Blended Finance Market Remained Flat at $15.5 Billion
Investors are shifting toward climate adaptation projects, impacting capital availability for developing nations.
Updated on Oct. 8, 2026 in Corporate Finance
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Annual climate blended finance volumes stayed at $15.5 billion in 2025 as development banks pivoted toward guarantees to mitigate risk. While private sector participation grew, capital flows are increasingly concentrated in middle-income markets.
Why it matters
The shift toward risk-mitigation tools like guarantees reflects a strategic pivot by development banks to stretch thinning aid budgets. This concentration of capital toward lower-risk, larger projects is altering the competitive landscape for businesses operating in lower-income regions.
Climate adaptation financing surged 133% to $5.6 billion, while development bank guarantee volumes doubled to $5.6 billion. Each dollar of concessional capital mobilized $2.57 in private investment, an increase from $2.16 in 2024.
The players
Convergence
A global network providing market data and research on blended finance solutions.
OECD
An international organization that shapes policy standards and tracks global development aid.
The details
Development banks are increasingly favoring guarantees over direct lending to leverage private capital, a move that supports larger project sizes now averaging $194 million. Governments are simultaneously deploying national platforms to bundle policy reforms and financing, prioritizing projects that minimize risk to attract private co-investment. This structural change explains why low-income countries secured only 13% of total activity despite the overall 27% increase in private financing.
Timeline
2023: 30 blended finance funds were launched.
2024: Each dollar of concessional capital mobilized $2.16.
2025: Climate adaptation financing increased to $5.6 billion.
2026: OECD predicts ODA to low-income countries will fall 10.9%.
2028: Convergence projects potential market size scenarios ranging from $24.7 billion to $53 billion.
Market Landscape
This report follows the trend of shrinking traditional aid established by the OECD official development assistance framework. The pivot toward private mobilization highlights a shift away from direct public lending as the primary funding mechanism for international development.
Operators should anticipate that projects requiring development bank support will increasingly demand risk-mitigation guarantees rather than traditional funding. Businesses in lower-income countries should monitor whether local national platforms provide the project preparation support needed to attract this concentrated private capital.
The takeaway
The blended finance market is moving toward larger, lower-risk projects as development banks prioritize efficiency in the face of declining official aid. Firms should monitor the rise of national coordinating platforms as these bodies now function as the primary gatekeepers for accessing project-linked finance.
Further reading
For more context on how capital structures affect global development, explore our Corporate Finance section.
Source note: This article includes information reported by ImpactAlpha.
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