Since 1987, On Site Management, Inc. has been building some of the most exceptional residential, western ranch and light commercial projects in the Northern Rockies.

As General Contractors with a profound appreciation for authentic design and superior craftsmanship, OSM has earned the distinction for high quality, honest construction.

From rustic wood lodges to modern concrete and steel structures, OSM works intimately with clients and architects in a unique design-build relationship to insure that every project is held to the exacting standards of design, and spirit of place.

With established offices in Bozeman, MT and Jackson, WY, On Site Management’s distinctive work is found throughout Montana and Wyoming, including the resorts of Big Sky, Yellowstone Club, Moonlight Basin and Teton Village. OSM’s celebrated work can also be found throughout the Gallatin, Paradise and Big Hole Valleys.