ISG Offices

Architecture + Engineering Services in Green Bay, WI

Address
115 Pine Street
Suite 300
Green Bay, WI 54301
Call Us
920.434.2128
Monday-Friday
8:00 a.m.-5:00 p.m.
ISG Green Bay
Scenic views of the Fox River flowing north, and live music from the Juliet balcony during Fridays on the Fox.

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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