What’s the largest Swedish family office by AUM?

Our familyofficehub.io research team has analyzed various Swedish families and their investment vehicles to identify the largest family office in the Scandinavian country. Ultimately, our analysis yielded the result that Ramsbury Invest AB, the investment firm of Stefan Persson and his family, is the largest Swedish family office, with assets under management of over €15bn.

How does the Persson family invest?

The Persson family’s wealth originates from the global success of fashion giant H&M, founded by Erling Persson in 1947, and now majority-controlled by the family through Ramsbury Invest, which holds the majority of H&M shares. The Persson family’s investment strategy through Ramsbury Invest reflects a long-term, diversified approach with a strong preference for control and sustainability. Beyond fashion, the family invests in technology firms like Hexagon AB, venture capital funds such as Sound Bioventures, and fast-growing healthcare companies including Apotea and Anocca. Additionally, Ramsbury Estates in the UK, encompassing 19,000 acres of farmland, hospitality venues, and renewable-energy-powered breweries, showcases their commitment to real assets and sustainable development.

Alternative candidates for the Swedish family office ranking by AUM

Our familyofficehub.io team has evaluated several Swedish families and HNWIs to identify the largest family office by AUM. For instance, we have also considered Spotify co-founder Martin Lorentzon and his family office Rosello Company. Although the investment firm is a large-scale investor, e.g., in private equity through its majority shareholding of Cervantes Capital, it does not match the size of the Persson family office. Also, AltoCumulus, the family office of the billionaire Ax:son Johnson family, is a major Swedish family office. But, again, its assets under management are below those of the Persson family office. Also, Carl Bennet AB, which is rather a holding company-style family office, is a major family investment vehicle from Sweden. Overall, our familyofficehub.io research department concludes that there are multiple relevant single-family offices in Sweden, but the Persson family office Ramsbury Invest is the largest one.

Picture Source: Getty Images, Unsplash+ (19.05.2025)