"Quite simply, we're out of space," says Blaylock chairman and CEO Ronald Blaylock. "Our workforce has grown substantially in the past year, and our current space wasn't big enough to house comfortably the additional staff we've take on, let alone the new people we plan to hire in fixed income and asset management."

The class A building on the corner of Park Ave. and 53rd St., was recently acquired by Boston Properties. The price of the lease was undisclosed, but a spokesperson for Blaylock tells GlobeSt.com that the firm intends to stay its new 15th-story location for at least another 14 years.

Cushman & Wakefield represented Blaylock in its lease negotiations. Aside from New York City, the company also has offices in Boston and Atlanta, with plans to open a new Chicago branch later this year. Blaylock & Partners is an institutional brokerage firm specializing in equity and fixed income research, sales and trading.