Lonsdale left his role as head of business development at Psigma three months ago after just over five years.
His appointment follows the launch last month of the firm’s low cost model portfolio service, which offers investors with over £50,000 access to a range of model portfolios which invest in the same securities as the firm’s institutional clients.
The discretionary fund management service has an annual management charge of 0.4% plus platform fees, and was launched in collaboration with FinaMetrica.
Des Hogan, head of business development, Thomas Miller Investment, said: “This is an exciting time for Thomas Miller Investment as we gain momentum with our discretionary fund management portfolio service in the financial adviser sector.
“Matthew will help to drive our expansion as we seek to extend our institutional investment expertise to our discretionary fund management business and respond to the need for competitively priced, transparent investment solutions in the post RDR world.”
Lonsdale was replaced by former Legal & General Investment Management sales director Frank McGarry at Psigma in April.
McGarry is now director of business development and marketing at the firm, and is responsible for developing adviser relationships.
