Marylebone Partners

CIO Dan Higgins leads investment decisions alongside an investment committee chaired by Stuart Roden, previously chairman of Lansdowne Partners. Higgins spent his earlier career running equity portfolios at Mercury Asset Management and serving as CIO of the $8bn alternatives manager Fauchier Partners. The committee makes decisions collaboratively, drawing on a network built over three decades.

The firm sources through a personal network of investors, peers, executives, advisors, and clients cultivated over more than thirty years. The firm explicitly states that this relationship-driven model, combined with fundamental analysis and subjective judgment, is designed to surface opportunities where inefficiencies arise from short-termism or behavioral biases.

Since November 2025, Marylebone Partners has been part of Brown Advisory following FCA regulatory approval. However, the structure preserves Marylebone's independent investment committee, brand, and principal ownership — an uncommon arrangement that maintains the firm's entrepreneurial character while providing access to Brown Advisory's institutional infrastructure.

Public equities lie at the center of the portfolio, but the firm maintains an unconstrained global remit that extends to fixed income, real assets, and specialist credit including distressed debt. The three formal investment strategies are direct public equities, allocations to specialist external funds, and hard-to-access special situations and thematic investments.

David Haysey, formerly of RIT Capital Partners and Deutsche Asset Management, and Marc Jonas, co-founder of Sun Capital Partners, serve as non-executive directors. Haysey's background includes running European equities for SG Warburg and serving as CIO and co-CEO of Deutsche Asset Management's European Absolute Return business.