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Cortana Construction Company is a full service construction firm, serving Santa Rosa and the Midwest by delivering effective building solutions to clients through design build, general contracting and construction management methods. Headquartered in Santa Rosa, we provide complete architectural engineering services as well as service teams which deliver specialized facility maintenance, steel and home modification services.

We utilize cutting-edge design and communication technology to deliver creative, sustainable and cost effective solutions from office to field. We view ourselves as a single-source solution provider serving a wide-ranging spectrum of clients such as pharmaceutical manufacturers and food processors, healthcare facilities, commercial and retail, office buildings, K-12 and higher education facilities, non-profits; and community places of worship.


We connect expertise across services, markets, and geographies to deliver transformative outcomes. Worldwide, we design, build, finance, operate and manage projects and programs that unlock opportunities, protect our environment and improve people’s lives.