Energy Startups

Curo provides electric vehicle charging infrastructure and parking facilities for commercial fleets across the United States. The company operates a network of dedicated electrified parking stalls offering Level 2 and DC fast charging, while generating revenue for property owners by monetizing underutilized parking spaces.

4 investors

DayOne builds data center infrastructure using prefabricated modular construction, liquid cooling technologies, and a proprietary infrastructure management platform for hyperscale and edge clients. Its work includes projects in Johor, Malaysia, with a focus on fast delivery, energy efficiency, and sustainable, renewable-ready design.

4 investors

Deftpower offers a white-label SaaS platform for EV mobility service providers, connecting drivers, charge point operators, and energy markets to enable smart charging, dynamic tariff optimization, and fraud prevention. Its products include a branded driver charging app with access to charging networks across Europe, a business portal for buying and selling electricity, and developer APIs.

4 investors

Dimensional Energy develops catalyst and service technology for producing sustainable fuels, licensed to project partners through a recurring, capital-light licensing model. The company sells catalyst and service bundles to enterprises and project developers.

4 investors

e-mobilio provides a digital ecosystem for electric mobility, offering fleet electrification, charging infrastructure, billing systems, and a digital purchase advisor with product matching for EV charging stations and wallboxes. It serves fleet managers, car dealerships, OEMs, and private customers, operating in Germany.

4 investors

e-peas develops energy harvesting power management ICs (ambient energy managers) and low-power microcontrollers that improve the autonomy of intelligent devices for markets including smart home, consumer electronics, and industrial IoT. The company designs semiconductor solutions for connected devices.

4 investors

e-Zinc develops zinc-based long-duration energy storage technology that decouples energy from power to provide reliable, lower-cost backup power and grid support. The modular, scalable system serves grid operators and end-users seeking resilient, low-carbon alternatives to fossil fuel power.

4 investors

Ecolectro is an e-commerce site providing information on goods and services, with the ability for users to contact the company and sign up for a mailing list.

4 investors

Efficient Computer develops a programmable processor architecture designed for energy efficiency in general-purpose computation, including AI applications. The company targets customers seeking computationally intensive solutions where energy constraints are currently a limiting factor.

4 investors

Electra operates a network of fast-charging stations for electric vehicles across Europe, aiming to remove adoption barriers by making EV charging convenient and time-efficient for motorists. The company innovates across technology, infrastructure, and mobility services to establish itself as a European leader in EV charging infrastructure.

4 investors

Electra AI offers an AI software platform ("AI Brain for Batteries") that provides real-time monitoring, predictive maintenance, and optimization for batteries used in utility-scale energy storage systems (BESS), EVs, robotics, and aviation. Its analytics tools estimate battery state of health, extend battery lifespan, reduce downtime, and improve return on investment for operators across the energy and mobility sectors.

4 investors

eFlow extracts lithium from dilute brines in North America using direct lithium extraction technology, serving the clean energy and electric vehicle supply chain. The company focuses on domestic lithium production with minimal water and chemical use, positioning itself as an alternative to traditional mining operations.

4 investors

Element Energy develops an adaptive battery management system that improves safety, longevity, and energy output for battery packs through cell-level monitoring and management algorithms.

4 investors

Elephant Energy provides end-to-end home electrification services for homeowners, handling heat pump and heat pump water heater installation including sizing, contractors, rebates, inspections, and electrical work. The company operates in the residential climate and clean energy market, serving areas including Colorado, Boston, and Los Angeles in the US.

4 investors

Eli is an AI-native energy program implementer that automates the steps between funding and installation, handling eligibility, qualification, verification, payments, and compliance for energy incentive and rebate programs (such as Mass Save). It combines program administration and financial services to process payments and pay contractors within 48 hours.

4 investors

Delta provides telecom power and infrastructure systems, including rectifiers, power cores, indoor/outdoor systems, DC distribution units, renewable and hybrid energy setups, converters, controllers, enclosures, lithium-ion batteries, and UPS. It serves telecom operators, network owners, and integrators across Europe, the Middle East, and Africa, supporting 5G base stations, central offices, and data centers.

4 investors

Energy Impact Partners is an investment firm that connects entrepreneurs with large corporations to fund and support companies working on transforming the global economy toward decarbonization.

4 investors

Energy Vault designs and integrates energy storage products and management software for grid-scale and utility customers, spanning battery, gravity-based, and hydrogen storage systems. Its offerings support renewable energy integration, asset optimization, and long-term service for large storage projects.

4 investors

EnOcean develops energy-harvesting wireless technology that converts ambient energy into power, enabling battery-free devices and sensors for smart building automation. Its products support multiple wireless protocols including Bluetooth, Zigbee, and EnOcean, and integrate with IoT systems for more efficient, connected buildings.

4 investors

Erg Bio converts waste biomass into fermentable sugars and intermediates for synthetic aviation fuels and chemicals, using an advanced solvent process and a proprietary yeast that produces enzymes and ferments sugars. The technology is feedstock-agnostic and licensed from the DOE Joint BioEnergy Institute, targeting energy and chemical production markets.

4 investors

Estes Energy Solutions builds Magnus, a magnesium-alloy battery platform delivering 225 Wh/kg using commercially available lithium-ion cells, designed for transport sectors including rail, marine, aviation, and on/off-highway vehicles. The company designs and manufactures its advanced battery systems entirely in the United States.

4 investors

Feon develops high-performance battery electrolytes using a discovery platform (EDGE) to improve battery performance, safety, and cost across various battery chemistries. Its electrolytes support clean energy storage for applications including mobility and electronics.

4 investors

FlexiDAO provides data, software, and advisory services for managing, trading, and reporting on renewable energy portfolios, helping customers assess climate-related risks and pursue carbon-aware procurement. It serves clients across Europe, the US, and the APAC region in the clean energy sector.

4 investors

Founder Factor is an investment firm for YC founders, with a team of accomplished YC alumni and operators who have collectively invested in over 1,200 companies and co-founded more than 100. The firm focuses on early-stage investments primarily in Gen AI, Fintech, and Energy sectors.

4 investors