The Rockstart Energy Fund is part of Rockstart, an international ecosystem focussing on matching technology start-up companies with market experience. The needed world-wide energy transition is not possible without the innovation from start-ups. The Rockstart Energy program supports energy start-ups in their research en development, the validation of their business model and the selection of the best product-market combinations. Subsequently, the ecosystem helps companies to grow internationally. The Rockstart Energy Fund can provide growth-financing to these companies to help them scale-up.