First Landmark Bank will acquire Midtown Bank & Trust Co., both metro Atlanta banking companies announced Monday.

The deal, which the banks call a merger of equals, will create banks under three brands: First Landmark Bank, Midtown Bank and Bank of Sandy Springs.

The merger was announced the same day Atlanta-based State Bank Financial Corp. announced it was acquiring Bank of Atlanta and its parent for $25 million.

First Landmark and Midtown did not provide a value for their deal. On a pro forma basis, the combined company will have about $411 million in assets.

Terry DeWitt, president and CEO of First Landmark, said the combined company, which will have nearly 80 employees, will “create a strong franchise with substantial prospects for future growth.”

First Landmark’s shareholders will own 52.25 percent of the combined company’s stock and Midtown Bank’s shareholders will own 47.75 percent.