Energy Startups

RESA Power provides electrical services and support across the United States and Canada, serving renewables companies focused on sustainability and commercial establishments seeking operational efficiency.

1 investor

Resalta provides decarbonization-as-a-service in Central and Eastern Europe, offering fully funded energy efficiency and renewable energy projects to commercial, industrial, and public sector customers. The company designs and implements solar installations, heating and cooling systems, and building retrofit programs without requiring upfront capital from clients.

1 investor

Reservoir Group provides services and solutions for drilling, completions, and production operations to exploration and production operators and service companies. The company specializes in coring technology, drilling tools, well monitoring systems, and well intervention solutions across onshore and offshore environments.

1 investor

Reset provides environmental consulting services, including research, analysis, diagnosis, and information provision on environmental regulations covering waste, chemical substances, water quality, and environmental management. It also supports solar power and waste module recycling businesses through registration, licensing, and feasibility analysis.

1 investor

ResFrac develops a fully coupled hydraulic fracturing and reservoir simulator, providing physics-based simulation software and consulting services for oil and gas operators to optimize well spacing, completion design, enhanced oil recovery, and geothermal systems. It serves the North American shale industry, from small independents to supermajors and national oil companies.

1 investor

Reshape Energy provides energy solutions to real estate investors, including photovoltaic systems, battery storage, heating, cooling, and energy management across the project lifecycle. The company offers consulting, financing structures, technology integration, and long-term operation and maintenance services.

1 investor

Resolute Grid manufactures hardware and software for electricity transmission and distribution, aiming to address aging U.S. grid infrastructure and long transformer lead times. Its offering includes domestically produced, cyber-secure grid equipment and an AI/ML system for energy resilience.

1 investor

Resolute Industrial operates multiple business units across the HVACR (heating, ventilation, air conditioning, refrigeration) and power industry, offering services including remanufacturing, sales, and equipment rentals. It serves a range of customers through its established divisions.

1 investor

ResourceCo recovers and re-manufactures primary resources, extracting value from materials that would otherwise go to landfill. It works with governments, communities, and multinational companies to advance the circular economy and preserve natural resources.

1 investor

Reswitch provides a platform for Australian communities to access tangible benefits from nearby energy infrastructure projects such as wind and solar farms. The platform manages community benefit programs including electricity rebates, payments to landholders, and deployment of renewable energy and connectivity solutions.

1 investor

Resynergi converts plastic waste into recycled oil (PyOil) intended to achieve cost parity with conventional crude oil for use in plastics production. The company targets plastic recyclers, manufacturers, and communities seeking economically viable alternatives to virgin fossil fuels.

1 investor

retoflow offers a digital platform for planning electricity and pipe networks, built on the open-source tools pandapower and pandapipes, that connects data from GIS, ERP and metering systems into a central, computable network model for simulation and analysis. It serves utilities, grid operators and engineering firms working on energy transition challenges, and was founded in 2021 as a spin-off of Fraunhofer IEE and the University of Kassel in Germany.

1 investor

Return operates battery storage systems across Europe that stabilize power grids and integrate renewable energy sources. The company serves grid operators, energy producers, and businesses seeking reliable green electricity infrastructure.

1 investor

Return Carbon is a venture builder and investor focused on accelerating the transition to net-zero energy systems. The company works with startups and projects in the energy transition and climate sectors.

1 investor

Reverse Energy Solutions provides dismantling and material recovery services for photovoltaic modules and data center equipment at end-of-life. The company recovers valuable materials for reintegration into supply chains while reducing logistics costs and environmental impact.

1 investor

Revive Infrastructure Group provides telecommunications and utility infrastructure construction services, including telecommunications installation, broadband deployment, and utility contracting across multiple regions.

1 investor

Revolty manufactures and sells lithium battery systems that store solar energy for residential use, with a focus on circular economy by reusing certified second-life battery cells. The company serves French homeowners with solar installations, enabling energy self-consumption and reducing electricity bills.

1 investor

Rexel is a leading electrical equipment distributor supplying products, solutions, and services for energy efficiency, industrial automation, and smart building technologies. The company serves customers through digital platforms offering real-time inventory management and data-driven insights.

1 investor

RF Semi manufactures LED lighting products and smart control systems, including LUNGO LED bulbs, wireless light control systems, and cloud-based smart streetlight management solutions. The company serves retail stores, factories, municipalities, farms, and commercial facilities in South Korea, the United States, Brazil, and Vietnam.

1 investor

Rhebo provides OT (operational technology) security solutions, with a focus on protecting critical infrastructure such as water supply and wastewater systems from cyber threats. Its offerings target industrial and utility operators seeking to monitor and secure their operational networks.

1 investor

Rhino provides an online platform that gives U.S. homeowners instant solar pricing quotes and connects them with local solar installers. It positions itself as a residential solar marketplace focused on upfront pricing and handling the installation process.

1 investor

1 investor

Ride Commerce builds AI agents that co-optimize compute demand and energy distribution, coordinating millions of prosumers and distributed energy assets such as batteries and virtual power plants in real time. It also offers a natural-language interface to Snowflake data warehouses so energy operators can query grid data and get insights without writing SQL.

1 investor

RiDERgy provides advanced energy management software for fleet management and EV charging optimization, serving urban mobility solutions with real-time dynamic load management capabilities.

1 investor