John E. O'Donnell & Associates, Inc. is a municipal consulting firm specializing in tax assessing, tax equalization (revaluation), and tax mapping. The company is located in New Gloucester, Maine. The company was founded in 1960, and incorporated in 1966, by John E. O'Donnell Jr.
John E. O'Donnell & Associates has completed over 125 original tax mapping programs in New England. The company has completed 50 tax equalization (revaluation) programs. 30 Maine towns use O’Donnell & Associates for annual tax assessing work.