Our History

O'Leary Group, Inc., roots date back to 1955 as The Edward J. O'Leary Company as a Butler Builder . Since then our company has been involved in the planning, design and construction of nearly two thousand commercial projects. Our services are available throughout New England and Eastern United States.The quality and breadth of our work is evident at companies such as Cain's Foods, Coca Cola Bottling Co., US Geological Service, Department of the Interior, Excel Dryer Corp., Smith College, Hampshire College, K & M Electronics, J & E Precision, Monsanto Chemical Company, Proctor & Gamble Company, Renz America Corp., WWLP-TV22, National Evaluation Systems and Convergent Prima to name just a few. Our buildings are home to variety of business types including but not limited to manufacturing, warehousing, medical, office, retail, education, institutional, athletic, recreational, financial and business services, distribution, investmentand multi-user buildings.