
>$280 billion
mobilized by blended finance towards sustainable development in developing countries (Convergence, 2026)
Blended Finance
Blended finance refers to the use of catalytic capital from public or philanthropic sources to mobilize additional investment on commercial terms for sustainable development, often in emerging markets and developing economies (EMDEs). Blended finance structures bring public, philanthropic and private capital into a single structure, with each investor playing a distinct role and taking a different level of risk and return.
A blended approach allows investors with different investment objectives and risk profiles to invest in the same structure. This can be particularly helpful in EMDEs, where the risk-return profiles of projects or investments are often out of line with the regulatory, fiduciary, or commercial constraints of private investors. By improving that balance of risk and return, blended finance can make otherwise unviable investments more attractive to private capital and help mobilize additional financing toward development outcomes.
Catalytic capital works by accepting terms that commercial investors typically do not. Providers such as Multilateral Development Banks (MDBs), Development Finance Institutions (DFIs), donor governments, private impact investors, and philanthropies can take first-loss positions, provide guarantees on below-market terms, accept lower or later returns, or fund technical assistance.
In EMDEs, this may include mitigating foreign-exchange risk, uncertainty around project revenues or offtaker creditworthiness, or risks associated with newer technologies and markets. By taking these risks while ensuring any implied subsidy is minimized and time bound, catalytic capital leaves commercial investors better protected and better rewarded for the risk, mobilising private capital that would not otherwise invest.
Blended finance has shown it can mobilize private capital at scale, but remains small and slow to scale. Climate-related transactions now account for most blended finance by value. Yet total deal volume, at around USD 26 billion in 2025 (Convergence, 2026), is less than 1% of the USD 3.2 trillion a year that EMDEs other than China need to invest by 2035 (IHLEG, 2025).
Many structures remain bespoke, complex and costly to assemble, lengthening negotiations and limiting participation by institutional investors. Most blended funds already follow a handful of recurring structures. Greater standardization, common terminology, and better deal data could reduce transaction costs and make it easier for local investors and fund managers to participate. Building the capacity to design and replicate these structures will be critical to moving blended finance from one-off transactions toward greater scale.
This section brings together resources to help finance professionals, educators and others build the understanding and skills to structure blended finance and mobilise private capital.



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