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Employee-owned engineering and design firm founded in 1956, working across transportation, water resources, federal facilities, and land development with offices nationwide.
Ayres Associates
Employee-owned civil engineering and consulting firm, founded in 1959, delivering infrastructure planning, design, and construction services across seven US states.
Ayres Associates is an employee-owned civil engineering and consulting firm founded in 1959. The company employs more than 300 employee-owners and was named a Top Workplace by USA TODAY in 2025 and 2026. It works with communities, government agencies, and private companies on infrastructure projects, combining local expertise with national capabilities.
The firm's technical work spans civil and municipal engineering, transportation design, structural design and inspection, river engineering and water resources, environmental services, geospatial technologies, landscape architecture, and subsurface utility engineering. Services cover the full project lifecycle, including planning, design, funding, and construction support, alongside a stated commitment to sustainable design practices.
Ayres Associates operates in seven states: California, Colorado, Florida, North Carolina, Minnesota, Wisconsin, and Wyoming, with a presence across the Midwest, Southeast, and West Coast. The company is headquartered in Eau Claire, Wisconsin.
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