Energy Startups

Thames Water is a water and wastewater utility company providing drinking water and sewerage services to millions of people across London and the Thames Valley. The company is undertaking a £20 billion network upgrade program focused on fixing leaks, reducing pollution, and protecting water quality across its 140,000km of pipes and sewers.

1 investor

TAEF is a multilateral financial institution that provides corporate banking, investments, and treasury and capital markets services to corporate, institutional, and sovereign entities. The organization operates under a Central Bank of Bahrain banking license and maintains stringent AML/CFT compliance protocols aligned with international standards.

1 investor

The Electric Storage Company operates an AI platform paired with an in-house trading desk to optimise and trade flexible energy assets such as battery storage across wholesale, balancing and ancillary markets. Its forecasting and decision engine predicts demand, generation and market value and dispatches assets in real time to maximise asset owners' revenue.

1 investor

Washington Nature works on environmental conservation in the Columbia River Basin, pursuing habitat restoration, policy advocacy, and clean energy capacity-building in partnership with Tribes and First Nations to support salmon recovery and local communities and economies.

1 investor

The Pennycress Company develops pennycress oil as a renewable fuel feedstock for biodiesel, renewable diesel, and sustainable aviation fuel production. Grown as a winter annual on fallow farmland, the feedstock avoids crop displacement while reducing lifecycle greenhouse gas emissions and qualifies for government low-carbon fuel incentive programs.

1 investor

Thermagix develops patented Phase-Change Thermoacoustic technology to capture and convert industrial low-grade waste heat that was previously unrecoverable. It targets industrial businesses seeking to recover wasted energy and reduce carbon emissions.

1 investor

Thermagy (formerly RGS) develops thermoelectric technology that converts heat into electrical power, including radioisotope thermoelectric generators for extreme environments like deep space and deep sea, as well as local combined heat and power from renewable sources and solid-state thermoelectric cooling. Its products target demanding applications requiring power generation and thermal management.

1 investor

ThermAI builds hardware nodes that capture waste heat from AI computation and redistribute it to heat residential homes, aiming to cut household energy bills and reduce energy waste from data centres. It offers home heating via a pilot program and rentable compute power, serving UK homeowners.

1 investor

Thermal Storage Finland (TSF) offers the Hybridilämpövoimala™, a hybrid heat plant with a control system that optimizes the use of available heat sources to produce heat in the most efficient and cost-effective way. It provides emission-free heat production solutions for industry and real estate across several European markets.

1 investor

Thermalytica develops advanced aerogel-based thermal insulation materials and EB-PVD coatings used to improve energy efficiency and protect components in high-temperature environments. Its products serve industrial and commercial applications such as buildings, poultry farms, and data centers.

1 investor

Thermeleon builds a heat battery ("Warmtebatterij") for greenhouses that stores surplus heat during the day and releases it at night to provide cooling and heating, reducing energy demand and CO2 use. The customizable product is aimed at growers looking to improve greenhouse energy efficiency without production loss.

1 investor

ThermoVault makes a smart controller with self-learning algorithms that optimizes existing electrical water heaters, storage heaters, and heat pumps to reduce home electricity bills. By using these devices as thermal storage, it helps integrate renewable energy into the grid for residential energy consumers.

1 investor

ThermoKey manufactures heat exchangers and cooling solutions for air conditioning, refrigeration, data center cooling, and industrial applications. The company specializes in aluminium microchannel technology designed to reduce refrigerant usage and support low-GWP alternatives.

1 investor

Thésée Datacenter is a French data center hosting provider offering Tier IV certified colocation with high availability, high-density/HPC capacity, and energy-efficient indirect free-cooling. It operates dual sites in the Paris region for hosting critical data.

1 investor

The Switch develops permanent magnet and DC switchboard technologies for the marine industry to generate, use, and distribute energy more efficiently. The company targets decarbonization in maritime applications through advanced electrification solutions.

1 investor

THG Energy provides a unified data platform that connects energy stakeholders including brokers, providers, businesses, institutions, industrial users, and governments to access and align on energy data.

1 investor

Thin Line Capital is a venture capital firm that invests $400-$600k into seed-stage, low-capex climate-tech companies focused on renewable energy, electrification of transport, and climate resiliency. Founded and run by former entrepreneurs, it takes an active partner role supporting founding teams in the energy and sustainability sectors.

1 investor

Think Power Solutions provides safety training and utility infrastructure solutions for the energy sector, emphasizing worker safety, compliance, and risk management in electrical line work and transmission/distribution operations.

1 investor

Third Wave Power makes portable, solar-powered energy products for use off the power grid, including field work, emergency backup, and outdoor or rural settings. The company also combines solar with IoT connectivity for off-grid consumer products and sensor solutions for smart city applications.

1 investor

A foundation providing educational information about molten salt reactors and thorium technology as potential solutions for fossil-fuel-free energy transition. The organization offers scientific resources and maintains advisory expertise from leading Dutch technical institutions.

1 investor

Tidewater Terminal Company operates five multi-commodity marine terminals along the Columbia Snake River System that provide logistics solutions including blending, treating, and transloading services, connecting regional transportation networks.

1 investor

Tidewater Midstream and Infrastructure is a diversified energy infrastructure company operating across North American gas processing, natural gas liquids extraction, petroleum refining, and renewable fuels markets. The company serves customers in the midstream and downstream energy sectors with integrated value chain services.

1 investor

Tierra Climate offers an AI-powered platform that acts as a command center for operating clean energy portfolios in volatile power markets, unifying forecasting, optimization, energy trading, portfolio analytics, and reporting. It serves energy teams and organizations managing complex asset-backed clean energy portfolios, including battery storage assets.

1 investor

Tilia is a consulting and project development firm working with utilities, municipalities, industry, and housing companies on energy, water and wastewater, mobility, circular economy, smart grid, and smart city infrastructure. Its services range from advisory and project management to jointly developing, implementing, and co-investing in sustainability projects, and it operates internationally with references in over 20 countries.

1 investor