S&P Family Office

S&P Family Office

SONNTAG Family Office was founded in 2001 as a subsidiary of a regionally dominant commercial law firm in Augsburg. The firm is structured as a multi-family office, taking on fiduciary responsibility for large private fortunes. Its origins inside a legal practice shape a posture that emphasizes structuring, discretion, and the controlled transfer of wealth across generations. The firm offers integrated advice across all asset classes, drawing on a network of international specialists to coordinate investment strategy, manager selection, and reporting. While it does not publicly disclose specific portfolio allocations or named investment holdings, the firm highlights its ability to negotiate cost advantages by pooling client purchasing power — a model that resembles a cooperative investment club. Its geographic focus is concentrated within Europe, and the firm cites experience across liquid and illiquid markets, including real assets and private-market exposures that align with multigenerational wealth timelines. Day-to-day leadership sits with three managing directors, though the firm does not name the individuals publicly on its website. The office operates from a single headquarters in Augsburg and encourages contact from families seeking confidential asset structuring and succession planning. In parallel, the firm supports philanthropic engagement through ties to Stiftung der Deutschen Wirtschaft and Studienkompass, indicating a structured approach to charitable governance for client families. The firm’s structural differentiator is its explicit alter-ego operating principle: it commits to acting solely in the client’s best interest, free from product-provider incentives. This independence, combined with its origin inside a law firm, makes SONNTAG resemble a family general counsel that also handles treasury — a model that separates it from both private banks and standalone asset managers in the DACH region.