Sonoma Underground is a certified Minority Business Enterprise (MBE) dedicated to building tomorrow’s infrastructure through Safety, Quality, and Culture. For over 20 years, we’ve specialized in underground utility and electrical construction, supporting critical infrastructure projects and data centers throughout the Chicagoland area.

Our success is driven by a combination of organic growth and a strategic business development approach, resulting in consistent year over year expansion. Clients continue to choose Sonoma Underground because we deliver on our commitments: finishing projects on time, maintaining the highest safety standards, and providing exceptional quality. We take pride in our ability to adapt to complex challenges, communicate effectively, and foster strong partnerships that stand the test of time.

At Sonoma Underground, we believe infrastructure is more than construction, it’s about creating a foundation for thriving communities and a better future.