
Blended finance is a financing approach that combines different sources of capital to achieve a specific development goal. It's a game-changer for mobilizing impact.
Blended finance brings together public and private sector funding to address market gaps and leverage additional investment. This combination of capital can be used to support projects that are too risky or too expensive for private investors alone.
By blending different types of capital, blended finance can help unlock new investment opportunities and achieve greater development impact.
What is Blended Finance?
Blended finance is an approach to combining risk-tolerant capital with capital seeking market-rate returns to address social and environmental issues.
Blended finance structures aim to catalyze risk-adjusted market-rate-seeking financing into impact investments. This is done by combining different levels of risk in order to achieve a greater level of impact.
The Blended Finance Working Group seeks to address the bespoke nature of designing blended finance structures, with the goal of decreasing costs and increasing the frequency and scale of blended finance investments.
Blended finance is an approach to finding the right mix of different resources and capital to enable the greatest level of impact. This approach is used by investors to create impact while fulfilling their duties to internal and external stakeholders.
By combining risk-tolerant capital with capital seeking market-rate returns, blended finance structures can be used to address some of the world's critical challenges, such as homelessness and climate change.
The utilization of blended finance structures and catalytic capital is increasingly relevant within the impact investment ecosystem.
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Importance
Blended finance is a powerful tool for mobilizing capital to address some of the world's most pressing challenges. The impact investment industry has grown significantly, with over $228 billion invested, but there's still a huge funding gap to reach the United Nations' Sustainable Development Goals (SDGs).
The estimated annual funding gap for the SDGs is between $5 to $7 trillion, making it a crucial need for the industry. Blended finance can help bridge this gap by enabling conventional capital flows into impact-focused products, companies, and funds.
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One of the key advantages of blended finance is its ability to attract more conventional or risk-averse investors to impactful funds. This can be achieved by structuring blended finance vehicles that meet their risk and return targets.
Here are some of the benefits of blended finance:
- Blended finance attracts more conventional or risk-averse investors who might be unfamiliar with the sector to impactful funds.
- Blended finance enables impact-focussed investors to use their resources to leverage in additional capital, creating a multiplier effect.
- Blended Finance creates opportunities to efficiently recycle capital – particularly concessional capital – thereby increasing the value for money for impact-focused investors.
- Blended Finance can enable the provision of capital to a wider range of enterprises and business models.
By leveraging blended finance, charities and enterprises can benefit from more flexible and patient investment products. These products can offer features such as unsecured loans, affordable interest rates, and longer terms, making it easier for them to access capital.
Characteristics
Blended finance approaches allow two or more investors to invest alongside each other while targeting their own objectives.
One investor can pursue market rate returns, while the other provides sub-market rate returns in exchange for social or environmental impact. This is often referred to as "Private Capital" targeting market-rate or near market-rate returns, and "Public/Philanthropic Capital" targeting concessional, or more flexible/patient, capital returns.
Blended finance structures can expand the definition of what constitutes a feasible investment by providing a lower-cost layer of capital, enabling risk-averse investors to reassess opportunities as good investments.
This is achieved by creating a "blended pool", where impact-focused investors can invest alongside a more diverse group of investors.
Motivation and Rationale
Blended finance is a strategy that's gaining traction, and for good reason. Investors are motivated to use blended finance because it allows them to build a certain size or type of fund that wouldn't be possible with conventional structuring.
One scenario that triggers blended finance conversations is when an investor wants to leverage private capital with grant and/or public money. This is especially true for social impact bonds that require a combination of public and private capital.
Risk-return preferences, impact targets, and fiduciary responsibilities are all factors that drive investors to consider blended finance. It's a way to address risks and prevent market-rate investors from entering into an investment.
The resources needed to bridge the funding gap for sustainable development can't be met through public resources alone. Private investment is key to increasing the scope and impact of development finance and philanthropic funders.
Only a small percentage of worldwide invested assets are targeted at sectors and regions that advance sustainable development. This is due to the fact that large-scale investing usually flows into environmentally destructive activities.
Blended finance is designed to channel more private resources to the sectors and countries that are central for the SDGs and broader development efforts.
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Catalytic Capital: Mobilizing Greater Impact
Catalytic capital can play a significant role in addressing significant challenges such as climate change, sustainability in the renewable energy industry, and international development assistance.
Organizations like the IFC and World Bank, multilateral and development banks, Development Finance Institutions (DFIs), and Institutional Investors are prime examples of asset owners who are exploring catalytic innovations.
Catalytic capital can be used to prime early stage investments, helping to build financial capacity so that additional investors can be brought in over time.
This can be especially useful in enabling investments to scale up in developing or emerging markets where traditional private investors may be hesitant to enter.
The John D. and Catherine T. MacArthur Foundation, along with other foundations, impact investors, and nonprofits, has launched the Catalytic Capital Consortium, C3, to demonstrate the power of this form of investment.
Catalytic investors can bridge the gap between grants and traditional impact investments by accepting disproportionate risk and/or concessionary returns.
This allows them to unlock impact opportunities that may struggle to gain traction due to high upfront costs or uncertain return potential.
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Platforms and Mechanisms
Blended finance platforms bring together public and private sector entities to connect interests and resources to initiatives. These platforms provide capital suppliers with access to a pipeline of individual blended finance project transactions.
The Sustainable Development Investment Partnership, Convergence, and Tri Hita Karana Forum are examples of such platforms. Tri Hita Karana Forum, for instance, was launched as a unified, international framework for mobilizing commercial capital towards the Sustainable Development Goals (SDGs) in 2021.
These platforms help assess the efficiency of the blended finance model over time. They bring together Development Assistance Committee members and private sector entities, facilitating collaboration and scaling up participation in transactions.
Blended finance platforms offer several benefits, including access to a pipeline of project transactions and the ability to connect public and private sector interests.
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How It Works
Platforms and mechanisms are built on top of underlying technologies that enable their functionality. These technologies include APIs, which allow different systems to communicate with each other.
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APIs are the backbone of many platforms, enabling features like social sharing and payment processing. For example, a social media platform might use an API to share user data with a third-party analytics tool.
APIs are often standardized, which makes it easier for developers to integrate them into their own systems. This standardization is crucial for the widespread adoption of platforms and mechanisms.
Standardized APIs also enable the development of third-party apps, which can extend the functionality of a platform. For instance, a payment platform might allow developers to create custom payment buttons using a standardized API.
The use of standardized APIs has led to the creation of entire ecosystems around popular platforms. These ecosystems are made up of developers, third-party apps, and other services that integrate with the platform.
The integration of these services creates a snowball effect, where more and more features become available as more developers join the ecosystem. This is a key factor in the success of many popular platforms.
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Platforms
Platforms are key to making blended finance work. They bring together public and private sector entities to connect interests and resources.
The Sustainable Development Investment Partnership, Convergence, and Tri Hita Karana Forum are three platforms that put blended finance into practice.
These platforms provide capital suppliers with access to a pipeline of individual blended finance project transactions. This effectively scales up the participation of both public and private investors in transactions.
Tri Hita Karana Forum, or THK, began as a roadmap for mobilizing commercial capital towards the Sustainable Development Goals (SDGs). It was recently converted into a Blended Finance platform in 2021.
The Community of Practice on Private Finance on Sustainable Development brings together Development Assistance Committee members and private sector entities.
Supporting Mechanisms
In Blended Finance, supporting mechanisms play a crucial role in attracting and supporting private sector investors. These mechanisms help manage risks and reduce transaction costs.
One way supporting mechanisms do this is by providing technical assistance, which can include grant funds to supplement the capacity of investees and lower transaction costs.

Risk underwriting is another supporting mechanism that fully or partially protects the investor against risk through appropriate risk mitigation.
Market incentives, such as guaranteed payments contingent on performance of future pricing and/or payment in exchange for upfront investment in new or distressed markets, are also used.
Supporting mechanisms can be classified into three main categories: technical assistance, risk underwriting, and market incentives.
Here are some key terms associated with supporting mechanisms:
- Technical Assistance
- Risk Underwriting
- Market Incentives
- Investment
- Development finance institutions
- Sustainability
- Sustainable development
Examples and Amounts
Blended finance can be seen in action through various examples, which demonstrate its effectiveness in mobilizing finance for development. The Nesta Arts and Culture Impact Fund is a notable example, with £23m in funding that included £5 million in grant funding from the Arts Council England and the National Lottery Heritage Fund.
The fund attracted a further investment of £18 million from several investors, including Big Society Capital. This shows how blended finance can bring together different sources of funding to achieve a common goal.
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The Recovery and Resilience Loan Fund is another example of blended finance in action, providing £25 million in loans and £4 million in grants to organizations affected by the coronavirus pandemic. The fund was backed by the government's Coronavirus Business Interruption Loan Scheme (CBILS).
Here are some key statistics on the amounts of finance mobilized through blended finance:
These statistics demonstrate the growth of blended finance over the years, with a significant increase in the total amount of finance mobilized.
Examples
The Nesta Arts and Culture Impact Fund is a £23m fund that attracted a further investment of £18 million from several investors including Big Society Capital.
The Recovery and Resilience Loan Fund was developed in 2020 to offer immediate affordable credit to organisations who were unable to access other funding sources to meet their needs.
It provided £25 million in loans and £4 million in grants, backed by the government’s Coronavirus Business Interruption Loan Scheme (CBILS).
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The fund was awarded Social Enterprise Deal of the Year at the 2021 UK Social Enterprise Awards, recognising its importance and responsiveness.
The Access Growth Fund is a partnership with the National Lottery Community Fund that has offered over £36.5m in flexible, unsecured loans and £6.8m in grants to over 500 social enterprises and charities since 2016.
Social Investment Tax Relief (SITR) allowed investors to claim a 30% income tax relief on their investment, via shares or debt, into qualifying social enterprises and charities.
The Resonance SITR Top-up Facility is an example of a fund using SITR, investing in social enterprises addressing regional poverty and inequality.
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Amounts Mobilized
The amounts mobilized through blended finance have been steadily increasing over the years. By 2023, a total of $15.409 billion was mobilized.
One notable year was 2019, when the total mobilized reached $16.632 billion. This was a significant increase from the previous year.
The types of finance mobilized also varied, with credit lines making up a small portion of the total. In 2012, credit lines accounted for just $0.18 billion.
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The largest share of finance mobilized was typically in the form of direct investment in companies and Special Purpose Vehicles. In 2021, this accounted for $4.197 billion.
Here's a breakdown of the total finance mobilized per year:
The amounts mobilized have been steadily increasing, with some notable fluctuations over the years.
Challenges and Opportunities
Blended finance is not a magic solution, it has its challenges. Achieving effective risk sharing between public and private sectors requires careful structuring and coordination.
Scalability and replicability across different sectors and geographies remain key considerations. This means that blended finance mechanisms need to be adaptable to various contexts.
The potential benefits of blended finance in driving innovation and accelerating the transition to clean energy are undeniable. By mobilising additional capital and fostering collaboration between stakeholders, blended finance can bring transformative change.
Careful structuring and coordination are necessary to make blended finance work effectively. This involves harnessing the strengths of both public and private sectors.
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