Deedster, a Swedish provider of data and digital tools for measuring and managing carbon emissions tailored to financial institutions, has been named the Programme Winner of the Spring 2025 edition of Mastercard Lighthouse MASSIV.
The announcement was made during the Lighthouse Grand Finale award ceremony at Latitude59 in Tallinn.
As the winner, Deedster will now receive continued support from Mastercard and will pitch for inclusion in Mastercard’s global start-up engagement initiative, Start Path.
The company offers services to banks, payment providers, and card issuers, aiming to support them in tracking and reducing their carbon emissions.
Deedster was recognised for its strong partnership potential, with the team commended for accountability and progress in areas such as networking and impact measurement during the programme.

“We are so proud to be appointed winners in a cohort with so many bright teams and innovative solutions. It is a recognition for Deedster that we are on the right path and also a recognition of net zero transformation as a very urgent topic,”
said Niclas Persson, Chief Executive Officer and Co-founder of Deedster.
He added,
“For Deedster, the Lighthouse Programme helped us to further validate and qualify the impact potential of our business together with UNDP, but most importantly Mastercard has opened up several avenues in their network for scaling our SME offering for banks. We can now accelerate our rollout of a lean and cost efficient solution for banks to address the pain point of sourcing data for regulatory reporting while at the same time helping their SME customers with green transition and financing.”
Two other Nordic companies were named finalists in the Spring 2025 programme: TrustStamp Denmark, which delivers privacy-focused, interoperable identity solutions aimed at enabling underserved communities to securely access services; and Empower.Eco from Norway, a digital traceability and data solutions firm focused on waste tracking and circular economy systems.

“Deedster, Empower.Eco and TrustStamp are highly impactful companies touching upon social impact, circularity and sustainability. We are proud to have worked on the scaling journey of five impact tech start-ups this spring programme. It is important to support start-ups impacting both people and planet and their contribution to achieving the UN Sustainable Development Goals,”
said Mats Taraldsson, Head of Fintech and Impact Tech Engagement at Mastercard Northern Europe.
Empower.Eco also received the Impact Potential Award for its work in using blockchain technology to improve transparency and accountability in global waste value chains.
Featured image credit: Mastercard