Bestinvest has selected SEI to provide its Global Wealth Services (GWS) offering.
The strategic partnership will enable Bestinvest to establish a foundation for future growth and offer clients access to a broader range of wealth management services, says the firm.
It will now be able to manage its advisory, discretionary and executive-only business with straight-through processing via a single integrated platform.
"SEI's understanding and shared vision to develop a market-leading proposition, combined with their innovative solutions, is aligned with our business model and future plans for growth," says Bestinvest CEO Peter Hall.
Bestinvest currently has assets under management of around £4bn. In July, the weath manager recruited former UBS head of operations Donald Reid as chief operating officer.
More dates to be announced
Lowest level since 2016
Subset of fintech
Just one-fifth not in favour
Armed forces charity