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About

Leadership

JG Development is governed by a board of directors and guided by shared and divisional leadership teams. Together, they drive continued growth in the best interest of our employee owners  

Board of Directors

Chairman

  • Jeff Grundahl

Directors

  • Mary Grundahl
  • Matthew Pletzer
  • Stephen DiTulio 

Shared and Divisional Leadership

  • CEO Mary Grundahl
  • Controller Susan Sowatzke
  • Marketing & Communications Director Brescia Berg
  • Supreme Structures Vice President Mike Trapino
  • Brio Design Homes Sales Manager Joel Geissbuhler
  • Brio Design Homes Operations Manager AJ Benik

History

Chairman Jeff Grundahl founded JG Development in 1990 at age 19. The company initially focused on residential building; Jeff and CEO Mary Grundahl, who joined the company in 2005, led its growth into commercial construction both organically and through three acquisitions in 2008, 2011 and 2024. JG Development launched new residential construction brands in 2015.  

The company transitioned to 100 percent employee ownership between 2017 and 2024. 

In 2025, residential operations unified as division Brio Design Homes, and commercial operations unified as division Supreme Structures. 

Careers

Our team is the key to our success. We are committed to creating a workplace and jobsites where our values are encouraged and recognized.

Benefits and Employee Ownership 

We offer competitive pay and benefits including health, dental, vision, life, short-term and long-term disability insurance, flexible spending plans, PTO and holiday pay, 401(k) and our Employee Stock Ownership Plan (ESOP).

We are 100% employee owned, so employees share the company’s financial rewards and contribute to a positive, enjoyable company culture.

We offer high-quality training and resources through internal experts and in partnership with industry organizations.

We care about each individual member of our team. 

Opportunities 

We invite you to review current openings at Brio Design Homes and Supreme Structures on their websites: 

We are currently recruiting qualified candidates for the following role:

If you’d like to join JG Development, please contact us.