Energy Startups

Solease offers home sustainability products for residential customers in the Netherlands, including solar panels (to rent or buy), insulation, heat pumps, home batteries, and EV chargers. It also provides a home scan to advise homeowners on the best energy-efficiency improvements for their property.

1 investor

Solgraph produces battery-grade crystalline graphite through direct solar pyrolysis of hydrocarbon gas, a process developed from UCLA research that captures graphitic carbon without CO2 emissions. Its technology targets the U.S. energy storage and battery supply chain, where battery-grade graphite is almost entirely imported.

1 investor

SOLHO designs, builds, and operates large solar thermal systems (its SPRHOUT unit) that convert solar energy into heating and cooling for medium and large industrial and residential clients, and also offers photovoltaic and renewable energy community installations. Founded by Italian energy researchers in Delft, Netherlands, it operates in Italy where it offers heat-as-a-service (HAAS) contracts.

1 investor

Solid Ox Motors develops powertrain technology that uses solid oxide fuel cells (SOFCs) to trickle-charge batteries from distributable hydrocarbons while capturing and liquefying the resulting CO₂ for sequestration and recycling. Its technology is being applied to electric vehicles, as shown by a prototype developed with Smith EV.

1 investor

Solight Energy develops industrial sunlight collection systems that concentrate and transport natural light over long distances for indoor illumination. The company serves facilities requiring efficient lighting solutions for large interior spaces.

1 investor

SOLiTHOR develops solid-state battery cells using a Solid Composite Electrolyte (SCE) technology designed for higher energy density and commercial scalability. The company serves the EU battery ecosystem and automotive markets requiring advanced rechargeable lithium battery solutions.

1 investor

Solmetric (part of Fluke) makes software for analyzing photovoltaic array performance, including tools to control the PVA-1500 measurement hardware and automate analysis of I-V curve data from solar sites. Its products serve solar installers and PV testing professionals who need to measure, analyze, and report on solar array performance.

1 investor

SOLminer builds and operates cryptocurrency mining farms with a focus on sustainable practices. The company serves individual investors and businesses seeking efficient access to cryptocurrency mining.

1 investor

Solnce provides solar panel installation, maintenance, and cleaning services to homeowners and businesses in Surat, along with financing options to reduce electricity costs.

1 investor

solor is developing a patent-pending photovoltaic paint, applied via robotic ultrasound spraying on surfaces such as metal, glass, and polymers, that converts sunlight into electricity. The B2B solution integrates solar energy generation directly into manufacturers' production lines for products that "sit in the sun."

1 investor

SOLS Energy is a residential solar company that designs and installs solar PV systems for homes across Malaysia, and runs off-grid solar and job-training programmes for Orang Asli and other low-income Indigenous communities. It operates SEDA-registered installations under Solar ATAP and directs a share of profits to community impact programmes.

1 investor

SOLV Energy constructs and operates utility-scale solar and energy storage projects across the United States, delivering engineering, procurement, and construction services alongside long-term operations and maintenance. The company serves renewable energy developers, independent power producers, and utilities with integrated solutions from project inception through asset lifecycle management.

1 investor

Solvionic produces high-purity ionic solutions — ionic liquids, electrolytes, and metallic salts (purity above 99.9%) — for applications including energy storage and surface treatments. Its non-flammable electrolytes are aimed at making Li-ion batteries more performant and safer.

1 investor

Solzaima offers biomass heating solutions for home heating, providing guidance on choosing and buying equipment along with technical assistance, maintenance, warranty support, and spare parts. It also runs the MyStove/MySolzaima customer portal for account holders.

1 investor

SOMALEV Group operates through five entities providing logistics, crane services, and heavy equipment solutions for oil & gas, wind, and industrial sectors primarily across Africa and the MENA region. The group's services include integrated logistics, port handling, equipment distribution, and heavy equipment maintenance.

1 investor

Sonnen provides intelligent energy storage systems, virtual power plants, and clean electricity solutions for residential customers globally. The company offers hardware including battery systems and EV charging stations, alongside personalized electricity contracts and services.

1 investor

Sonocharge develops a piezoacoustic platform technology that improves lithium-ion batteries by enhancing lithium diffusion kinetics, enabling faster charging, longer lifespan, and reduced fire risk. It targets applications including passenger and commercial EVs, grid storage, datacenters, and other high-performance battery uses.

1 investor

A nonprofit that installs solar power systems, working with local installers to bring reliable electricity to healthcare, education, water supply, and irrigation projects in areas lacking dependable power. It funds installations through an ongoing crowdfunding campaign called "Sunrays."

1 investor

Soto Solar offers tailored Power Purchase Agreements (PPAs) for large companies in Spain to adopt renewable energy and cut CO₂ emissions, whether or not they have available rooftop space. It provides a PPA simulator that delivers immediate results for planning long-term energy strategies.

1 investor

Sound Energy converts waste heat into cooling using thermoacoustic technology, eliminating the need for traditional refrigerants and harmful chemicals. The company serves buildings, factories, industrial processes, and maritime projects seeking energy-efficient cooling solutions.

1 investor

Soutag is a free mobile app that gives professional drivers—such as rideshare drivers, taxi drivers, truckers, school transport operators, and independent couriers—access to discounted, quality fuel (gasoline, ethanol, and diesel) plus exclusive promotions and benefits. It operates in several Brazilian states including Minas Gerais, Bahia, Espírito Santo, and the Federal District.

1 investor

Southern Green Gas develops Direct Air Capture (DAC) technology that removes carbon from the atmosphere for positive use in energy processes. The company is bringing its DAC module to market, targeting renewable energy and climate mitigation applications in Australia.

1 investor

Southwire manufactures power and electrical products including cables, wiring, and related infrastructure for grid applications, construction, electric vehicles, and data centers. The company serves utility operators, construction companies, automotive and maritime industries, and critical infrastructure operators.

1 investor

Sparsystems converts waste heat from data centers into usable electricity through regenerative cooling systems, reducing grid dependence and emissions. The company offers modular products tailored to different heat temperature ranges and data center configurations.

1 investor