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History
Culture
Leadership
Colm O’Connor started O’Connor Estimating Services in 1982 without any clients or operating capital. He worked to develop trust, and provide accurate estimates. That framework of customer relations and useful work product still defines who we are today.

The company became O’Connor Construction Management, Inc. in 1985. This evolution into scheduling, project controls, and owner’s representative services recognized opportunities beyond cost management. Expert witness and construction audit practices were later added.

Our commitment to satisfied clients is demonstrated by the fact that more than 87% hire us on a repeat basis. With over 7,000 projects, we also hold a record of zero litigation as a result of our services. More than 34 years later, O’Connor is still a trusted advisor making our clients look good.

Committed to Quality. Delivering Success.

photo of colm o'connor
“Time after time clients and associates approach me and express thanks for how easy it is to work with us. It takes a team to construct a project and we are a team player.”

Colm O’Connor, Founder