Rockstart

Rockstart is an accelerator based in Amsterdam, Netherlands, founded in 2011. It specializes in early-stage investments in startups across various sectors, including energy, health, agrifood, and emerging technologies. With a strong focus on supporting purpose-driven founders, Rockstart not only provides capital but also offers coaching, mentorship, and access to markets, expertise, and a community of co-investors and partners. The company has invested in over 350 startups, achieving an alumni valuation exceeding $1.7 billion. Rockstart operates additional offices in Copenhagen, Denmark, and Bogotá, Colombia, and emphasizes impact-driven initiatives, including programs designed to assist entrepreneurs in Nepal. The firm's notable exits include companies like Wercker, Bouw7, and 3D Hubs, reflecting its commitment to fostering scalable innovations that drive positive change globally.

Francisca Sousa Guedes

Investment Manager

Max ter Horst

Managing Partner, Energy

Suzanne Kroeze

Investment Manager, Emerging Tech

Gem Kua

Investment Manager, Energy

Sam van der Linden

Investment Analyst

Philippe Schuit

Investment Director

Frederik Ploug Søgaard

Senior Investment Associate

Mick Valentin

Investment Analyst

Past deals in Energy

GEHECO

Seed Round in 2024
GEHECO is a technology company specializing in the development of drilling tools for renewable energy applications, specifically focusing on the efficient installation of water-heat pumps in existing residential structures. The company aims to facilitate the transition to carbon-neutral heating methods by addressing the challenge of well drilling, a traditionally complex and environmentally impactful process. GEHECO's innovative, in-home installation-friendly designs aim to enhance accessibility and reduce environmental impact, thereby overcoming common barriers to the adoption of sustainable heating solutions.

Hexwise

Pre Seed Round in 2024
Hexwise is a company that specializes in optimizing the performance and maintenance of air-cooled heat exchangers to enhance energy efficiency across various industrial applications. The company's innovative heat exchanger optimization software is designed to reduce energy wastage and inefficiencies, particularly in sectors such as thermal power plants, gas transport networks, and chemical facilities. By providing a monitoring system that integrates with existing heat exchangers, Hexwise enables maintenance and asset managers to gain valuable insights and recommendations. This approach helps businesses improve their energy efficiency and operational effectiveness.

Eddy Grid

Pre Seed Round in 2024
Eddy Grid is an innovative energy storage company focused on providing sustainable energy solutions. The company has developed a distributed energy storage platform that offers battery systems and energy management services tailored for businesses. This platform enables organizations to save on energy costs, enhance reliability, and increase their access to renewable energy sources. Eddy Grid's approach aims to support the transition to cleaner energy by optimizing energy use and facilitating the integration of sustainable practices within the commercial sector.

Circadian Technologies GmbH

Seed Round in 2023
Circadian Technologies is a developer of a decentralized energy management platform aimed at accelerating the energy transition in frontier markets. The company offers a Software-as-a-Service (SaaS) solution that enables solar developers and energy service companies to optimize their operations and enhance profitability. By capturing data from multiple sources at a high frequency, Circadian's platform performs edge calculations and integrates this information into the cloud, providing clients with actionable insights. The company's proprietary Internet-of-Things hardware complements the software, delivering an end-to-end solution that improves the design, financing, operation, and maintenance of decentralized renewable energy systems for commercial and industrial sites.

Helio

Seed Round in 2023
Helio is a technology company focused on optimizing cloud computing to reduce carbon emissions and improve efficiency. Its platform utilizes an application program interface that matches workloads with available computing resources, leveraging containerized workloads and cloud-native principles. This approach allows Helio to execute applications such as 3D rendering and machine learning in a carbon-aware manner, ensuring minimal environmental impact while maintaining cost-effectiveness and scalability. By providing secure technical layers between users, Helio enables businesses to efficiently manage their large-scale workloads and enhance operational speed, addressing the significant energy consumption and resource waste prevalent in traditional data centers.

Dexter Energy

Series B in 2023
Dexter Energy Services B.V., established in 2016 and headquartered in Amsterdam, Netherlands, specializes in cloud-based energy management systems. The company offers electricity forecasting and data management services, primarily serving energy utilities and retailers. Its platform provides load, price, and imbalance forecasting, optimization services for energy trading strategies, energy data analytics, and simulations for asset and energy trading decisions. Dexter's solutions leverage artificial intelligence and cloud technology, integrating diverse external data sources and customer data to deliver accurate forecasts, thereby enhancing efficiency and reducing costs.

Viezo

Venture Round in 2023
Viezo is a technology start-up focused on energy harvesting solutions that convert vibrations into electricity. Its innovative technology captures ambient vibrations to generate power for wireless Internet of Things devices, significantly extending their operational lifespan while eliminating the need for maintenance. This approach offers a non-toxic and environmentally friendly alternative to traditional battery power, aligning with sustainable practices. By leveraging energy from the surrounding environment, Viezo aims to enhance the efficiency and longevity of connected devices.

Circadian Technologies GmbH

Pre Seed Round in 2023
Circadian Technologies is a developer of a decentralized energy management platform aimed at accelerating the energy transition in frontier markets. The company offers a Software-as-a-Service (SaaS) solution that enables solar developers and energy service companies to optimize their operations and enhance profitability. By capturing data from multiple sources at a high frequency, Circadian's platform performs edge calculations and integrates this information into the cloud, providing clients with actionable insights. The company's proprietary Internet-of-Things hardware complements the software, delivering an end-to-end solution that improves the design, financing, operation, and maintenance of decentralized renewable energy systems for commercial and industrial sites.

Oktogrid

Seed Round in 2022
Oktogrid specializes in the digitalization of transformers, offering technology that connects and monitors these critical components of the energy grid. Their innovative systems enable electricity providers to equip any transformer with a digital interface in under ten minutes without the need for tools. By providing non-invasive access to real-time transformer and grid performance data, Oktogrid empowers utilities to monitor conditions, forecast issues, and respond to local congestions effectively. This approach not only enhances asset management but also transforms energy challenges into data-driven opportunities. As a result, Oktogrid helps electricity transmission and distribution companies adapt to the evolving energy landscape, facilitating informed decision-making for a cleaner and more efficient future.

Sympower

Venture Round in 2022
Sympower is a developer of sustainable energy solutions focused on enhancing the flexibility of energy users to support a balanced electricity grid. The company partners with industry leaders to facilitate the transition to a net-zero future by unlocking revenue streams and providing stability in energy markets. Utilizing advanced, automated software, Sympower enables clients to temporarily adjust the power of their systems and processes in response to grid imbalances. Their innovative approach aggregates electrical appliances and integrates them into a smart system, allowing for the shifting of energy usage to more economical times. This empowers customers to leverage their existing flexibility, contributing to a fully renewable energy grid while enhancing the value of their energy assets.

Sympheny

Venture Round in 2022
Sympheny is a provider of software-as-a-service solutions and energy planning services designed to assist planners and managers of buildings and urban areas in facilitating the global energy transition. The company leverages a unique combination of digital twin technology and advanced optimization algorithms to enable the efficient design of sector-coupled energy systems at various scales, from individual buildings to entire neighborhoods and cities. By streamlining analyses that traditionally required days into mere hours, Sympheny enhances energy performance outcomes while minimizing risks associated with investment decisions. This efficiency not only supports sustainability objectives but also fosters greater stakeholder engagement and reduces resource expenditures throughout the planning process.

Hydrologiq

Seed Round in 2022
Hydrologiq is a developer of a hydrogen fuel cell generating platform that facilitates the deployment of hydrogen-powered systems for off-grid electricity generation. The company addresses the challenges associated with the complex hydrogen supply chain by integrating hardware, fuel, and software into a cohesive solution. This approach simplifies the transition from diesel generators to clean hydrogen alternatives, enabling users to access reliable, low-risk electricity while contributing to decarbonization efforts. Hydrologiq offers a fully managed service that alleviates customer concerns and streamlines market access for hydrogen solutions. By enhancing reliability and standardization in the hydrogen supply chain, Hydrologiq accelerates the adoption of hydrogen-powered machinery, making it easier, faster, and more cost-effective for companies to transition to sustainable energy sources.

TechnologyCatalogue.com

Seed Round in 2021
TechnologyCatalogue.com is a technology deployment platform focused on accelerating the energy transition through innovation. The company assists organizations in the energy sector by providing a comprehensive resource for identifying and selecting proven technologies that can reduce emissions, enhance safety, and lower costs. Its platform offers valuable data, insights, and functionalities accessible via company subscriptions, enabling clients to easily deploy and replicate technologies successfully utilized by industry peers. By streamlining the selection process, TechnologyCatalogue.com empowers suppliers and operators to enhance their performance and contribute effectively to the energy transition. Renowned companies in the sector, such as Aramco, Aker BP, and Shell, utilize this platform to meet their technological needs.

Oktogrid

Pre Seed Round in 2021
Oktogrid specializes in the digitalization of transformers, offering technology that connects and monitors these critical components of the energy grid. Their innovative systems enable electricity providers to equip any transformer with a digital interface in under ten minutes without the need for tools. By providing non-invasive access to real-time transformer and grid performance data, Oktogrid empowers utilities to monitor conditions, forecast issues, and respond to local congestions effectively. This approach not only enhances asset management but also transforms energy challenges into data-driven opportunities. As a result, Oktogrid helps electricity transmission and distribution companies adapt to the evolving energy landscape, facilitating informed decision-making for a cleaner and more efficient future.

eDRV

Convertible Note in 2020
eDRV is an electric vehicle (EV) charging API platform that specializes in integrating EV charging solutions into existing business systems. The company provides software that enables enterprises and software developers to manage charging point operations efficiently. Its APIs facilitate various functionalities, such as enabling workplace charging for employees and allowing retail customers to start and stop charging sessions using their existing credentials. Additionally, eDRV's software supports a wide range of chargers from both local and international suppliers, utilizing open charging point protocols to streamline operations. By offering a centralized dashboard, eDRV helps customers access a broader network of charging stations, thereby enhancing the overall EV charging experience.

Helio

Convertible Note in 2020
Helio is a technology company focused on optimizing cloud computing to reduce carbon emissions and improve efficiency. Its platform utilizes an application program interface that matches workloads with available computing resources, leveraging containerized workloads and cloud-native principles. This approach allows Helio to execute applications such as 3D rendering and machine learning in a carbon-aware manner, ensuring minimal environmental impact while maintaining cost-effectiveness and scalability. By providing secure technical layers between users, Helio enables businesses to efficiently manage their large-scale workloads and enhance operational speed, addressing the significant energy consumption and resource waste prevalent in traditional data centers.

Helio

Pre Seed Round in 2020
Helio is a technology company focused on optimizing cloud computing to reduce carbon emissions and improve efficiency. Its platform utilizes an application program interface that matches workloads with available computing resources, leveraging containerized workloads and cloud-native principles. This approach allows Helio to execute applications such as 3D rendering and machine learning in a carbon-aware manner, ensuring minimal environmental impact while maintaining cost-effectiveness and scalability. By providing secure technical layers between users, Helio enables businesses to efficiently manage their large-scale workloads and enhance operational speed, addressing the significant energy consumption and resource waste prevalent in traditional data centers.

AMMP

Pre Seed Round in 2019
AMMP Technologies B.V., founded in 2018 and based in Amsterdam, develops operational software solutions tailored for the off-grid energy market. The company specializes in remote monitoring and management technologies for distributed energy systems, including off-grid and mini-grid assets. Its software as a service platform facilitates data-driven operational excellence for energy users, service companies, and renewable energy system vendors, thereby enhancing system uptime and achieving significant operational expenditure savings. With a portfolio that has expanded to nearly 1,000 systems globally, AMMP empowers energy system operators to reduce maintenance costs and protect off-grid investments. The founding team has prior experience in successfully deploying and managing mini-grids across Sub-Saharan Africa.

Hero Balancer

Seed Round in 2017
Hero Balancer B.V. is a Netherlands-based company founded in 2015 that specializes in developing a cloud-based smart application aimed at optimizing heating systems within various built environments, including offices, schools, healthcare facilities, and real estate. The company's innovative platform monitors existing heating installations and identifies discrepancies between heat demand and supply. By integrating with building management systems, Hero Balancer utilizes weather data and predictive analytics to guide these systems in adjusting heat production, ultimately enhancing user comfort while simultaneously reducing energy consumption. The company's technology supports the integration of renewable energy sources, making it a valuable solution for energy efficiency in modern buildings.

Efficiator

Seed Round in 2017
Efficiator is a company focused on assisting major organizations in enhancing customer growth through innovative software solutions that optimize energy expenditures. It has developed an online platform that provides valuable insights into energy consumption, utilizing reliable algorithms to deliver tailored recommendations for products and services suited to individual buildings. This approach not only helps customers reduce their energy bills but also promotes environmentally friendly and sustainable home retrofitting options. Efficiator's commitment to improving energy efficiency positions it as a significant player in the energy management sector.

eGEO

Seed Round in 2016
eGEO LLC, based in Boston, Massachusetts, specializes in the research and development of embedded systems tailored for various applications, including robotics, the Internet of Things, systems control, energy efficiency, and home automation. As a subsidiary of eGEO Tech SAS, the company focuses on creating innovative solutions such as low-cost Ultra-SmartGrid terminals. These terminals are designed to stabilize local grids and provide real-time metrics for industries, utilities, and grid operators, addressing the challenges posed by the increasing demand from electric vehicles and the complexities of distributed micro-generation. By enhancing energy efficiency and monitoring capabilities, eGEO aims to contribute significantly to the evolution of smart electrical grids.

Sympower

Seed Round in 2016
Sympower is a developer of sustainable energy solutions focused on enhancing the flexibility of energy users to support a balanced electricity grid. The company partners with industry leaders to facilitate the transition to a net-zero future by unlocking revenue streams and providing stability in energy markets. Utilizing advanced, automated software, Sympower enables clients to temporarily adjust the power of their systems and processes in response to grid imbalances. Their innovative approach aggregates electrical appliances and integrates them into a smart system, allowing for the shifting of energy usage to more economical times. This empowers customers to leverage their existing flexibility, contributing to a fully renewable energy grid while enhancing the value of their energy assets.

Flowbox

Seed Round in 2016
FlowBox optimizes energy costs and assets’ utilization for medium-sized manufacturing companies by providing cloud aggregation of process control systems, into a single smart-control function. FlowBox has been developed with the aim to become an integral part of the booming trend of automation and data exchange in the manufacturing sector (the so-called Industry 4.0), with focus on medium-sized manufacturing companies. To them, FlowBox serves as a centralized management system for all of their secondary production processes. By aggregation of all of the energy-related processes and devices into a single smart-control environment, FlowBox centrally and constantly optimizes their individual functions, as well as their mutual coexistence and cooperation. By such autonomous and real-time management, FlowBox provides an ultimate efficiency in both the related processes and the overall energy consumption, leading up to 40% savings from the total energy bill, as well as the most efficient assets’ utilization.

Newatt

Seed Round in 2016
Newatt is a company based in Belo Horizonte, Brazil, specializing in real-time energy cost management systems for retail store chains and supermarkets. By leveraging artificial intelligence, big data, and the Internet of Things, Newatt develops solutions that monitor electricity consumption and provide actionable insights to help clients reduce their energy usage efficiently. The platform is designed to assist medium and large retailers in managing their energy consumption more effectively, ultimately leading to lower costs and improved sustainability. Focused on the Latin American market, Newatt aims to enhance energy efficiency and support retailers in achieving their energy management goals.

Entelligo

Seed Round in 2015
Entelligo is a B2B SaaS company focused on the renewable energy sector, providing software solutions for manufacturers, installers, and sellers of energy products such as photovoltaics, energy storage systems, LEDs, solar thermal systems, heat pumps, and boilers. The company offers a mobile application and an integrated cloud platform that streamline the sales process for renewable energy professionals. By utilizing simple questions, precise simulations, and financial analyses, Entelligo generates ready-to-sign commercial proposals, effectively reducing the sales cycle and enhancing conversion rates and operational efficiency for its clients.

Viridom

Seed Round in 2014
Viridom is a cloud-based platform for energy management in Nanogrids that puts nanogrid electricity users in real-time control of their production, consumption, and storage, while at the same time it facilitates true automated demand-side management and customer engagement for the utility companies. At the core of VIRIDOM is an analytics engine handling and processing the energy data, and a set of algorithms for cost and energy usage optimization. Beyond providing visually-appealing information and actionable energy-efficient recommendations to nanogrid users, Viridom also offers rich and technically meaningful demand-side information and user activity patterns to power utilities, and sets a foundation for insight and analysis to help them make more informed business decisions such as infrastrure planning, grid optimization, personalized pricing schemes and predictive maintenance, and execute quickly.

Bleeve

Seed Round in 2014
Bleeve provides a social internet platform that connects people on the topic of saving and producing energy at home. The company is based in Amsterdam, the Netherlands.

Capacity Energy Storage

Seed Round in 2014
Capacity Energy Storage (CES) is a young company driven by the urgent need to accelerate the reduction of CO2 emissions beyond what top-down policies achieve. Based in the Netherlands, CES aims to facilitate bottom-up forces to expedite the energy transition across Europe. The company provides energy services focused on flexibility management, offering flexible power units that function as virtual batteries. These units can both deliver and absorb power, addressing dynamic power needs. CES is actively involved in developing new business models tailored for a post-2020 reality, characterized by dynamic pricing, diminishing subsidies, and the absence of netting mechanisms.

miniPower

Seed Round in 2014
miniPower BV is a company based in the Netherlands that specializes in the replacement and exploitation of used wind turbines. It focuses on optimizing these turbines by continuously improving existing components to enhance their efficiency and performance. The company targets the placement of used turbines primarily in Poland, Croatia, Greece, and Turkey, contributing to the sustainable energy sector by extending the lifecycle of wind energy technology.

Hyko

Seed Round in 2014
Hyko is a company that develops innovative parenting tools aimed at fostering energy-conscious behaviors in both children and adults. Its flagship product features a glowing polar bear mobile application designed to engage kids while promoting energy-saving practices. The company also offers a connected lamp equipped with LED technology that not only ensures safety for children by controlling heat flow but also aids in establishing healthy sleeping routines. Through these products, Hyko seeks to enhance family lifestyles by instilling a sense of responsibility towards energy consumption and environmental protection.

QwikSense

Seed Round in 2013
QwikSense is a company based in Utrecht, Netherlands, that specializes in providing businesses with insights into their work environments through actionable sensor analytics. Founded in April 2014, QwikSense measures various environmental factors, including temperature, humidity, CO2 levels, gas, electricity usage, occupancy, dust, illuminance, noise, and air pressure. By analyzing these metrics, the company helps organizations create healthier and more productive workspaces while also promoting energy efficiency and reducing carbon footprints. QwikSense aims to support businesses in managing energy costs and fostering sustainable work environments.
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