PDENH

PDENH is an investment management firm based in Amsterdam, Noord-Holland, that focuses on venture capital and private equity investments. Founded in 2014, the firm aims to identify and support innovative companies and projects, providing the necessary capital and expertise to foster growth and development in various sectors.

Joost de Waard

Investment Manager

38 past transactions

Thorizon

Series A in 2025
Thorizon is a deep-tech startup spun off from the Dutch Nuclear Research Institute, with offices in Amsterdam and Lyon. It is developing thorium molten salt reactor technology designed to provide a responsible, carbon-free energy source by using long-lived nuclear waste and thorium as fuel, with a focus on safety and circularity. The company aims to deliver a scalable demonstration and to begin constructing a first-of-a-kind reactor by 2030, named Thorizon One. It collaborates with industry leaders including Orano, Tractebel, and EDF and has been recognized as a laureate in the France 2030 program for advanced nuclear projects.

Sympower

Series B in 2024
Sympower provides software-enabled flexibility services to support a renewable, stable electricity grid. Working with leading industry players, it aggregates appliances and industrial assets and uses automated, non-intrusive software to shift energy usage to cheaper hours and to balance supply and demand in real time. The company helps customers unlock new revenue streams and maximise the value of their energy assets by enabling flexible operation across energy markets, enhancing grid reliability and accelerating the transition to a fully renewable system.

EST-Floattech

Venture Round in 2024
EST-Floattech develops and manufactures intelligent energy storage systems based on lithium polymer batteries, primarily serving the maritime industry. Founded in 2009, the company is headquartered in Medemblik, the Netherlands.

E-magy

Series A in 2023
E-magy is an advanced materials company based near Amsterdam, The Netherlands, specializing in the supply of nano-porous silicon for high-energy lithium-ion batteries. The company's innovative silicon product offers a 40% increase in energy density and is designed to be compatible with existing Gigafactory production lines, allowing for scalable manufacturing. E-magy employs a team of specialists with over 20 years of experience in silicon crystallization, focusing on enhancing battery performance for automotive and battery manufacturers. By utilizing an efficient silicon crystallization process along with standard post-processing steps, E-magy aims to deliver batteries that support long-range capabilities and fast charging at competitive costs, ultimately contributing to the advancement of clean, electrically-powered mobility.

Dexter Energy Services

Series B in 2023
Founded in Amsterdam in 2016, Dexter Energy Services develops a cloud-based energy management system. It offers electricity load, price, and imbalance forecasting services, optimization strategies for energy trading, data analytics, business case calculations, and asset trading simulations. Serving energy utilities and retailers, the platform increases efficiency and lowers costs by combining AI, cloud technology, and diverse external data sources.

Fairphone

Venture Round in 2023
Fairphone is a company based in Amsterdam, established in 2010 by Bas van Abel, that focuses on creating ethically sourced smartphones. These devices are designed for basic functionalities such as calling, texting, and internet browsing. Fairphone emphasizes a completely transparent supply chain, ensuring that the materials used in their smartphones are sourced responsibly. This approach allows consumers to contribute positively to social and environmental outcomes throughout the entire life cycle of the phone, from production to disposal.

Triple Solar

Venture Round in 2023
Triple Solar designs and manufactures photovoltaic-thermal systems that supply electricity, heating, hot water, and cooling for homes and other buildings in a sustainable manner, reducing or eliminating natural gas use. The system pairs PVT panels with a PVT heat pump, with the back of the panel serving as a thermal exchanger that extracts heat from ambient air, enabling integrated solar heating, hot water, cooling, and electricity generation for the residence, often without an outdoor unit.

Cargoroo

Seed Round in 2022
Cargoroo offers a smart electric cargo bike rental platform, making sustainable urban transport accessible and affordable for individuals and small businesses. Users can find, choose, and reserve electric cargo bikes for transporting goods, groceries, parcels, or passengers.

Sympower

Series B in 2022
Sympower provides software-enabled flexibility services to support a renewable, stable electricity grid. Working with leading industry players, it aggregates appliances and industrial assets and uses automated, non-intrusive software to shift energy usage to cheaper hours and to balance supply and demand in real time. The company helps customers unlock new revenue streams and maximise the value of their energy assets by enabling flexible operation across energy markets, enhancing grid reliability and accelerating the transition to a fully renewable system.

ChainCraft

Series C in 2022
ChainCraft is a company focused on mixed culture fermentation technology aimed at producing sustainable bio-based chemicals for the chemical, food, and feed industries. Their innovative approach utilizes waste mitigation services to convert low-grade organic residues, such as food waste, agricultural byproducts, and the organic fraction of municipal solid waste, into high-value fatty acids. By transforming biobased organic waste streams into valuable chemical building blocks, ChainCraft offers a competitive alternative to traditional industry-produced chemicals, promoting environmental sustainability and resource efficiency in the chemical industry.

Thorizon

Venture Round in 2022
Thorizon is a deep-tech startup spun off from the Dutch Nuclear Research Institute, with offices in Amsterdam and Lyon. It is developing thorium molten salt reactor technology designed to provide a responsible, carbon-free energy source by using long-lived nuclear waste and thorium as fuel, with a focus on safety and circularity. The company aims to deliver a scalable demonstration and to begin constructing a first-of-a-kind reactor by 2030, named Thorizon One. It collaborates with industry leaders including Orano, Tractebel, and EDF and has been recognized as a laureate in the France 2030 program for advanced nuclear projects.

Sympower

Venture Round in 2022
Sympower provides software-enabled flexibility services to support a renewable, stable electricity grid. Working with leading industry players, it aggregates appliances and industrial assets and uses automated, non-intrusive software to shift energy usage to cheaper hours and to balance supply and demand in real time. The company helps customers unlock new revenue streams and maximise the value of their energy assets by enabling flexible operation across energy markets, enhancing grid reliability and accelerating the transition to a fully renewable system.

30MHz

Series B in 2021
30MHz develops sensory technologies and data platforms for environmental and agricultural applications. The company created ZENSIE, a sensory system that provides enhanced insight into surroundings to unlock operational potential and improve efficiency, reducing overhead and increasing productivity. It also offers an agricultural sensory data platform that provides real-time remote crop monitoring on any device, with full context, historical insights, and live alerts to support timely decisions, enabling farmers to manage crops more effectively, boost productivity, and advance sustainability.

The Next Closet

Venture Round in 2021
The Next Closet is an online peer-to-peer marketplace based in the Netherlands that specializes in secondhand designer clothing and accessories. Positioned as a sustainable alternative in the fashion industry, the company allows users to sell their unused designer pieces while providing an opportunity for others to purchase unique items at competitive prices. By facilitating this exchange, The Next Closet aims to promote sustainability and reduce waste in the fashion sector, making a lasting impact on consumer habits. The platform is designed to be user-friendly, enabling individuals to easily manage their own "closets" and contribute to a circular fashion economy.

Triple Solar

Venture Round in 2021
Triple Solar designs and manufactures photovoltaic-thermal systems that supply electricity, heating, hot water, and cooling for homes and other buildings in a sustainable manner, reducing or eliminating natural gas use. The system pairs PVT panels with a PVT heat pump, with the back of the panel serving as a thermal exchanger that extracts heat from ambient air, enabling integrated solar heating, hot water, cooling, and electricity generation for the residence, often without an outdoor unit.

MX3D

Venture Round in 2021
MX3D specializes in developing and licensing large-scale robotic 3D printing technology for metals. They offer a turnkey solution that integrates sensors, software, robots, and welding equipment. Their end-to-end software stack, MetalXL, supports WAAM (Wire Arc Additive Manufacturing) and enables users to print large metal parts on-demand.

Sympower

Series B in 2021
Sympower provides software-enabled flexibility services to support a renewable, stable electricity grid. Working with leading industry players, it aggregates appliances and industrial assets and uses automated, non-intrusive software to shift energy usage to cheaper hours and to balance supply and demand in real time. The company helps customers unlock new revenue streams and maximise the value of their energy assets by enabling flexible operation across energy markets, enhancing grid reliability and accelerating the transition to a fully renewable system.

Dexter Energy Services

Series A in 2021
Founded in Amsterdam in 2016, Dexter Energy Services develops a cloud-based energy management system. It offers electricity load, price, and imbalance forecasting services, optimization strategies for energy trading, data analytics, business case calculations, and asset trading simulations. Serving energy utilities and retailers, the platform increases efficiency and lowers costs by combining AI, cloud technology, and diverse external data sources.

E-magy

Venture Round in 2021
E-magy is an advanced materials company based near Amsterdam, The Netherlands, specializing in the supply of nano-porous silicon for high-energy lithium-ion batteries. The company's innovative silicon product offers a 40% increase in energy density and is designed to be compatible with existing Gigafactory production lines, allowing for scalable manufacturing. E-magy employs a team of specialists with over 20 years of experience in silicon crystallization, focusing on enhancing battery performance for automotive and battery manufacturers. By utilizing an efficient silicon crystallization process along with standard post-processing steps, E-magy aims to deliver batteries that support long-range capabilities and fast charging at competitive costs, ultimately contributing to the advancement of clean, electrically-powered mobility.

S4 Energy

Debt Financing in 2020
S4 Energy is a Netherlands-based company that specializes in developing and delivering customized energy storage solutions aimed at stabilizing the supply and demand of renewable energy. Founded in 2010 and headquartered in Rotterdam, S4 Energy collaborates with grid operators, energy consumers, and renewable energy sources. The company offers a range of services, including frequency containment reserve services for the Dutch grid operator TenneT TSO, and it manufactures KINEXT units in Almelo. S4 Energy provides comprehensive solutions encompassing design, construction, and maintenance, along with software that analyzes energy flows for optimized management. Its hardware offerings include various storage technologies such as kinetic storage (flywheels), chemical storage (batteries), electrolytic storage (capacitors), and power conversion systems. By integrating innovative technologies with economic insights, S4 Energy focuses on delivering reliable and cost-effective energy solutions for energy generation, transport, distribution, industrial consumers, and public infrastructure.

E-magy

Venture Round in 2020
E-magy is an advanced materials company based near Amsterdam, The Netherlands, specializing in the supply of nano-porous silicon for high-energy lithium-ion batteries. The company's innovative silicon product offers a 40% increase in energy density and is designed to be compatible with existing Gigafactory production lines, allowing for scalable manufacturing. E-magy employs a team of specialists with over 20 years of experience in silicon crystallization, focusing on enhancing battery performance for automotive and battery manufacturers. By utilizing an efficient silicon crystallization process along with standard post-processing steps, E-magy aims to deliver batteries that support long-range capabilities and fast charging at competitive costs, ultimately contributing to the advancement of clean, electrically-powered mobility.

Sympower

Series A in 2019
Sympower provides software-enabled flexibility services to support a renewable, stable electricity grid. Working with leading industry players, it aggregates appliances and industrial assets and uses automated, non-intrusive software to shift energy usage to cheaper hours and to balance supply and demand in real time. The company helps customers unlock new revenue streams and maximise the value of their energy assets by enabling flexible operation across energy markets, enhancing grid reliability and accelerating the transition to a fully renewable system.

Dexter Energy Services

Seed Round in 2019
Founded in Amsterdam in 2016, Dexter Energy Services develops a cloud-based energy management system. It offers electricity load, price, and imbalance forecasting services, optimization strategies for energy trading, data analytics, business case calculations, and asset trading simulations. Serving energy utilities and retailers, the platform increases efficiency and lowers costs by combining AI, cloud technology, and diverse external data sources.

Tankwell

Venture Round in 2019
Tankwell offers tank containers, which are the solution for making the liquid logistics sector more sustainable and efficient. They provide the development and production of lightweight composite tank containers for the bulk logistics of liquids.

Asperitas

Venture Round in 2019
Asperitas is a clean-tech company that aims to make data centers more sustainable by offering Immersed Computing, a complete liquid immersion cooling solution that integrates cooling with power and network components. Since 2014 it has validated and refined Immersed Computing as an integrated approach focused on practical design and engineering. The technology improves cooling efficiency and reliability, avoids heat shutdowns, and helps data centers reduce energy use and emissions.

MUD Jeans

Venture Round in 2019
MUD Jeans is a manufacturer of denim-based clothing that focuses on sustainable fashion. The company offers a range of products, including jeans, shirts, bags, shorts, and jackets, all made from natural materials, as well as organic and recycled cotton. MUD Jeans operates an online marketplace that features a unique leasing model, allowing customers to rent jeans and later trade them for a new pair. This circular design approach promotes sustainability by encouraging the reuse and recycling of materials, enabling consumers to make environmentally conscious choices in their clothing purchases.

MX3D

Venture Round in 2019
MX3D specializes in developing and licensing large-scale robotic 3D printing technology for metals. They offer a turnkey solution that integrates sensors, software, robots, and welding equipment. Their end-to-end software stack, MetalXL, supports WAAM (Wire Arc Additive Manufacturing) and enables users to print large metal parts on-demand.

EST-Floattech

Venture Round in 2019
EST-Floattech develops and manufactures intelligent energy storage systems based on lithium polymer batteries, primarily serving the maritime industry. Founded in 2009, the company is headquartered in Medemblik, the Netherlands.

CoVadem

Seed Round in 2018
CoVadem is a technology company that specializes in depth measurement and forecasting for inland shipping. By connecting individual sensors and devices, CoVadem transforms isolated data into valuable information that enhances business and infrastructure decisions. Its platform collects data from inland navigation vessels to accurately map current and anticipated water depths on shipping routes. This innovative approach provides the inland waterways transport industry with essential insights into performance and river behavior, ultimately supporting improved vessel development and operational efficiency. Through the application of collaborative big data principles, CoVadem offers a competitive advantage to ship owners and operators, facilitating enhanced decision-making in the sector.

Fairphone

Venture Round in 2018
Fairphone is a company based in Amsterdam, established in 2010 by Bas van Abel, that focuses on creating ethically sourced smartphones. These devices are designed for basic functionalities such as calling, texting, and internet browsing. Fairphone emphasizes a completely transparent supply chain, ensuring that the materials used in their smartphones are sourced responsibly. This approach allows consumers to contribute positively to social and environmental outcomes throughout the entire life cycle of the phone, from production to disposal.

Volgroen

Venture Round in 2018
Founded in 2011, Volgroen specializes in providing financial solutions for businesses aiming to reduce energy consumption. It facilitates investments in energy-saving technologies such as LED lighting and solar panels.

The Next Closet

Funding Round in 2018
The Next Closet is an online peer-to-peer marketplace based in the Netherlands that specializes in secondhand designer clothing and accessories. Positioned as a sustainable alternative in the fashion industry, the company allows users to sell their unused designer pieces while providing an opportunity for others to purchase unique items at competitive prices. By facilitating this exchange, The Next Closet aims to promote sustainability and reduce waste in the fashion sector, making a lasting impact on consumer habits. The platform is designed to be user-friendly, enabling individuals to easily manage their own "closets" and contribute to a circular fashion economy.

Brouwerij de 7 Deugden

Debt Financing in 2017
Brouwerij de 7 Deugden is a brewery located in the west of Amsterdam, specializing in the production of beers infused with herbs and spices. The brewery focuses on creating customized beers using biological raw materials, ensuring a unique flavor profile that highlights the natural tastes of the ingredients. Additionally, Brouwerij de 7 Deugden features a tasting room that provides an inclusive environment for individuals who may find regular employment challenging. This initiative not only enhances the customer experience for beer enthusiasts but also promotes social responsibility by supporting those in need of alternative work opportunities.

ChainCraft

Series B in 2017
ChainCraft is a company focused on mixed culture fermentation technology aimed at producing sustainable bio-based chemicals for the chemical, food, and feed industries. Their innovative approach utilizes waste mitigation services to convert low-grade organic residues, such as food waste, agricultural byproducts, and the organic fraction of municipal solid waste, into high-value fatty acids. By transforming biobased organic waste streams into valuable chemical building blocks, ChainCraft offers a competitive alternative to traditional industry-produced chemicals, promoting environmental sustainability and resource efficiency in the chemical industry.

B4Energy

Seed Round in 2016
B4Energy is driving a company in the field of green gas production, based on fermentation of biomass.

Ecorus

Seed Round in 2015
Ecorus is a company specializing in solar energy projects, focusing on the development, installation, and maintenance of solar panels for various applications, including residential roofs and solar parks. It manages the entire process for its clients, ensuring a seamless transition to eco-friendly energy sources. By designing and operating solar energy systems, Ecorus enables businesses and homeowners to adopt sustainable and efficient energy solutions, contributing to a cleaner environment. The company's commitment to renewable energy positions it as a key player in the solar industry.

MX3D

MX3D specializes in developing and licensing large-scale robotic 3D printing technology for metals. They offer a turnkey solution that integrates sensors, software, robots, and welding equipment. Their end-to-end software stack, MetalXL, supports WAAM (Wire Arc Additive Manufacturing) and enables users to print large metal parts on-demand.
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