Paradigm Norton has bought Richmond-based Tower Hill Associates and Exeter-based Clover Wealth Management for an undisclosed sum.
Tower Hill Associates serves clients in Surrey and south west London, while Clover offers services to clients in Devon.
Paradigm Norton will continue to operate from its existing offices in Bristol, London and Torquay, but will also now have an office in Exeter.
Barry Horner, chief executive of Paradigm Norton, said: “The locations and quality of these businesses couldn’t be any better. We plan to continue to expand our services and footprint in London and the south west.
“Both firms are chartered, have a reputation for delivering outstanding client care and share our values and our vision for the future”.
Paradigm Norton provides financial planning, investment portfolio management and tax and estates services to its clients who are primarily based in London and the south west.