Welcome to the O'Connor Companies web site. Founded in 1904, we have developed a solid reputation of excellence - in quality, reliability and integrity. O'Connor Constructors provides construction management and general contracting services to institutional, commercial and private industries. O'Connor Corporation is a major provider of maintenance, repair, instrumentation and new installations for power generation and industrial facilities throughout the Northeast. The latest addition is O'Connor Safety Corp which is committed to protecting employees, the public and our client's personnel, facilities and equipment from the danger of hazards found at the worksite. In addition, our sister company, Beacon Piping Company, provides industrial, process, mechanical and laboratory piping to an impressive roster of clients.