The Investment Window offers support to impact fund managers seeking to scale their innovative impact ideas and build on proven investment fund concepts. Through this window, the initiative provides funding in the form of first-loss equity to impact investment funds in order to (a) contribute to the Sustainable Development Goals (SDGs) in developing markets, (b) address social themes, and (c) mobilise capital from the private sector at scale.

SIFI invites all interested candidates to submit proposals to its fourth Call for Proposals under the Investment Window, centred on the theme “Scaling Investable Solutions for Water and Ocean Resilience”. This Call for Proposals seeks commercially viable, market-driven solutions that contribute to climate adaptation, such as the resilience of water resources and marine ecosystems, strengthening community livelihoods, and reducing vulnerability to climate risks. Eligible thematic areas: sustainable aquaculture and coastal livelihoods, nature-based coastal protection and restoration, water security and resource efficiency, ocean data and monitoring for adaptive management, climate risk finance, including investment funds that provide insurance solutions or issue resilience bonds as part of their investment strategy. Solutions should complement public-sector efforts without duplication, while mobilising private capital to deliver measurable impact.

Solutions shall target any country eligible to receive official development assistance (ODA) according to the most recent OECD-DAC List of ODA Recipients. Solutions that target low-income and least-developed (LDC) countries are highly encouraged. They shall address at least one of the following SDGs:

• SDG 6 (Clean Water and Sanitation): Ensure availability and sustainable management of water and sanitation for all.
• SDG 13 (Climate Action): Take urgent action to combat climate change and its impacts.
• SDG14 (Life Below Water): Conserve and sustainably use the oceans, seas and marine resources for sustainable development.

Preference will be given to solutions that integrate gender equality (SDG 5) as a cross-cutting objective across the SDGs listed above, particularly through interventions that accelerate the adoption of adaptation-oriented solutions to protect water resources for both people and nature. SIFI will select investments with at least 70% geographic allocation to ODA-eligible countries. At least one selected investment fund will demonstrate a strong alignment with SDG 14 (Life Below Water) in the eligible geographies.