I'm looking at a list of top investment sales firms in NYC, and Cushman &amp; Wakefield dominates each borough, with twice as much sales volume as 2nd place. What makes them such a strong brokerage?
https://therealdeal.com/issues_articles/new-york-investment-sales-ranking/

Everyone 2nd place and down has a more or less even distribution of  sales volume, but when you look at Cushman &amp; Wakefield in 1st place, they have *twice* as much sales as second place in every borough (Bronx is closer to 1.5x). How are they so strong to have twice as much sales as the runner-up and even more so everyone else?
[{"id": "ex3kjhb", "text": "The guys at the top must be crushers.  \u201cEvery day I\u2019m hustling\u201d", "replies": [], "depth": 1}, {"id": "ex3onfy", "text": "From acquiring their competitors (Massey Knakal)", "replies": [], "depth": 1}, {"id": "ex44ros", "text": "Lots of agents. M&amp;M, JLL, and Meridian run the show!", "replies": [], "depth": 1}]