PDENH fund

Sustainable investing in North Holland

The Participatiefonds Duurzame Economie Noord-Holland (PDENH) is an investment fund of the province of Noord-Holland. Since its establishment in 2014, the fund has invested more than €70 million in companies that contribute to the energy transition, circular economy and sustainable mobility. Since 2023, PDENH has been a closed-end fund and focuses on follow-up investments in existing portfolio companies, the management of outstanding loans and the successful phasing out of participations in sustainable growth companies.

PDENH: catalyst for sustainable economic growth in North Holland

How does a fund such as the Participation Fund for Sustainable Economy North Holland contribute?
(PDENH), which has been part of ROM InWest since 2024, contributes to the success of
innovative and socially oriented companies? Leendert van Waart and
Anthony Viellevoije has a clear answer: have the courage to start early
investing, persevering when things get tough and making tough choices at the same time
when needed. And finally, know when to pass the baton.

With what money
are we investing?

Since September 2023, PDENH is a closed-end fund that focuses on follow-on investments in existing portfolio companies.

Fund management

Since April 2024, the fund management of PDENH has been transferred to ROM InWest. Previously, the fund was managed by KplusV and StartGreenTo ensure continuity, the existing fund management team will remain involved and the three parties will work together for the time being.

These are our fund managers

Impact
and results

70

million euros invested

€70 million invested in sustainable innovation (up to Q1 2025)

900

kiloton CO2 savings

More than 900 kilotons of CO2 savings achieved by portfolio companies (as of 2022)

566

new jobs created

566 new jobs created in North Holland

230

million euros in co-investments

More than €230 million of co-investments attracted (through Q1 2025)

PDENH fund
game changers

Thorizon is developing an innovative molten salt reactor that converts existing nuclear waste into clean, safe and efficient energy. Thanks to a patented system with interchangeable cartridges, the reactor makes best use of fuel and minimises...

The energy market faces a major challenge: balancing supply and demand in an increasingly dynamic system. Traditional methods fall short of addressing the fluctuations of renewable energy sources, such as wind...

The fashion industry is known for its polluting nature, and the production of jeans is no exception. In fact, they are the most polluting. MUD Jeans tackles this problem...

The energy market is changing rapidly. Fluctuating supply and demand of renewable energy sources make it necessary to deal with energy in a smart and flexible way. Sympower responds to this challenge by...

The world of steel structures is changing, and Amsterdam-based MX3D is at the forefront of this transition. The company developed a pioneering technology that allows complex steel objects to be rendered in virtually...

RGS Development specialises in energy conversion without moving parts. With their thermoelectric expertise, the company develops, manufactures and integrates innovative heat exchangers that can convert heat - up to 1500°C into electricity.

Making homes more sustainable is a crucial step in the energy transition. Triple Solar plays an important role in this with its innovative PVT heat pump systems. These systems combine the power of solar energy with...

Demand for renewable energy is growing, while traditional energy sources are becoming increasingly scarce. Agricultural and food sector companies, among others, produce many organic residual streams, which are often not optimally...

The chemical sector faces an important task: making production processes and raw materials more sustainable to minimise climate impact and reduce fossil dependency. ChainCraft, a spin-off of Wageningen University & Research,...

Data centres are big consumers. Energy, water, space - everything goes through them at a rapid pace. Asperitas saw that things could be done differently and developed Immersion Cooling technology. Liquid cooling that makes servers much more sustainable and...

Related
articles

9 September 2025

Asperitas raises follow-on investment for international scale-up

News
Asperitas, the European pioneer in immersive cooling and sustainable data centre solutions, has successfully completed a new investment round. The round was led by...
13 May 2025

Thanks to PDENH, MX3D is now making the move to global scale-up

News
Imagine a 3D printer that prints not plastic, but steel. And then not for a scale model, but for a...
6 May 2025

PDENH: catalyst for sustainable economic growth in North Holland

Knowledge
How does a fund such as the Participation Fund for Sustainable Economy North Holland (PDENH), which has been part of ROM InWest since 2024, contribute to...
18 March 2025

Thorizon raises EUR 20 million for innovative molten salt reactor

News
Thorizon, the North Holland-based deep-tech company focused on innovative nuclear energy solutions, has raised €20 million to accelerate...
14 November 2024

Sympower raises €21.3 million for expansion and accelerated European expansion

News
Sympower, a leading and independent provider of flexibility services in Europe, has raised €21.3 million. The company will use the capital...
22 April 2024

Sustenso takes new step towards further growth and development

News
Sustenso, the innovative company that converts green waste into biogas, is leaving investment fund PDENH with effect from 8 April. That decision follows...