Mackin Engineers & Consultants

Founded in 1960 by Italo (Ody) Mackin, Mackin Engineers & Consultants has proudly served clients across Pennsylvania and the surrounding Tri-State area for more than 65 years. While our foundation is in civil engineering, we’ve grown into a multi-disciplinary consulting firm offering services in traffic engineering, landscape architecture, planning, and more. Today, our work is guided by CEO Zach Olawski and President Bill Harris, PE, CBSI, who lead a team of experienced professionals dedicated to creating lasting value for our clients and communities. As a third-generation, family-owned firm, Mackin is 65 Years Strong and Built to Last. We pair Big Firm Capabilities with a Small Firm Feel, ensuring that every client has Direct Access and Real Connections to our leadership. We believe in a hands-on approach—our President and CEO remain actively engaged and accessible throughout every project. Our purpose remains the same after three generations: to deliver engineering services that create safe and healthy spaces in the communities where we live, work, and play. We stay ahead of the curve through our commitment to advanced technology, ongoing professional development, and a deep understanding of the communities we serve. Mackin is headquartered near Pittsburgh International Airport, with additional offices in Harrisburg and West Virginia. Wherever you are, we’re ready to partner with you. Pittsburgh Office (Corporate Office): 103 Technology Drive; Suite 200 Pittsburgh, PA 15275 p: 412.788.0472 f: 412.787.3588 Harrisburg Area Office: 300 Corporate Center Drive Suite 304 Camp Hill, PA 17011 p: 717.774.8900 f: 717.774.5445 West Virginia Office: 834 Main Street Suite A Follansbee, WV 26037 p: 304.394.3040 For more information: email: info@mackinengineering.com website: