Invest Together,
Grow Together

We are a company born out of teamwork and collaboration.

It’s with the help of our investors that we are able to expand across Europe and accelerate the energy transition.

Sympower secures €22 million of further VC investment to accelerate Europe’s energy transition.

Sympower Board

Transforming Europe’s electricity grid at a critical time in the continent’s history.

Having raised an oversubscribed €22 million investment round from a group of five venture capital (VC) funds to finance growth in low carbon grid-balancing services, we have strengthened our position as a leading European independent flexibility services provider.

The raise is led by Silicon Valley-based Activate Capital, a leading VC and growth equity firm serving climate and sustainability pioneers in energy, mobility, and industrials. Together with Activate Capital, the consortium of VC firms include Expon Capital as well as previous investors Rubio Impact Ventures, PDENH and Rockstart.

Our Investors

Activate Capital

Based in San Francisco, Activate Capital is a leading partner to companies building smart, sustainable systems across the energy, mobility and industrial technology markets.

Sustainability and resiliency are at the heart of our investment strategy. Our portfolio companies help our economy adapt to the new challenges of the 21st century, all while striving to deliver long-term value for our investors. Our vision is to build platforms for a resilient, sustainable future.

Rubio Impact Ventures
Rubio Impact Ventures is a leading impact venture fund based in the Netherlands with €150 million AUM.

Rubio invests in world-changing entrepreneurs who unite powerful positive impact with a scalable commercial business; the future-proof approach to successful business.

Rubio offers its investments a winning blend of capital, expertise and network access to help them accelerate to the next level.

Expon Capital

A Luxembourg-based venture capital firm backing teams that can shape our shared future in a positive direction.

Expon invests in growing tech companies run by awe-inspiring managers that clearly fit within the UN Sustainable Development Goals.

Expon strategically diversifies across sectors, industries, geographies, and yes, even UN SDGs.

PDENH is an €85 million investment fund initiated by the Province of Noord-Holland and mandated to invest in sustainable ventures focusing on energy, circular economy, and sustainable mobility.

PDENH has built a successful portfolio of 35 impact ventures that generate substantial societal, economic, and financial returns.

Enfuro Ventures

Enfuro Ventures is the joint investment venture from experienced entrepreneurs Erik Schut and Ruud Rijbroek investing in early stage companies that accelarate the energy transition.


Rockstart is an early stage accelerator-VC that empowers purpose-driven founders across three domains: Energy, AgriFood and Emerging Technologies.

Rockstart has invested in more than 280 startups and its alumni value to date is more than $1bn.

Sympower is a Rockstart portfolio company since its participation in the Rockstart program in 2016. Rockstart invested in this round through its €27m Energy Fund.

Koolen Industries

Koolen Industries’ mission is to make clean energy and clean mobility the new normal for everyone. Available. Attainable. Affordable.

Koolen Industries invests in cleantech companies and enables its group companies to perform and cocreate. By working together in the group and with outside partners, Koolen Industries delivers integral turn-key clean energy & mobility solutions to customers through a one-stop-shop concept.

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