ISG Offices

Architecture + Engineering Services in Philadelphia, PA

Address

1218 Chestnut Street

7th Floor

Philadelphia, PA 19107

Call Us

215.545.0121

Monday-Friday

8:00 a.m.-5:00 p.m.

ISG Philadelphia

In The Community

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ISG Recognized as a 2025–26 Emerging Professional Friendly Firm for the Fourth Consecutive Cycle

Industry Insights

Employee Owners

ISG Opens Durham Office to Strengthen Presence and Drive Growth Across the Triangle

This strategic expansion strengthens ISG’s ability to serve clients, positively impact communities, and accelerate growth throughout the Triangle region.

Community

Press Releases

ISG Celebrates Employee Ownership Month by Launching the ISG Impact Fund

ISG launches the ISG Impact Fund to empower employee-driven philanthropy and strengthen communities. Celebrating Employee Ownership Month, the fund supports nonprofits aligned with ISG’s core values.

Community

Employee Owners

Press Releases

Featured Projects

No matter the project, we are here for it. Our partnerships and client relationships are a testament to the projects we have designed with our clients. Take a look!

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