NEW YORK, July 1, 2025 /PRNewswire/ -- Aquiline, a private investment firm specializing in financial services and technology, has closed its acquisition of SEI's Family Office Services business. As an independent company, the business will revert to its original name, Archway. After a strong period of growth under SEI's ownership, Aquiline is excited to support Archway with substantial new investment into product, customer experience, and talent. Archway also announced the appointment of several key executi ...