Who funds the world health organisation? A list of its biggest donors

President Donald Trump's decision to withdraw from the world health organization (WHO) has caused the agency to lose its largest funder, with the US projected to contribute $958 million, or nearly 15 per cent of Who's $6.5 billion budget for 2025. Who’s budget relies heavily on voluntary contributions, making it difficult to prioritize global health issues. The US is followed by major donors like the Bill & Melinda Gates foundation, Gavi, and the European Commission. The US has instructed public health officials to cease collaboration with Who.