In April 2025, William Blair’s Private Capital Advisory group added Tim-Oliver Seidel as managing director and the firm’s first secondaries lead in Europe. Industry publication Secondaries Investor was first to report the news with an exclusive article and feature in its daily e-newsletter.

As noted by the publication, Tim-Oliver “joins London-based managing directors Tom Lewis and Connor O’Keeffe as well as Zurich-based director Silke Wood within the European private capital advisory team. Lewis and Wood were hired by the investment bank in 2023, while O’Keeffe joined in 2024.”