Jeffrey Callahan, CPA

Information Systems Manager

Jeff has been with KM&M since 1997. He provides accounting, tax, and compliance services for small businesses in a variety of industries including rental real estate, construction and restaurants. He also maintains internet support, networking and supervises security operations and oversees all resources and systems within the firm.


  • Jeff received his Bachelor of Science in accounting from the University of Massachusetts Lowell.
  • Member of the Massachusetts Society of Certified Public Accountants, and the American Institute of Certified Public Accountants.