MacArthur Co. provides structural engineering and building design solutions, including structural analysis, design, and project management, throughout the Midwest.
Operator computes a Health score every night at 2 am HST. It is the one number that tells you if this shop is winning, losing, or steady. Here is how MacArthur Co. broke down on May 2, 2026.
Operator ranks every building supply store in Duluth every night at 2 am HST using reviews, response rate, and local market share.
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