Simplify Solutions—
Passionately Design the Future.

About Us

One Firm. Eleven Offices. Endless Solutions.


We exist to make a difference, to make tomorrow better than today. For our communities, our clients, and each other. ISG fosters strong collaboration across architecture, engineering, environmental, and planning disciplines—providing clients a diverse knowledge base. ISG’s flexibility makes it possible; our focus and innovative solutions make it happen.

Core Values

Change is the only constant. ISG embraces and influences change. We work to be better tomorrow than we are today.

ISG works with clients as a team that values each other, challenges each other, and builds each other up. Together, we make a difference.

We understand that respect is earned, not given. ISG works to earn your respect and consideration.

We are quick to respond. ISG proactively communicates and moves forward with a sense of urgency.

We are committed to understanding the context, needs, and goals of others so that we can better serve you. By thinking like our clients, we will make a positive difference in our local communities and beyond.

The ISG Difference

Contextual Design
Our user-centric design process delivers quality solutions that meet and exceed clients’ visions. Context considers all the factors beyond four walls to customize every project for the client—goals, culture, history, and best practices.

Alternative Analysis
A problem-solving partnership to guide projects by providing one option of exactly what the client is expecting and enhanced alternative options that may be more beneficial.

Better Decisions, Faster
Develop consensus sooner. Draw a sketch, investigate an idea, and agree before committing big resources on an errant path. We seek to foster a better-decisions mentality.

ISG on the Move

ISG Celebrates 50 Years of Business, Ready for 50 More

March 21, 2023 (Mankato, Minnesota) – ISG turns 50 years old in 2023. The firm of over 500 multi-disciplinary professionals, ranging from architects and designers to engineers, technologists, marketers, and project managers, now spans across four states across the upper Midwest with 11 offices.
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Environmental Firm to Host Southern Minnesota Lake Resources Conference

March 14, 2023 (Mankato, Minnesota) – ISG will host the inaugural Future of Southern Minnesota Lakes Conference on April 22, 2023, in Mankato, Minnesota. The conference will equip community members, lake associations, and lake stewards with the tools, approaches, and resources to care for the lakes of Southern Minnesota.
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ISG Moves Across the River to Support Growth and Enhance Client Services

September 13, 2022 (Waterloo, Iowa) – Building off of development momentum within the City of Waterloo, ISG is now the primary tenant of Art Bloc, a new mixed-use residential building overlooking the Cedar River in downtown Waterloo. ISG—a nationally recognized architecture, engineering, environmental, and planning firm—reimagined the second level interior, designing a state-of-the-art office build-out to facilitate collaboration and communication and improve operational efficiencies.
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ISG Welcomes Project Manager Marty Metcalf – Former Waterloo Community School District Facility Director

May 5, 2022 (Waterloo, IA) – ISG is excited to continue to build upon its PreK-12 facility planning strengths with the addition of former Waterloo Community School District Facility Director, Marty Metcalf. Bringing over 40 years of facility management experience, including the oversight and maintenance of 21 school facilities with over 10,000 students, Marty will collaborate with school districts in Iowa and across the Midwest to develop strategic and implementable long-range plans.
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