BMO Financial Group announced Monday that it has completed the acquisition of New York-based investment banking firm Gerard Klauer Mattison.

Gerard Klauer Mattison will be known as Harris Nesbitt Gerard and will continue to offer U.S. equity research, sales and trading as well as a broad range of investment banking services.

BMO says the completion of the acquisition also marks the beginning of a new unified branding program across the United States.

As of today, BMO’s wholesale business in the U.S.. which includes more than six lines of business, will operate under the Harris Nesbitt name. Harris Nesbitt is already being used to identify the firm’s mid-market investment and corporate banking operation in Chicago and will extend to other wholesale lines of business in the U.S.

“Harris Nesbitt Gerard offers a recognized U.S. equity research, sales and trading platform in New York, Boston, Chicago and San Francisco. Combined with a seasoned investment banking practice, the firm has an established track record in the Consumer, Healthcare and Technology industries and will further accelerate our growth in key markets across the U.S.,” said William Downe, deputy chairman, BMO Financial Group and CEO, BMO Nesbitt Burns and Harris Nesbitt.

The acquisition of GKM strengthens BMO’s Canadian franchise by providing significantly expanded research on U.S. companies to Canadian institutional clients.