John O'halleran is a Accountants business in Hicksville, NY.
John O'halleran is a company that has been operational since 2001, offering products or services in the industry of Accountants. For additional details of the nature of this business, it is registered under with the SIC code 8721 and under the NAICS code 541211 ().
John O'halleran now supports a growing employee population of 1 to 4 and the business makes an estimated annual revenue of $50.000 to $99.999. The company can be reached for inquiries about B2B market variables and other concerns by contacting John Ohalleran by phone (315) 652-6551.
For added convenience and more information, John O'halleran also has a website at , and can be accessed and followed through the social media outlets Twitter and Facebook . Visit John O'halleran’s physical single location at 400 South Oyster Bay Road # 304, Nassau, New York or locate it via the coordinates .