The Guinness family is currently worth approximately £856 million, which is around $1.13 billion USD as of 2025. Their wealth is rooted not just in the Guinness beer legacy but also diversified into property investments, agriculture (including a large estate that produces about 10% of the UK's onions), and financial stakes in multinational companies like Diageo. The family's fortune remains significant and well-managed, largely concentrated in the Iveagh line led by Arthur Edward Rory Guinness, the Earl of Iveagh.