Recent funding rounds at Rockstart

In recent funding news, we’re thrilled to share the success stories of a couple of our portfolio startups that have secured significant support in recent months. Join us in celebrating these purpose-driven founders.


Planboo, a Rockstart AgriFood portfolio company, has recently secured funding from investors including Katapult, Silverstrand Capital, Rockstart, Imaginal Seeds, and 8+ Ventures.

Specializing in biochar carbon removal, Planboo utilizes plant waste, particularly bamboo, to produce high-quality carbon dioxide removal credits.

With this support, Planboo plans to grow its team and accelerate the scaling of its biochar MRV technology, aiming to enhance accuracy and reliability while expanding its support for carbon removal and sustainable agricultural practices globally.

Eddy Grid

Eddy Grid, a Rockstart Energy portfolio company, has raised a €1.5 million round!

Eddy Grid is committed to providing consistent and affordable green energy. This supports sustainable energy consumption and indirectly promotes the electrification of mobility and industry. They assist businesses of all sizes, from SMEs to large industrial enterprises, in addressing power shortages, surplus capacity, or solar panel utilization. Transparency is a core principle in their approach to sustainable energy solutions.

This round was led by the Graduate Entrepreneur Fund, headed by Herberth Samsom, with contributions from Rockstart’s Energy Fund and Volve Capital. Notably, angel investors Jan Saan of, Thijs Verheul and Sjuul Berden of United Wardrobe, and Bastiaan van de Rakt of WhyCommitCapital have also joined in.


Hexwise, a Rockstart Energy portfolio company dedicated to optimizing industrial energy efficiency, has recently closed a pre-seed funding round. Using state-of-the-art technologies like the Industrial Internet of Things (IIoT), Big Data, Cloud Computing, and Artificial Intelligence, Hexwise provides valuable insights into heat transfer performance in industrial settings.

The funding round saw participation from investors such as Rockstart, OostNL, and a consortium of angel investors, marking a step forward in Hexwise’s mission to improve the reliability, sustainability, and performance of critical heat transfer systems.

This funding will enable Hexwise to further develop its solutions, focusing on expanding its digital twin technology, forming strategic partnerships, and laying the groundwork for international expansion.


REDUCED, a Rockstart AgriFood portfolio company raised a €6 million round!

REDUCED uses fermentation technology to transform food and agriculture industry side streams into natural food ingredients. The company has developed proprietary processes using novel fermentation technology to extract unique umami flavors from food industry side streams at a lower cost through expedited processing, with a lower CO2 impact.

This round included new investors Novo Holdings and the Nordic flavor house Einar Willumsen, as well as existing investors EIFO and Rockstart. The founders will use the funding to further develop their technology platform, broaden their portfolio of savory ingredients, secure production capacity, implement certifications, and increase sales and marketing efforts.

Congratulations to the teams! We look forward to sharing more updates on their journey as they make a positive impact in their respective industries.