Hamann Construction Company

ConstructionWisconsin, United States11-50 Employees

Hamann Construction Company is a regional general contractor based in Manitowoc, Wisconsin, with roots dating back to 1933. It collaborates with owners and subcontractors to deliver quality projects on time and on budget, underscoring craftsmanship and core values such as commitment, integrity, and teamwork. The firm offers a broad suite of services—from general contracting and construction management to design-build and build-leases—along with supporting functions like estimating, purchasing, and scheduling, and it handles demolition and renovation work as well as specialty concrete.

Positioned as a design-build-oriented contractor, Hamann employs pre-engineered building capabilities to offer cost-effective, flexible delivery from concept to completion. It also provides maintenance and specialty services—repairs, modifications, carpentry, and heavy concrete work—after construction and offers an annual door audit service to evaluate facility access. In 2026, the company expanded its facilities in Manitowoc and began construction on the Eck Industries Employee Center, signaling continued growth in its regional market.

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