We are O'Donnell & Naccarato, Philadelphia's oldest & largest consulting structural engineering firm specializing in engineering, facade restoration, project management, parking consultation, & claims consultation. Over the past 50+ years we've applied our expertise to thousands of projects all along the East coast. At O'Donnell & Naccarato, we design 100% of our projects utilizing Building Information Modeling. Since 2006 we've created more than 11MSF of BIM structures.
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