London advisory boutiques Robey Warshaw Associates and Zaoui & Co, which have been at the forefront of the 2014 M&A wave, have both added to their London ranks with hires from Morgan Stanley.

Robey Warshaw, the London investment banking boutique run by ex-Morgan Stanley dealmaker Simon Robey and former UBS rainmaker Simon Warshaw, has hired Daniel Zumbühl, according to the UK's Financial Services Register. A person familiar with the firm confirmed the hire.