The Havre Chamber of Commerce of Havre, Montana, was established in 1928. Records (1936-1984) include general correspondence; inter-office correspondence; financial reports and budgets; minutes of the board of directors and executive committee; organizational materials; printed materials; miscellany; and clippings.

Helena First, Inc. was incorporated in 1967 with the goal of promoting and participating in the economic development of Helena. The records (1965-1990) consist of correspondence, minutes, project and subject files, and organizational materials. The major project of the organization was the building of the TraveLodge Motel (later Park Plaza Hotel).

Project Files of the Montana Department of Highways Construction Bureau.

Montana Department of Transportation, Materials Bureau consist of Pavement Management System files.

Records (circa 1880-1947) of Montana Power Company predecessor companies consist of correspondence, financial records, legal documents, and minutes of many electric power, light, water, street railway, townsite, realty, and land companies around Western and Central Montana.