Aquiline acquires SEI’s Family Office Services business for $120m
US-based financial services firm SEI has agreed to deal to sell its Family Office Services business to Aquiline Capital Partners for $120 million.

SEI sells Family Office Services business to Aquiline for $120m
With $723 billion in assets, and led by Sandy Ewing, the business is currently used to provide wealth management technology and outsourced services to family offices across the US.
These are delivered through SEI’s Archway platform which, launched in 2002, supports accounting, investment management and reporting functions.
When the transaction closes, expected 30 June 2025 following regulatory approval, the business will operate under the brand name Archway.
Furthermore, the Family Office Services employees in SEI’s Denver, Indianapolis, and Oaks offices will transition to Aquiline along with the company.
Vincenzo La Ruffa, managing partner at Aquiline, says the private investment firm plans to “further invest and extend the platform”, although provides no further details of what this development will include.
Explaining the reasoning behind the sale, Ewing says the deal aligns with SEI’s broader strategy of “investing in the areas of our business where we believe we can drive growth”.