They previously produced about $1 million in revenue while at Morgan Stanley, according to Merrill Lynch.
Advisers on the Move: Morgan Stanley's 2014 adviser departures
Both are industry veterans.
Mr. Bromberg began his career in 1995 and had been at Morgan Stanley since 2007, according to records with the Financial Industry Regulatory Authority Inc.
Mr. Gerschel started in financial services in 2002 and had been at Morgan Stanley since 2010, records show.
At Merrill Lynch they will report to Michael Simonds, complex manager for the Rockefeller Center Complex.