BDT & Company International was incorporated in Britain on Aug. 10, according to a filing in Companies House.
In Europe, BDT has already advised on some high profile transactions. Together with Morgan Stanley <MS.N>, it advised Exor SpA, the investment vehicle of Italy's Agnelli family, on its $6.9 billion acquisition of reinsurer PartnerRe.
After the PartnerRe deal was agreed in August, Trott hired Morgan Stanley co-head of mergers and acquisitions for the Americas, James Head, who left the U.S. investment bank in October.
Head will be based in New York helping Trott establish BDT's brand further among Wall Street clients, two sources said.
BDT also co-invested and advised German investor Joh A Benckiser (JAB) in 2013 on the acquisition of Dutch coffee company Douwe Egberts which later merged with Mondelez's coffee business to create Jacobs Douwe Egberts.
Trott is looking for a senior and seasoned dealmaker who has strong relationships with high net worth individuals across Western Europe, to lead the London office, according to another source.
Trott's boutique will need to position itself in a crowded market alongside the likes of Robey Warshaw, the tiny Mayfair advisory firm which has landed the two biggest merger deals of the year, clinching key roles for UK brewer SABMiller and oil and gas firm BG.
BDT is planning to expand at the same time as former Morgan Stanley rainmaker Paul Taubman is looking to aggressively hire at his own boutique firm PJT Partners <PJT.N>. Earlier this year PJT hired several senior European dealmakers for its own office in London.
BDT is ranked 66th in the M&A league tables so far this year, having advised on three deals worth $14.2 billion dollars, according to Thomson Reuters data. That compares with 108th position at the same time last year. ($1 = 0.9369 euros)