Barry Isett & Associates is an employee-owned, multi-discipline engineering and consulting firm headquartered in Allentown, Pennsylvania, with eight additional offices in communities throughout eastern and central Pennsylvania.
Isett provides single-source responsibility and start-to-finish project involvement in the design, construction, operation, maintenance, renovation, and replacement of facilities.
We’re proud of the ongoing relationships and high retention rate we have developed with clients in different fields: private industry; Fortune 500 companies; residential and commercial real estate; federal and state agencies; municipalities; healthcare providers; educational institutions; and more.
Get to know our team.
Barry Isett founded the firm in Lehigh Valley in 1977 to provide structural and civil engineering and surveying services to clients. Today, with a staff that has grown to more than 250+ associates, Isett continues to provide the same tried and true service to help clients achieve their goals.
The Design Division encompasses Civil, Structural, Mechanical / Electrical / Plumbing (MEP) & Fire Protection, and Project Management & Construction Services groups, led by John Lewis, PE. Integrating these services provides seamless communication for architects and design/build project owners.
The Public Division incorporates Code Inspection & Plan Review Services, Municipal, Water & Wastewater Engineering, Transportation, Landscape Architecture, and Grants Services under a comprehensive umbrella led by Matt Walter, MCP, CFM. We understand that municipalities have an overwhelming amount of responsibility. The Isett team’s goal is to share in that responsibility and lighten the burden.
The Field Division includes Construction Materials Testing, Environmental Consulting, Survey, Geotechnical Engineering, and Forensic Building Investigation, headed by Chris Kotch, PG. The Field Division serves as your boots on the ground before, during, and after construction. From initial site investigations through construction, the Field Division assists clients every step of the way.
Isett’s locations in Allentown, Wyomissing, Phoenixville, Furlong, Mechanicsburg, Hazleton, Olyphant, Wilkes-Barre, and Stroudsburg serve clients throughout the Mid-Atlantic region.