On Site Management, Inc.

On Site Management Inc. is a full-service general contracting firm engaged in the construction of architecturally unique residential and ranch projects of the highest quality. Since 1987, OSM has been building custom homes, western ranches, horse and cattle facilities, remodel projects, and light commercial structures in the Northern Rockies. With established offices in Bozeman, MT and Jackson, WY, OSM’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 Jackson Hole, Gallatin, Paradise, and Big Hole Valleys.