Top 50 Building Energy Retrofit in Europe

Provides end-to-end energy consulting and retrofitting services for residential and commercial properties, focusing on improving energy efficiency and sustainability. By combining building data analysis, tailored ESG strategies, and implementation of measures like insulation, window replacement, and renewable energy systems, it reduces CO₂ emissions, lowers operating costs, and increases property value by up to 30%.

Kestrix utilizes thermal drones and AI-driven computer vision to map and quantify heat loss from buildings, enabling energy retrofit planning, pricing, and verification at a city scale. This technology addresses the challenge of identifying and prioritizing the 100 million homes in Europe that require retrofitting to reduce CO2 emissions from heating and cooling.

Econest acquires energy-inefficient properties and employs retrofitting techniques such as insulation upgrades and HVAC system enhancements to improve energy performance. This process reduces high operational costs and mitigates the environmental impact of outdated building systems, increasing property value within investment portfolios.

Enter provides a free, web‑based platform for German residential energy retrofits that begins with a dena‑certified video audit and creates a digital twin and individualized renovation roadmap (iSFP). Its AI‑driven engine aggregates and compares offers for heat pumps, insulation, windows and other measures from a vetted network of contractors, while automatically preparing BAFA and KfW subsidy applications. The service also coordinates installation, monitors progress, and delivers a transparent side‑by‑side pricing dashboard.

Sero provides a funded retrofit solution that combines private finance and grant funding to help social housing landlords upgrade their properties to meet Net Zero standards. By addressing the issue of energy inefficiency in over 1.6 million social homes, Sero enables landlords to reduce carbon emissions and lower energy costs for residents.

Norm provides a digital platform that assesses the energy efficiency, CO₂ emissions, and renovation costs of buildings through expert-verified analyses and 3D modeling. This solution enables businesses to identify energy renovation potential and create tailored financing options for sustainable real estate projects.

Furbnow provides expert guidance and project management for home energy efficiency upgrades, including insulation, solar installations, and heating systems. By conducting professional surveys and connecting homeowners with vetted installers, Furbnow ensures effective energy improvements that can reduce carbon emissions by up to 2.2 tonnes annually and save homeowners an average of £1,826 on energy bills.

This startup provides net-zero modernization services that utilize solar panels for carbon dioxide-free heat and electricity generation in multi-family housing. By employing industrial prefabrication, modular construction, and efficient energy systems, the company enables property owners to meet tenant energy needs while minimizing environmental impact.

Zurich Soft Robotics develops the Solskin adaptive solar facade, which utilizes solar-tracked photovoltaic panels to optimize energy production and shading based on real-time climate conditions and user preferences. This technology reduces building energy consumption by up to 80%, enhancing occupant comfort while mitigating the impacts of climate change.

VARM specializes in blow-in insulation technology, utilizing eco-friendly materials like cellulose and wood fiber to enhance energy efficiency in residential buildings. By improving thermal performance, their solutions can reduce heating costs by up to 50% while also qualifying homeowners for government subsidies of 20%.

Preflet Energy AI Platform utilizes machine learning to analyze multidimensional data, including smart meter readings and climate information, to generate actionable insights for improving energy efficiency in buildings. This technology enables property managers to reduce energy costs and carbon emissions without the need for significant hardware investments or technical expertise.

Lamarr.AI provides an autonomous platform for building envelope diagnostics using thermal imaging and artificial intelligence to detect thermal defects in real-time. This technology enables rapid identification of energy inefficiencies, facilitating the transition to Net Zero buildings while reducing maintenance costs.

The startup develops specialized drilling technology for the installation of carbon-neutral heating systems in existing homes. By enabling efficient in-home placement with minimal environmental disruption, the company facilitates the transition to renewable energy solutions for homeowners facing traditional installation challenges.

The startup operates an IoT-enabled platform that collects and analyzes building energy data to optimize energy consumption in real estate operations. By providing actionable insights, the platform helps real estate and energy companies reduce carbon emissions and achieve significant energy and cost savings without requiring structural changes.

aedifion offers an AI-based cloud platform that utilizes real-time data analytics to optimize building operations, reducing energy consumption, CO2 emissions, and operating costs by up to 40%. The platform provides actionable insights and autonomous control to enhance efficiency without requiring significant capital investments.

Air Booster transforms metal cladding into a functional heat exchanger that circulates and directs heated air indoors. This technology enhances energy efficiency in buildings by utilizing existing materials to improve indoor climate control.

Soletair Power develops modular direct air capture systems that integrate with existing building ventilation systems to capture carbon dioxide from the atmosphere. This technology enables building owners to reduce their Scope 3 emissions, lower energy costs, and improve indoor air quality while contributing to climate change mitigation.

Optee provides a project management platform tailored for energy renovation professionals, streamlining the planning, execution, and monitoring of energy efficiency projects. It addresses inefficiencies in project coordination and tracking by centralizing workflows, improving collaboration, and ensuring compliance with regulatory standards. The platform enables users to manage timelines, budgets, and resources effectively, reducing delays and optimizing project outcomes.

Enerdrape develops geothermal panels that convert existing underground environments into renewable energy sources for heating and cooling buildings. This technology enables property owners to reduce carbon emissions and enhance energy independence while meeting environmental, social, and governance (ESG) goals.

This startup specializes in the digitalization and automation of drinking water systems and heating networks to enhance energy efficiency in buildings. By implementing advanced monitoring and control technologies, the company enables clients to reduce energy costs and achieve climate neutrality.

Econans provides a data analytics platform that enables banks to assess energy consumption and climate risks in buildings through detailed simulations and automated reporting. By offering personalized recommendations for energy efficiency improvements, the platform helps financial institutions guide property owners in optimizing renovations and achieving sustainability goals.

Arkeon Energy Systems develops SmartPAC, a high-efficiency heat pump solution that replaces traditional boilers with a decarbonized heating and domestic hot water system. This technology reduces energy costs and environmental impact through continuous monitoring and guaranteed performance metrics.

Snugg provides personalized energy efficiency plans that help homeowners identify and implement cost-effective improvements, such as insulation and solar panel installation, to reduce energy bills. The platform also connects users with financing options and trusted local installers, addressing the fragmented nature of the home energy efficiency market.

The startup operates an online platform that automates the transition to renewable energy for large commercial and industrial properties by providing tools for project planning, resource management, and financing. This platform reduces transition risks, enabling property owners to lower energy costs, enhance property value, and achieve energy independence.

This startup develops indoor comfort and energy control systems that utilize historical, real-time, and predictive data to optimize building energy consumption and indoor climate. By employing advanced control algorithms, the company enables real estate operators to enhance operational efficiency, reduce energy costs, and generate revenue through grid balancing.

This startup manufactures 2-in-1 solar roofs that integrate photovoltaic cells to generate electricity while serving as a building's facade. By eliminating the need for traditional photovoltaic modules, these roofs provide a sustainable energy solution that meets the entire energy demand of a building with a reduced carbon footprint.

PowerWindow develops energy-generating light-tinted windows that utilize photovoltaic technology, transparent conductive materials, and energy storage systems to produce electricity. This innovation addresses the need for sustainable energy solutions in buildings, contributing to the decarbonization of real estate.

Metacasa is an all-in-one platform that connects real estate agents, property owners, and qualified professionals to streamline residential energy-efficient renovations. The platform addresses the challenge of managing complex renovation projects by providing detailed planning, transparent cost estimates, and real-time progress tracking, ultimately enhancing property value and sustainability.

Metris provides an all-in-one platform for commercial property owners to manage solar energy projects, featuring real-time asset monitoring, automated billing, and AI-driven proposal generation. This technology streamlines the transition to solar energy, reducing building emissions by up to 70% while enhancing profitability through efficient project management and financing solutions.

The startup develops AI-powered digital twin technology that creates virtual replicas of non-domestic buildings to analyze energy consumption patterns. This technology enables facility managers to identify efficiency improvements, leading to significant cost savings and reduced carbon emissions.

Enerbrain provides a cloud-based IoT solution that optimizes heating, ventilation, and air conditioning (HVAC) systems in buildings to reduce energy consumption by 12-30%. The technology enables real-time monitoring and analysis of energy use, helping facilities minimize waste and lower operational costs.

MClimate develops IoT hardware and software solutions that enhance energy efficiency, monitor air quality, and prevent water loss in buildings. Their technology enables a 15-35% reduction in energy consumption while supporting companies in meeting their ESG goals through real-time data management and control.

Effinigo provides IoT-based solutions for energy-efficient lighting in non-residential buildings through retrofitting existing systems with adaptive lighting controls and LED technology. This approach reduces energy consumption by up to 80%, addressing the significant waste of electricity from outdated lighting practices.

Humboldt Blue utilizes a Phase Change Material (PCM)-based system to store and release thermal energy, achieving up to 80% savings in electricity costs for building cooling. This technology addresses high energy consumption and costs during peak demand by efficiently regulating temperature fluctuations and reducing reliance on traditional HVAC systems.

Fuchs & Eule provides a data-driven operating system for energy-efficient property renovations, offering personalized renovation plans and expert guidance throughout the process. The platform helps homeowners secure substantial government funding for energy-saving measures, significantly reducing energy costs and improving property efficiency.

HAUS is a B2B marketplace offering prefabricated timber-frame systems for net-zero homes, utilizing Modern Methods of Construction (MMC) to achieve wind-tight and watertight structures in just 3-4 days. The platform connects buyers and suppliers with a wide range of sustainable building materials and services, enabling faster and more efficient construction and retrofitting of energy-efficient homes.

Protio is a proptech platform that facilitates property renovation and energy upgrades through a streamlined online process, offering transparent pricing and financing options. The service addresses the inefficiencies in traditional renovation methods, enabling homeowners to complete projects quickly and affordably while enhancing property value and energy efficiency.

LightMirror installs inclined reflective panels on building rooftops to redirect natural sunlight into indoor spaces, enhancing daylight exposure and reducing reliance on artificial lighting and heating. This technology improves energy efficiency and occupant comfort by maximizing solar thermal gain and natural illumination in healthcare facilities.

Scandens is an AI-powered platform that streamlines energy auditing and renovation planning for real estate and construction professionals. The platform helps optimize building and portfolio renovations for cost-effectiveness and sustainability.

nuuEnergy provides tailored heat pump installation services that utilize air, water, and ground-source technologies to deliver energy-efficient heating solutions for residential properties. By replacing traditional fossil fuel systems, the company enables homeowners to significantly reduce their energy costs and carbon footprint while benefiting from available government subsidies.

Maestro provides project management and financing assistance for home energy renovations, utilizing local certified artisans to ensure quality and timely execution. The company addresses the challenges of navigating complex renovation processes and securing financial aid, enabling homeowners to improve energy efficiency and reduce costs effectively.

Eliot provides a sensor-based system that optimizes heating and ventilation in commercial buildings, enabling energy consumption reductions of up to 30%. By integrating with existing infrastructure, the solution adjusts operations based on occupancy, resulting in lower energy costs and improved indoor climate.

xWatts provides an intelligent energy management system that utilizes predictive modeling and real-time data analysis to optimize the performance of energy assets in commercial buildings. By reducing energy waste and operational costs, the platform delivers an average energy savings of over 25% and a fourfold return on investment within the first year.

Zerotude's software utilizes advanced algorithms to create precise models of property portfolios, enabling owners to evaluate and compare renovation measures based on energy efficiency, return on investment, and carbon emissions. This approach allows property owners to make informed decisions on renovations, ensuring optimal allocation of resources for maximum impact.

This startup designs colored solar panels and facade systems that integrate seamlessly into building exteriors, enabling structures to generate more energy than they consume. By facilitating the transition to energy-efficient smart cities, their technology contributes to sustainable urban development and reduces reliance on traditional energy sources.

Reshape Energy provides a platform that offers building owners and tenants a suite of energy services, including energy performance assessments, contract structuring, and ongoing management, to reduce energy costs and enhance property value. The solution targets high energy expenses and sustainability compliance in buildings, facilitating optimized energy usage and long-term financial benefits.

The startup provides customized rooftop data analytics using artificial intelligence to enhance the energy efficiency of buildings. By integrating commercially available data from multiple aerospace providers, it enables property owners to optimize energy consumption and reduce operational costs.

Lexton Group develops energy-positive real estate by integrating proprietary climate technology and advanced energy-generating materials. Their buildings are self-sufficient, optimizing energy consumption and feeding surplus power back into the grid, while also utilizing carbon capture technology to reduce emissions.

Enercool offers advanced cool roof coatings that reflect solar radiation to significantly reduce building heat gain and cooling energy consumption. These water-based, low-VOC coatings are formulated with silica aerogels and recycled materials for enhanced thermal insulation and environmental responsibility.

dnergy offers the dEEP program, which utilizes AI analytics and dedicated energy management to enhance energy efficiency and ensure compliance for asset and facility managers in commercial real estate. By systematically mapping current energy usage and implementing targeted improvements, dnergy helps reduce CO2 emissions and lower energy costs across building portfolios.