KeyBank announced the appointment of Thomas Tierney as a business banking relationship manager for the Western Massachusetts market. In this role, Mr. Tierney will manage commercial relationships for businesses with annual revenues ranging from $3 million to $20 million. In addition to supporting the bank’s existing client relationships. Tierney will be responsible for generating new business banking opportunities, and expanding commercial loans and deposit relationships for the bank. He will report to Allison Standish-Plimpton who serves as senior vice president and business banking sales leader for KeyBank’s Connecticut and Western Massachusetts markets.