Energy Startups
4,798 companies tagged Energy, with their investors and founders.
Rivy provides financing infrastructure and credit tools to make clean energy affordable and accessible, serving business owners, homeowners, micro-grid contractors, and solar vendors/installers. It operates in the solar energy financing sector with a focus on Nigeria.
4 investors
Satim provides AI-powered detection, classification, and identification of vessels, vehicles, and aircraft from synthetic aperture radar (SAR) data collected by satellites and unmanned aerial vehicles. The platform processes raw SAR sensor data into operator-ready intelligence for defense and intelligence applications.
4 investors
Satoshi Energy provides a platform and advisory services for large-load energy development, marketing construction-ready power sites to data center companies and helping generation, data center, and financing parties handle site selection, interconnection, contracts, and settlements. It serves the energy and data center compute market.
4 investors
SensorSuite partners building system specialists and utility executives to modernize building systems in support of energy grid transition. The company serves utilities and buildings sectors through smart building and grid optimization technology.
4 investors
Sention provides battery analytics using ultrasound imaging, data fusion, and AI to give visibility into battery internals for researchers, manufacturers, and operators. Its tools detect anomalies, grade cells, forecast degradation, and track state-of-charge across the battery lifecycle for applications such as EV and BESS.
4 investors
Shoreline offers a software platform for planning, building, and operating offshore and onshore wind farms, providing operational visibility, resource and work planning, and repair scheduling. It serves wind farm developers, operators, OEMs, EPC contractors, and service providers.
4 investors
SIGA provides OT (operational technology) cybersecurity that monitors raw electrical signals at Level 0 to detect malicious manipulation of PLC logic, sensor values, and false data injections in industrial processes. Its SigaML2 suite supports incident response for critical infrastructure operators such as power grids, water treatment, oil and gas, and building systems through process-level threat detection and decision support.
4 investors
Itron provides technology and solutions for utilities and cities to manage energy and water, including grid planning, communication networks, distributed energy resource management (DERMS), and advanced metering infrastructure (AMI). It serves utility and municipal customers in over 100 countries with connected endpoint devices and data analytics for grid operations.
4 investors
SIRC develops IoT sensor devices and cloud platform solutions for energy monitoring and digital transformation. The company's core SIRC device enables contactless measurement of electrical current, power, angle, and frequency across industrial equipment and infrastructure.
4 investors
Sistema.bio manufactures prefabricated, modular tubular biodigesters that convert animal dung into biogas for small and medium-sized farms. Its product range serves operations from 2 to 200+ cows and includes biogas cookstoves, water heaters, burners, and related appliances and spare parts.
4 investors
Sizable Energy develops offshore pumped hydro energy storage technology that uses reservoirs and reversible pump-turbines to store energy at sea. The company serves renewable energy operators and grid operators seeking long-duration energy storage solutions.
4 investors
Skyven develops solar thermal collectors and energy solutions for large manufacturing facilities to reduce industrial heating costs and carbon emissions. The company partners with manufacturers to improve competitiveness through thermal energy innovation.
4 investors
Splight builds AI-driven, software-based advanced transmission technology that combines real-time data to unlock additional usable transmission capacity and improve grid reliability for transmission owners, renewable generators, and large loads. Its product addresses grid congestion and interconnection delays by turning generators, batteries, and loads into fast-responding reliability assets across energy systems.
4 investors
Standard Nuclear manufactures TRISO nuclear fuel for advanced reactors, establishing a domestic fuel supply chain for the nuclear energy sector in the United States. The company focuses on scaling advanced fuel production to support the deployment of next-generation nuclear power plants.
4 investors
Stem provides an integrated software suite, PowerTrack, for monitoring, developing, deploying, and operating solar and energy storage assets, serving asset owners, operators, and stakeholders in the clean energy sector. The company supports its software with professional and managed services and operates in over 50 countries.
4 investors
Sun King designs, installs, and finances off-grid solar productsβincluding solar lanterns, solar home systems, and multi-kilowatt invertersβfor households and businesses without reliable grid access. It offers flexible pay-as-you-go installment financing (EasyBuy) and serves customers across Africa, Asia, Asia-Pacific, and Latin America.
4 investors
Supercritical develops a high-pressure, efficient electrolyser technology for producing green hydrogen, enabling industrial transition away from fossil fuels. The company serves industries requiring hydrogen for chemical production, refining, and energy applications.
4 investors
Swift Solar develops high-efficiency solar cells using perovskite-silicon tandem technology combined with silicon heterojunction, aiming for panels that produce up to 1.5x the power of conventional silicon. It targets data centers, space, defense, and utility-scale, commercial, and residential solar markets, with manufacturing based in the US.
4 investors
Synergi operates a platform that connects and optimizes distributed energy resources (EVs, solar, heat pumps, batteries) to balance electricity supply and demand across households and the grid. It serves consumers seeking to reduce energy bills and utilities looking to aggregate flexibility from residential devices.
4 investors
Synop provides an all-in-one software platform for managing commercial electric vehicle fleets, charging stations, and distributed energy resources such as battery storage. It helps fleet operators optimize charging, energy management, uptime, and costs across their EV and energy assets.
4 investors
Synota develops technology for decentralized energy systems. The company serves the energy sector with solutions designed to support a decentralized energy future.
4 investors
Tachyus builds AI and physics-based models for oil and gas operators to optimize reservoir management, increase production, and reduce operational costs and greenhouse gas emissions. It also offers a GHG emissions management platform for accounting, monitoring, forecasting, and regulatory reporting across emissions-intensive industries.
4 investors
Tank Utility offers an LTE-connected tank monitoring device and mobile app that tracks fuel levels and alerts users before they run out, helping fuel delivery operators reduce the number of deliveries needed. The product is aimed at propane and fuel delivery businesses managing tank refills.
4 investors
TOBE develops isothermal electrolysis technology for industrial-grade hydrogen production with >92% efficiency, using a pulsed waveform architecture that eliminates waste heat without rare earth materials. The company serves industrial hydrogen production customers seeking to reduce costs and environmental impact compared to conventional electrolysis methods.
4 investors














