market, and regulatory constraints. The platform is designed for grid operators and utilities managing the integration of renewable generation and electrification at scale.

3 investors