Energy Startups

Icarus RT develops hybrid photovoltaic/thermal solar-plus-storage systems aimed at increasing power output while reducing physical footprint. The company operates as a cleantech research and development startup focused on solar energy solutions.

1 investor

ICE operates regulated futures exchanges and clearing services that enable derivative trading across multiple asset classes including energy, fixed income, currencies, and metals. The company provides trading platforms and data services to financial market participants globally.

1 investor

ICE Thermal Harvesting converts waste heat from industrial operations into zero-emission electricity using modular, portable systems. The company serves oil and gas, cement, metals refining, and power plant operators seeking decarbonization and waste heat recovery.

1 investor

ICONICS provides building automation and energy management software that monitors data points, building faults, and energy usage across facilities. Its tools help facilities and energy teams improve operational efficiency in buildings.

1 investor

iGii develops and manufactures Gii, a proprietary 3D porous pure carbon material for high-performance sensing, heating, and energy technologies. The company serves multiple industries requiring advanced materials for next-generation products.

1 investor

IGS develops imaging and visualization technology based on inverse scattering theory to enable observation of previously invisible structures and phenomena. The company applies this core technology to solve problems in medical imaging, energy, infrastructure, and security sectors.

1 investor

ilek is a French green energy supplier that sources 100% renewable electricity and biogas from local producers in France, including wind, solar, hydroelectric, and biomethane facilities. It connects consumers directly with French producers, channeling over 45% of each bill to the producer.

1 investor

Impact is an oil and gas exploration company focused on large-scale, mid to deep water projects designed to attract major industry players.

1 investor

Impala Energy is a power development company focused on small-to-medium natural gas and clean power projects in sub-Saharan Africa, developing, building, owning and operating its own assets. It is currently developing a project in southern Nigeria to capture flared natural gas and supply it to commercial and industrial clients as a replacement for diesel.

1 investor

Imperative Chemical Partners is the largest privately held oilfield chemical services company in North America, providing specialized chemistries and application methodologies for exploration & production and midstream operators in oil and gas basins. The company leverages in-house manufacturing, blending, R&D, and product technology capabilities to deliver chemical solutions tailored to the unique requirements of energy sector clients.

1 investor

Impulse Labs develops a battery-integrated platform for home appliances that delivers high power from standard 120V outlets, enabling cooktops and other appliances with professional-grade performance without electrical upgrades. The platform includes power electronics, battery management, sensors, and cloud connectivity software that appliance manufacturers integrate into their products.

1 investor

In Charge One is a US company working on electric vehicle charging infrastructure. It is currently in stealth mode, and details of its products and customers have not been disclosed.

1 investor

Inclusive Energy provides digital tools for energy entrepreneurs to scale off-grid, distributed clean energy solutions, aimed at expanding energy access in under-served and emerging markets. The company focuses on energy poverty reduction and climate change mitigation.

1 investor

IncubEx develops and lists environmental commodity products, including futures and options on carbon offsets (Certified and Verified Emission Reductions) and Renewable Energy Certificates (RECs) across various U.S. state compliance programs. The company operates in the environmental and energy markets, serving traders and participants in carbon and renewable energy certificate markets.

1 investor

Indus Towers operates and manages telecommunications tower infrastructure for mobile network operators across India. The company provides tower operations, smart city solutions, and green technology infrastructure services.

1 investor

Industrial Organic designs and deploys solar energy systems ranging from rooftop installations to community-scale energy parks. The company serves customers seeking renewable power solutions with an emphasis on reliability, affordability, and sustainability.

1 investor

Inergy is an IC design company that develops energy-efficient semiconductor components and motor driver systems, including power MOSFETs, BLDC motor drivers, and cooling fan driver ICs. The company serves manufacturers in consumer electronics, automotive, and industrial applications seeking to reduce energy consumption and carbon footprint.

1 investor

InergyTek makes portable power stations, including the Flex Tactical Power Station, developed through work with the U.S. Air Force and U.S. Army. The company sells durable portable energy hardware.

1 investor

Infrastructure Networks provides services to the oil and gas industry.

1 investor

InferModel is an engineering consulting and software firm that builds quantitative risk models and data analytics tools for pipeline integrity, addressing threats such as corrosion and stress corrosion cracking. It serves pipeline operators, helping them prioritize excavations, analyze inspection data, and make integrity management decisions using industry standards like CSA, ASME, and API.

1 investor

Infinigrid provides a near real-time probabilistic risk assessment platform for electricity grid operators, quantifying system risk using metrics such as CENS, KILE, and expected unserved energy to complement traditional deterministic N-1 security checks. It serves transmission system operators, distribution system operators, and asset managers, helping them manage risk, plan investments, and demonstrate compliance with European regulations such as CSAM Article 44.

1 investor

Infranergy provides integrated clean energy and infrastructure solutions—including utility-scale solar and battery systems, AI datacenter power, and AI-powered virtual power plant software (SolbloX)—for government agencies, utilities, hyperscale data centers, investment funds, and commercial clients. As a certified U.S. federal contractor, it also offers power-as-a-service agreements, energy efficiency upgrades, and grid services.

1 investor

InfraSure provides forward-looking, asset-specific risk, insurability, and resilience intelligence for U.S. energy infrastructure, combining physical and financial modeling of each utility-scale plant through a single scenario engine. It serves owners, investors, and lenders with workflows for portfolio screening, single-asset evaluation (DSCR stress and bankability), and risk mitigation (parametric structures and resilience planning).

1 investor

Infravision builds drone-enabled automation technology for electric grid construction, aiming to make building power infrastructure faster, safer, and more affordable. It serves the energy and utility sector globally.

1 investor