Energy Startups
5,168 companies tagged Energy, with their investors and founders.
H2Clipper (H2C) develops airships for long-haul transport of liquid green hydrogen and a "Pipe-within-a-Pipe" system for last-mile distribution of gaseous hydrogen. The company aims to make green hydrogen affordable and accessible to accelerate the hydrogen economy and replace fossil fuels.
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Headwater Gold explores and develops high-grade gold deposits in the western United States, focusing on economically viable discoveries in established mining districts with strong infrastructure and permitting frameworks.
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Heartwood processes forest waste materials including scrap, thinning, and wildfire mitigation debris into kiln-dried firewood, trellis poles, wood chips, and engineered mulch products. The company serves forestry, agriculture, construction, and land restoration markets while supporting rural employment and forest preservation.
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Hexagon Energy develops and finances renewable power projects—including solar, energy storage, and geothermal—serving large utilities and asset owners. The company covers the full development and finance spectrum, from site control and permitting to engineering and financial modeling, working on projects in the U.S. and abroad.
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Higher Wire Inc. designs and manufactures lithium-ion energy storage systems (ESS) using domestically-sourced cells and components, with a focus on extending the useful life of these systems through a circular economy model. The company operates a manufacturing facility in Phoenix, Arizona, and targets the U.S. clean energy market with affordable, standardized storage solutions.
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Highland Copper is a copper development company advancing the fully permitted Copperwood Project in Michigan, USA, with a completed 2023 feasibility study and a targeted 2027 construction decision. It focuses on domestic U.S. copper production to serve critical-mineral supply chains driven by electrification, AI infrastructure, and defense demand.
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HighT-Tech develops advanced battery membranes and components using ultra-high strength (UHS) technology to improve performance, safety, and lifespan in battery applications. The company serves manufacturers of consumer electronics, electric vehicles, and grid-scale energy storage systems.
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Holu Hou Energy designs proprietary energy storage systems and control platforms, including its EnergyShare technology for multi-dwelling unit residential buildings, alongside single-family residential and commercial markets. It provides decarbonization and renewable energy solutions for building owners and investors, with operations across several U.S. states and Shanghai.
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