● The new edition of Clim@ Scaler supports scaleups combating climate change through innovative energy efficiency, circular economy, resource efficiency and sustainable energy solutions

● Clim@ Scaler is open to ventures from GGF target markets in Southeast Europe, Turkey, the European Eastern Neighbourhood Region, and the Middle East and North Africa


Luxembourg and Amsterdam, 08 March 2022 – The Green for Growth Fund (GGF) and Rockstart, a global early-stage investor, have joined forces to launch the first edition of Clim@ Scaler to develop the most innovative energy efficiency, circular economy ,and sustainable energy solutions. Following the success of previous editions which showcased start-ups, Clim@ Scaler 2022 aims to promote impactful ventures that are successfully tackling sustainability issues and looking to scale their climate solutions. Applications are officially open on and Clim@ Scaler invites ventures from GGF’s target regions, namely, Southeast Europe, Turkey, the European Eastern Neighbourhood Region, and the Middle East and North Africa, to submit their applications. 

The initiative is run in collaboration with Rockstart, one of Europe’s leading early-stage investors. Rockstart has run over 35 programs that are dedicated to startups that focus on regenerative and sustainable impact. To date, Rockstart has leveraged an international network of investors, leaders, and corporate partners to support over 260 ventures, who have raised €150+ million of funding. 

Selected green ventures will gain access to a four-month accelerator program designed specifically for scaleups with an impact business model and that are currently based in or expanding their activities into GGF target regions. The program entails personalized mentorship, interactive training, corporate connections with key industry leaders in the energy, agritech, and emerging tech sectors, financial support, and an opportunity to engage with investors in an interactive event. Furthermore, the GGF Technical Assistance Facility will support finalists’ post-program by offering technical assistance needed to scale up ventures and their green solutions.  

GGF Chairman Olaf Zymelka said: “Clim@ Scaler has always been about finding innovative business solutions that can transform the way we mitigate and adapt to climate change. However, this year, we are going one step further to find ventures already on the journey to sustainability and see how we can ramp up their efforts in a targeted and impactful way. We are excited for the launch of this edition and look forward to finding promising ventures together with Rockstart, a leading early-stage investor.”

Commenting on the partnership, Rune Theill, CEO and Co-Founder, Rockstart stated: “At Rockstart we are on a mission to empower purpose driven founders to drive positive change on a global scale. The Clim@ Scaler initiative couldn’t align any better with what we are set to achieve. In the recent years we have seen many promising innovations coming from the markets targeted by Clim@ Scaler and we are thrilled to be able to contribute to their growth and, subsequently, regional positive impact.”

Finalists for Clim@ Scaler will be announced in April, with the program kicking-off shortly after and running through the summer. The seven finalists will participate in the tailor-made accelerator program, and at the end of the program have the chance to pitch towards an audience of relevant investors and corporate partners, which may be held digitally or in-person (depending on public health considerations).  

To apply or for more information on Clim@ Scaler visit or contact

The Green for Growth Fund invests in measures designed to cut energy use and CO2 emissions, and improve resource efficiency in 19 markets across Southeast Europe, the Caucasus, Ukraine, Moldova, the Middle East and North Africa. The fund provides such financing directly to renewable energy projects, corporates and municipalities or indirectly via selected financial institutions. The GGF’s Technical Assistance Facility maximizes the fund’s investment impact through support for capacity building at local financial institutions and partners. 

The GGF was initiated as a public-private partnership in December 2009 by Germany’s KfW Development Bank and the European Investment Bank, with financial support from the European Commission, the German Federal Ministry for Economic Cooperation and Development, the European Bank for Reconstruction and Development, and the Austrian Development Bank (OeEB). The fund’s growing investor base comprises donor agencies, international financial institutions and institutional private investors, including the International Finance Corporation, the Dutch development bank FMO, and the German ethical bank GLS. The GGF is advised by Finance in Motion GmbH. MACS Energy & Water GmbH, Frankfurt am Main acts as the technical advisor. 

For more information see and follow us on Twitter @GreenGrowthFund 

Rockstart is an early stage investor that empowers purpose-driven founders across three domains: Energy, AgriFood and Emerging Technologies. Rockstart invests in early-stage ventures and provides access to capital, market, and expertise by connecting founders with co-investors, mentors, partners, corporates and the wider Rockstart network.

Rockstart has invested in more than 260 ventures and its alumni value to date is more than $1bn. Rockstart is an international team of 40+ professionals dedicated to empowering purpose-driven founders to become scalable and drive positive change on a global scale. Rockstart has notable exits such as Wercker, Bouw7, iClinic, and in 2021, 3D Hubs and Brincr. The company has offices in Amsterdam, the Netherlands, Copenhagen, Denmark and Bogota, Colombia.

Media contact GGF
Merle Römer
Manager Marketing & Communications
Phone: +49 (0)69 271 035-171 

Media contact Rockstart
Veronica Fresneau
Head of Marcom
Phone: +31 (0)613026650