Dick Anderson Construction (DAC) is a General Contractor/Construction Management firm with offices in Helena, Great Falls, Bozeman, and Billings, Montana and Sheridan, Wyoming. DAC has grown over the past 40 years through building strong relationships with our clients and applying hard work, sound business ethics, detailed cost management, and unparalleled attention to quality in everything we do. Our reputation is second-to-none, supported by a long list of satisfied clients throughout the Western U.S.