The financial terms of the deal were not disclosed.

Dilmun, a New York-based family office originally from the gulf has acquired a 40 per cent equity stake in LJ Partnership, the London-based private wealth and real estate partnership backed by the Hong Kong-based Peterson Group.

To be rebranded as Alvarium Investments in 2019, LJ Partnership is planning to open offices in New York, Singapore, Sydney and Auckland as part of its worldwide expansion to meet the needs of Asian high net worth families and institutional investors.

The Peterson Group, a strategic investor in LJ Partnership since 2015, holds a 35 per cent stake in the group.

The financial terms of the deal were not disclosed.

Changes
LJ Partnership has also announced senior management changes. Co-chairman Andrew Williams (formerly chief executive) is currently focused on driving the firm's growth in Asia and Australasia. 

Alexander de Meyer (formerly chief operating officer) has been appointed CEO and is based in London. 

"Asia Pacific represents perhaps the world's most dynamic region for investors and investment attitudes, and will continue to lead global wealth creation,” said de Meyer. “LJ Partnership is exceptionally well-placed to help our Asian clients -- both family office and institutional -- to research and allocate to attractive global investment opportunities in public and private markets. To be able to match capital from Asia, the Americas, Europe and the Gulf and to transact quickly allows preferred access to direct deal flow and co-investment for our Asian client base."

LJ Partnership, which has offices in London, Hong Kong, Miami and Geneva, supervises in excess of $15 billion of assets on behalf of individuals, family offices, foundations and charities.