The Worcester accounting firm of Greenberg, Rosenblatt, Kull & Bitsoli PC has promoted Luis N. Martinez to supervisor and Christopher J. Melendez to senior accountant.
Martinez has been with the firm for eight years. He lives in Athol and is a graduate of Bentley University.
Melendez is an Auburn resident and Nichols College graduate who joined the firm in 2006.
Other the past year, the firm has also added four members to its professional staff: staff accountants Mark Daniel and Amanda Colosi and senior accountants Nate Perchak and Maria Crowley.
