British International Investment is preparing a major expansion across Africa after unveiling a new five year strategy that aims to mobilise £9 billion into the continent between 2026 and 2031, with a sharp focus on frontier economies, climate finance, and infrastructure capable of unlocking private investment.
The UK development finance institution expects nearly £5 billion of the target to come directly from its own balance sheet, while the remaining capital is expected to be mobilised from private investors in Africa and international markets.
The strategy marks one of the clearest signals yet that the UK is doubling down on investment led development in Africa, shifting away from traditional aid models and leaning more heavily on blended finance, risk sharing, and long term capital deployment.
At the centre of the plan is a commitment to channel at least 25% of new investments by value into frontier markets, particularly countries classified as UN Least Developed Countries. BII specifically highlighted African frontier economies including Sierra Leone and Zambia as priority destinations for investment.
For African economies that often struggle to attract commercial investors because of currency volatility, political risk, or limited market depth, the strategy could provide an important signal to global capital markets.
Rather than acting only as a lender or investor, BII is positioning itself as a catalyst that can absorb higher levels of risk and attract institutional investors into sectors that are traditionally underfinanced.
Those sectors include financial services, power, transport, trade infrastructure, digital connectivity, and sustainable industries, all areas widely viewed as essential for accelerating economic growth across the continent.
The climate dimension of the strategy is particularly significant. BII says at least 40% of all new investments during the strategy period will qualify as climate finance, a substantial increase from the 30% target under its previous framework.
That shift is expected to strengthen investment flows into renewable energy, electricity transmission networks, distributed power systems, and clean energy access projects across Africa.
The strategy is also closely linked to Mission 300, the international effort aimed at connecting 300 million people in Africa to electricity by 2030. As a result, energy infrastructure is expected to become one of the institution’s most strategic investment themes over the next five years.
For climate and energy developers operating in Africa, the announcement could open fresh opportunities for financing partnerships, particularly in energy transition projects that require patient capital and strong institutional backing.
The plan also arrives at a time when African governments are under mounting pressure to close infrastructure gaps, expand energy access, and build climate resilience while public finances remain strained.
By increasing its appetite for frontier market exposure and climate aligned investment, BII is effectively betting that development finance can play a larger role in de risking African markets and crowding in commercial capital at scale.
If successful, the strategy could help reshape how long term infrastructure and climate projects are financed across some of Africa’s most underserved economies.
