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Our Leadership Team.

Meet the driving force behind our commitment to excellence - our exceptional team of leaders. At Mainstay, we believe that success is not just achieved; it's engineered. Get to know the people shaping our journey, each brining a unique blend of experience, passion, and dedication to our partners, clients and Mainstay team. And get to know our Core Values that guide us in every aspect of our work.

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Kelsey Addeo
Associate Project Manager,
Structural Engineering

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Pamela J. Assenmacher, PE
Principal,
Quality

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Michael Canalley, PE
Director,
Quality Control

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David F. Citro, PE
Director,
Civil Engineering

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Sean Marzolf, PE
Project Manager,
Civil Engineering

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Laura Hughes
CEO

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Matthew Barton, PE
Director, Civil Engineering
Raleigh, NC

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Leo Doyer, PE
Director,
Structural Engineering

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Justin H. Meillier, PE, CDT
Director,
Structural Engineering

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Christine Sciarrotta
Vice President,
Marketing

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Kurt Sponheimer, PE
Project Manager,
Structural Engineering

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Kevin Tatlow, PE
Project Manager,
Civil Engineering

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Matthew Brenfleck, PE
Associate Project Manager,
Structural Engineering

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Matthew E. Hilbush, PE
Founder

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Jacki Briggs, PHR
Vice President,
Human Resources

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Sherry Hoffman
Director,
Controller

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Justin T. Ruby, PE
Senior Principal

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Laura M. Ryan, PE
Project Manager,
Structural Engineering

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