Energy Startups

St1 Biokraft produces biomethane from biogas across the Nordic region, serving heavy transportation, maritime, and industrial customers. The company manages the entire value chain from feedstock sourcing through distribution, operating 12 biogas production plants and a logistics network.

1 investor

StackEase operates battery energy storage systems on the French public distribution network, maximizing net revenue through multi-market aggregation and optimization algorithms. The company serves battery developers, owners, and aggregators seeking to improve returns on standalone or co-located battery assets.

1 investor

Stake Center Locating is a utility locating service provider operating across 48 contiguous U.S. states, specializing in damage prevention and infrastructure identification for utility companies and construction clients.

1 investor

Stallion Infrastructure Services is a nationwide, turnkey provider of jobsite and oilfield support infrastructure, renting mobile offices, workforce housing, portable sanitation, power and lighting, AI-enabled surveillance, and satellite connectivity. It serves construction, oil and gas, mining, data centers, renewable energy, government, healthcare, and emergency response operations across the United States.

1 investor

Stampede Drilling Inc. is an energy services company providing contract drilling services to the oil and gas industry in Western Canada, operating a fleet of telescopic double and triple drilling rigs. Headquartered in Calgary, Alberta with field offices in Saskatchewan and Alberta, it trades on the TSX Venture Exchange under the symbol "SDI".

1 investor

Stan's Heating, Air, Plumbing & Electrical is a family-owned company providing residential HVAC, plumbing, electrical, and energy-efficiency services, including installation, repair, and maintenance for existing homes, custom builds, and production builders. Founded in 1954, it serves homeowners and builders in the Austin, Texas area.

1 investor

Standard Lithium Ltd. is a lithium development company. This page is an investor stock information and email-subscription page, offering limited detail about the company's operations.

1 investor

Inviscid AI develops physics-informed AI technology for real-time building simulation and energy optimization. The company's digital twin platform integrates with existing building management systems to provide HVAC control recommendations that reduce energy consumption while maintaining thermal comfort.

1 investor

StandardX builds an isotope refinery platform for sovereign production of medical and industrial isotopes in the UK and Europe, replacing fragmented supply chains with a single compact system designed initially for cancer care applications.

1 investor

Stardust Solar is a licensed electrical contractor that installs residential, commercial, and cottage solar photovoltaic systems and operates a solar training franchise across North America, offering CSA- and NABCEP-accredited certification courses. Founded in 2017, it runs a network of trained/certified individuals and franchisees and also installs battery storage such as the Tesla Powerwall.

1 investor

Stargate Hydrogen manufactures industrial alkaline electrolysers that produce green hydrogen for steel manufacturing, enabling low-carbon steelmaking routes like hydrogen-based direct reduced iron. The company provides scalable hydrogen production systems to support decarbonisation in the global steel production industry.

1 investor

Starkoff (스타코프) manufactures and installs electric-vehicle charging equipment in South Korea, including slow chargers (7kW/11kW) and metered outlet-type chargers with fire-prevention functions and QR-code payment. It operates a charging network with an accompanying app, serving EV drivers and site owners through free equipment leasing and after-sales support.

1 investor

Starlight Charging manufactures and installs low-cost, reliable electric vehicle chargers designed for simple user experience. The company serves property owners, managers, electricians, and drivers across residential and commercial settings.

1 investor

Stations-e is France's first national network of multi-service electric charging stations, providing charging infrastructure and related services for electric vehicle owners, municipalities, and businesses. The company operates as a global supplier and mobility operator focused on making electric vehicle charging simple and accessible.

1 investor

Project Omega recycles spent nuclear fuel and develops next-generation nuclear power systems for national security, energy independence, and waste remediation. The company builds portable power sources and fuel recycling infrastructure to meet growing U.S. energy demand.

1 investor

Steelhead LNG is a developer and licensor of a patented floating LNG export facility design (At-Shore LNG) that reconfigures traditional onshore LNG plant elements to lower cost and carbon footprint. It targets LNG project proponents, licensing its modular, air-cooled, electric-driven facility design for the natural gas liquefaction and export industry.

1 investor

Steeper Energy develops core technologies and engages in commercial project development, with a team of scientists and engineers working from locations in Denmark and Canada.

1 investor

Stellios develops high-power microwave and RF power systems, including vacuum HPM devices, high-voltage modulators, gyrotrons and klystrons, and applies them to directed-energy defense platforms against drones and guided munitions. The company is also developing compact fusion power for grid-scale and expeditionary use and fusion-driven in-space propulsion.

1 investor

Steve Vick International (SVI) provides trenchless technologies, equipment hire, and specialist contract services used to renew and maintain underground utility infrastructure across the gas, water, and nuclear industries. Founded in the UK, the company manufactures signature technologies such as live gas mains insertion and serves utility operators through distributors in multiple countries.

1 investor

Stiesdal develops climate technologies across several business areas, including industrialized floating offshore wind foundations, green hydrogen plants for Power-to-X, and systems combining green fuel production with carbon capture and storage. The company focuses on hardware and technology for renewable energy and decarbonization.

1 investor

Stimline provides software and automation systems for oil and gas well completion and intervention operations, including its IDEX collaboration platform used by energy and service companies for drilling, completion, intervention, and P&A. Its products cover automated wireline, coiled tubing, and carbon rod systems as well as digital planning and rig-site execution tools.

1 investor

1 investor

Standard Energy develops vanadium ion battery technology for the energy storage market, departing from conventional battery approaches to create novel battery chemistry solutions.

1 investor

STOFF2 produces green hydrogen through zinc intermediate step electrolysis, a technology that combines hydrogen generation with energy storage using renewable sources like solar and wind. The system reduces hydrogen production costs by using electricity during periods of surplus renewable generation and operates without requiring critical materials like platinum, cobalt, or lithium.

1 investor