Energy Startups

Rovilus develops battery thermal management technology that uses a dielectric phase-change material and compact liquid cooling to keep high-power battery packs cool, suppress fires, and extend pack life. Its technology targets industrial electrification applications such as construction and off-highway machines, forklift and warehouse fleets, and stationary energy storage.

1 investor

Rox Electric designs and manufactures electrical insulation modules for power transmission and distribution equipment, serving industrial clients including State Grid of China, ABB, Siemens, Schneider Electric, and GE. The company provides insulation solutions across 12-1100kV voltage grades and serves over 22 countries globally.

1 investor

RRC Companies is a multidisciplinary engineering firm providing comprehensive design and engineering services for renewable energy projects (solar, wind, energy storage) as well as traditional hydrocarbon energy infrastructure. The firm serves developers, owners, and engineering-procurement-construction firms across the United States, Canada, Latin America, and Southeast Asia.

1 investor

The Royal Society of Chemistry is a professional membership organisation that connects the global chemistry community through partnerships, conferences, networks and publications. It sets standards for chemical scientists, promotes open access to scientific knowledge, and advocates for chemistry's role in addressing societal challenges including healthcare, environmental protection, and clean energy.

1 investor

RS Resilient Structures manufactures advanced composite utility poles designed for electric grid infrastructure, serving utility companies globally. The poles are engineered for durability in extreme environments, helping utilities reduce outages and strengthen critical electrical systems.

1 investor

Ruhrpumpen manufactures heavy-duty horizontal centrifugal pumps built to industry standards for high-flow and high-pressure applications. The pumps serve oil & gas, power generation, and water & wastewater industries requiring reliable continuous-duty operation.

1 investor

RUUF is a solar energy company that handles residential solar panel installation end-to-end, including evaluation and design, technical site visits, scheduling and installation, certification and grid connection, and ongoing support and monitoring. It serves homeowners in Chile.

1 investor

Rux Energy develops advanced nanoporous materials and storage systems for hydrogen, targeting decarbonization of heavy transport, maritime, aviation, and industrial sectors. The company operates in Australia and the UK with a focus on enabling a transition to renewable energy infrastructure.

1 investor

Rymel (Rymel Ingeniería Eléctrica S.A.S.) designs and manufactures electrical transformers and related equipment, and provides technical services such as maintenance, electrical testing, transformer repair, oil analysis, and thermography. It serves industrial and electrical infrastructure projects, with a research and innovation unit (Rynova) focused on materials, processes, and product technologies.

1 investor

S-Graphene is a materials company that develops graphene application technology, including mass-production methods for forming nano-holes in graphene and growing graphene on metal. It supplies customized nano-materials for next-generation products in industries such as secondary batteries (as anode and separator materials), semiconductors, filters, and bio applications.

1 investor

S2G Investments is a venture capital firm that invests in market-based solutions across food and agriculture, oceans, and energy, focusing on interconnected, commodity-driven, policy-sensitive sectors with hard-to-abate emissions. It backs entrepreneurs and leadership teams pursuing innovative technologies and business models aimed at improving environmental and human health outcomes.

1 investor

Sabalo II Energy is an exploration and production company that acquires and develops upstream oil and gas assets. The company maintains relationships with service providers, other E&P companies, and financial partners.

1 investor

SABIC is one of the world's largest petrochemicals manufacturers, producing innovative chemical solutions for customers across more than 140 countries. The company operates global manufacturing, technology, and innovation facilities managed through four regional offices.

1 investor

Sabre Industries designs, engineers, and manufactures mission-critical infrastructure for power, utility, telecom, and data center sectors across the United States. The company serves utility companies, telecommunications providers, and data center operators with engineered structures, transmission towers, enclosures, and related infrastructure solutions.

1 investor

SAC Wireless provides general contracting and infrastructure services to wireless carriers, tower managers, utilities, and private network operators. The company manages site acquisition, permitting, design, and deployment of wireless networks, fiber infrastructure, electric vehicle charging stations, and commercial solar energy systems.

1 investor

Safegrid develops the Intelligent Grid System, a smart grid platform offering fault detection, predictive analytics, and grid monitoring for electric utility customers. The company was founded in Finland in 2019 and was acquired by G&W Electric in May 2026.

1 investor

Safeguard Equipment makes the Compass, a wearable safety device that detects energized electrical hazards such as downed conductors to protect utility and line workers in the field.

1 investor

Sagerider provides technical downhole solutions and services for oil and gas operators to increase productivity and reduce operational costs across emerging and legacy assets.

1 investor

SaiFlow provides cybersecurity for distributed energy infrastructure, using unified cyber and energy data with AI to protect it in real time. It serves the energy sector, focusing on securing distributed energy resources during the energy transition.

1 investor

SAILWINT produces hydrogen and electricity from autonomous sailing wind turbine ships that operate in offshore waters. The company targets energy producers and maritime industries seeking clean power generation at scale.

1 investor

S-Alpha Energy offers solar-powered products including solar inverters, power stations, fans, and solar kits. It targets consumers seeking off-grid and renewable energy solutions.

1 investor

Saltfoss is developing the seaMSR-100, a molten salt nuclear reactor deployed on shipyard-produced floating platforms that combine multiple 100 MWe units for configurations from 100 to 600 MWe. The company targets low-carbon baseload power for coastal cities, industrial hubs, and energy-intensive industries.

1 investor

PT Samator Indo Gas is an industrial gas manufacturer producing chemicals such as nitrogen, oxygen, and carbon dioxide for industrial applications. The company is the largest national industrial gas company and is publicly listed on the Indonesian Stock Exchange.

1 investor

SAMAWATT offers an integrated platform for forecasting, aggregation, trading, and optimisation of renewable energy assets, aimed at solar developers, wind and battery (BESS) operators, utilities, IPPs, energy traders, and aggregators. It serves operators ranging from single 10 MW plants to multi-GW portfolios across Europe, helping them capture higher market prices and reduce imbalance costs.

1 investor