Quentin Soanes and Jeremy Davies officially joined the company as the final two pieces in a jigsaw first pieced together by TradeWinds last year.
Former Braemar executive Soanes brings his 36 years of sale and purchase experience to a team which includes his son and former Braemar colleague Dorian Soanes.
Davies adds his 30 years of know-how to the company to extend the former Braemar flavour further.
As TradeWinds has reported, Sterling started operations in September 2013 with Gavin McClure in the managing director's chair.
The sale and purchase specialist, based in the heart of London's uber-cool Clerkenwell district, also has Henry Kidd and Bertie Schiff on the payroll.