KeyBank has named a top executive to its New England C-suite.

The Cleveland-based bank said Mark Williams will take on the role of business banking leader for the New England market.
He will oversee the business banking sales teams in markets in Maine, Vermont, Connecticut and Massachusetts.
Previously, Williams was chief growth officer at Lewiston-based Androscoggin Bank, Maine’s eleventh-largest bank by assets, according to the 2026 Mainebiz Book of Lists.
He launched his career at Wells Fargo, where he spent 16 years in various roles of increasing leadership responsibility.
Williams lives in Portland with his wife, five children and three dogs.
Williams joins a Maine-based executive team that includes Tony DiSotto, KeyBank’s Maine market president who also oversees the East region for Key Private Bank; and Colin March, KeyBank’s commercial banking leader for Maine and the East region. DiSotto also oversees business, philanthropic and sponsorship efforts across the state.
“Mark’s experience, expertise and passion for serving clients will continue to advance the growth of our business in our New England markets,” said Renae Nixon, East region business banking executive at KeyBank. “His success developing and executing strategy, as well as supporting and elevating teammates, make him a great addition to our team.”
KeyBank, with assets of $191 billion, ranks No. 5 among banks with the largest market share in Maine. In the Pine Tree State, the bank has close to $2.8 billion in deposits, or just over 6% of the market, and 18 offices, according to the 2026 Mainebiz Book of Lists.