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Architecture and PlanningMinnesota, United States1001-5000 Employees

ISG is a multidisciplinary architecture and planning firm based in Mankato, Minnesota, with a history spanning more than five decades. The company is 100 percent employee-owned and focuses on building trusting relationships with clients, stakeholders, and the community, while delivering diverse knowledge and broad perspectives through collaboration across disciplines. Serving multiple markets, ISG provides creative problem-solving grounded in a collaborative approach, aiming to meet client needs with a comprehensive understanding of design and planning considerations.

Established in the architecture and planning industry, ISG emphasizes an in-house, collaborative model that leverages varied disciplines to support project outcomes for its clients. The firm operates from its headquarters in Mankato and positions itself as a locally rooted firm with a broad, multi-market reach, reflecting its long-standing presence and ownership structure.

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