Companies in the energy efficiency sector developing innovative solutions and technologies.
Explore 412 recently funded energy efficiency companies with verified founder contact information and fundraising data.
RocketFrac designs a propellant based fracing technology for economically efficient and environmentally friendly oil & gas recovery.
CleanO2 is a microscale carbon capture solution platform for the commercial heating industry.
Presidio Petroleum is a leading oil and gas efficiency company.
Arthur Inc. provides Bitcoin mining operators with high-performance computing infrastructure.
Hark Technologies is a technology company that develops smart energy optimization solutions for households and commercial buildings.
WEC Energy Group is one of the nation’s largest electric and natural gas delivery companies.
Energy Drive Systems as a Service, Energy Efficiency
BlocPower is an energy technology startup that focuses on developing healthy, green, and smart cities.
Balam is a private equity business that specializes in equity investments in renewable energy generation, specifically solar PV &mini-hydro.
Pearlstone is a Demand Response Aggregator that supports the National Grid to balance the supply and demand for energy.
ATAWEY designs and manufactures turnkey autonomous energy solutions for isolated sites.
FuelSave is a disruptive energy efficiency enhancement company that provides innovative solutions.
The easiest way to optimise energy consumption in public and commercial buildings.
reLi Energy is an innovative technology company that improves the performance of energy storage and batteries to reach their full potential.
Rondo Heat Battery powers industrial processes with renewable electricity, cutting energy costs and eliminating emissions.
UK energy reduction specialists. 3,000+ sites served, 166.5M+ kWh saved. Voltage optimisation, solar PV, KBR and energy monitoring.
OLEDWorks is a manufacturer of OLED light technology for automotive, general lighting, and specialty applications.
VARM is driving the European Household decarbonization by building the infrastructure for insulation.
Eni Plenitude supplies energy for homes and institutions.
Optimize and manage charging stations, batteries, solar and the grid with our (white label) Charging and Energy Management Saas cloud.
Magneto enables efficient cooling and heating without fossil fuels or refrigerants
SulNOx Group provides fuel conditioning processes and products that increase fuel efficiencies and thus reduce emissions.
Advanced Thermovoltaic Systems specializes in the discovery of all temperature heat to power at a megawatt-scale.
The energy efficiency sector is an active area of startup innovation and venture capital investment. Companies in this space are developing new technologies, platforms, and services that address evolving market needs and create new business opportunities.
Energy Efficiency companies raise capital across various funding stages, from early seed rounds to late-stage growth financing. Investor interest in this sector is driven by the size of the addressable market, the pace of technology adoption, and the potential for scalable business models.
The energy efficiency sector is expected to continue evolving as technology advances, market dynamics shift, and new opportunities emerge. Companies that demonstrate strong product-market fit, efficient growth, and clear competitive advantages are well-positioned to attract continued investment.
Here is how funding is distributed among the 412 energy efficiency companies tracked in the VCBacked database.
Companies in the energy efficiency sector often overlap with or complement businesses in adjacent industries. Exploring related verticals can help you discover additional companies, identify partnership opportunities, and understand the broader competitive landscape.
Perfect for: B2B sales teams targeting energy efficiency companies, investors exploring sector opportunities, and service providers looking for funded companies ready to scale.
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