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Climate finance and blended finance: funds, development banks and access routes

203 matching capital sources on the AESFIP database · Last checked October 2026

Climate finance is money aimed at cutting emissions or helping communities adapt to climate change — from public climate funds and development banks to private investors. Blended finance uses public or philanthropic capital to take extra risk so that commercial investors can join.

For many projects in Africa and developing countries, the deal only works when both are combined: a concessional or first-loss layer that makes the commercial layer possible. This page lists the climate funds, blended finance facilities and development banks on our database, with practical routes to approach them.

Find the right route for your project

Ask iSustain Advisor Live about climate finance for your country, sector and project stage. Your free result includes a project summary, match count and three named sample organisations.

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Where climate finance comes from

  • Multilateral climate funds (Green Climate Fund, Global Environment Facility, Adaptation Fund, Climate Investment Funds).
  • Multilateral and bilateral development banks.
  • Donor-country programmes.
  • Philanthropic foundations.
  • Private and impact investors.

How blended finance structures work

Each tool reduces a specific risk — construction, currency, offtake or early-stage — so that private lenders and investors will commit. Common tools include:

  • First-loss capital.
  • Guarantees.
  • Concessional debt.
  • Technical assistance grants.
  • Results-based payments.

Preparing to approach climate and blended finance

  • Quantify the climate impact.
  • Show the full capital stack and what each layer is for.
  • Explain why concessional money is needed (and not just cheaper).
  • Present safeguards and gender considerations from the start.

The funders

Each profile shows mandate, instruments and sector appetite. Verified contacts and application routes are available to members.

Showing 21 of 203 matching capital sources. The remaining 182 — including their verified routes and eligibility criteria — are reserved for members.

Get matched shortlist for your project

Knowing a funder's name is only 10% of the battle. iSustain Advisor Live finds the best-fit financiers and instruments for your project, the clearest route in, and how to approach them — based on your country, sector, stage and capital requirement.

Common questions

What is climate finance?
Public and private finance aimed at reducing greenhouse gas emissions (mitigation) or helping people and economies cope with climate change (adaptation).
What is blended finance?
The use of public or philanthropic capital to reduce risk for private investors — through first-loss, guarantees, concessional loans or grants — so that more private capital flows to development and climate projects.
Which climate funds support Africa?
The Green Climate Fund, Global Environment Facility, Adaptation Fund, Climate Investment Funds and the African Development Bank's climate facilities are among the largest. Many more are listed on this page.

Related guides

Official sources: ICMA Green Bond Principles · Climate Bonds Initiative · Convergence (blended finance). Reviewed by the iSustain Global research team against funders' published criteria.