Island Mountain Development Group (IMDG) operates with a singular dedication to creating a self-sustaining economy for the Fort Belknap Indian Community. Enterprise investments on and off the Fort Belknap Reservation contribute to this goal.

Presently, more than 300 people are employed by IMDG and its subsidiaries, the majority of which are Tribal Members. Last year, payroll and benefits reached a milestone, exceeding $23.1 million.

Key Industries

A New Paradigm of Business Expansion

With a relentless focus on growing profitability for reinvestment, Island Mountain Development Group operates at the forefront of emerging market opportunities.

The Leadership Team continues to identify new business sectors which align with the company’s strategic objectives to add to the portfolio. Revenues will help expand support in language preservation, childcare, wellness, and homeownership on the reservation.

Growing a Diverse and Powerful Portfolio for Reinvesting in FBIC



353 Old Hays Rd.
Hays, MT 59527


1537 Avenue D
Billings, MT 59102

© 2023 Island Mountain Development Group