He acquired the Jackson Hole Mountain Resort in Teton Village, Wyoming for his family in 1992, and served as Chairman until February 2024.

[6] Following this divestiture, he became President of the family's asset management company, Kemmerer Resources Corp., located in Chatham, New Jersey.

[17] Kemmerer sold the Jackson Hole Mountain Resort on February 1, 2024, to close friends, local residents and Board members Eric Macy and Mike Corbat.

[18][19][20] Kemmerer continues to serve on the Board of Directors and Executive Committee, and function in a Senior Advisory role.

Founded in 1927, the CM is one of the oldest continually-operating guest ranches in the U.S.[21] Total improvements to plumbing, electrical, flooring and roofs have been made to most structures, while maintaining its status on the National Register of Historic Places.

Patagonia, Inc., the sportswear company, took exception to Kemmerer's personal donation and withdrew its products from the Jackson Hole Mountain Resort.

[22] Kemmerer and his family also owned the master-planned golf community of Comanche Trace in Kerrville, Texas[23] from 1998 – April 2022.

[27] With state matching funds pushing the impact to over $6 million, the Institute will advance innovation, education and economic growth in tourism, Wyoming’s second-largest industry.

[31] In addition to their primary residence in Jackson, the Kemmerers maintain homes in Madison, New Jersey, and Vero Beach, Florida.