STOA has been a signatory to the Operating Principles for Impact Management (OPIM) since April 2019. Initially hosted by the International Finance Corporation (IFC), the initiative has been owned by the Global Impact Investing Network (GIIN) since 2022. The 9 principles of the initiative serve as a benchmark for evaluating the impact management systems of funds and financial institutions. They are based on emerging best practices from a range of asset managers, asset owners, and financial institutions.
We undergo regular audits conducted by an independent third party to verify and confirm the alignment of our impact management system with these principles, as required by Principle 9. The most recent independent verification was carried out in April 2026 by the international consulting firm Stone Soup. The results confirm STOA’s alignment with the OPIM (high or very high alignment) and specify that “the total amount of assets under management by STOA in alignment with the OPIM principles amounts to €627.3 million as of December 31, 2025, representing 100% of STOA’s active portfolio.”
Our 2026 Disclosure Statement, which we share here, reports on our alignment with these 9 principles.
