The St. Clair County Chamber of Commerce is the newest affiliate of the Southeast Michigan Chamber of Commerce network, launching in April 2026. We're a new home for businesses across the Thumbcoast — from Port Huron and Marysville to St. Clair, Marine City, Algonac, and the communities in between.
We exist to help local businesses connect with one another, grow, and invest in the places they call home. Whether you're an established employer or just getting started, the chamber is a place to build relationships and find support.
Our Mission: To build a thriving, connected business community across St. Clair County — through networking, advocacy, and shared opportunity that lifts up local businesses and the communities they serve.
The chamber exists to serve the businesses and communities of St. Clair County. Here's how we put that into practice.
Regular events, ribbon cuttings, and gatherings that bring the local business community together.
Visibility, referrals, and marketing opportunities that help members reach new customers.
A unified voice for local business on the issues and opportunities that matter.
Resources and guidance to help members navigate challenges and grow.
A lasting commitment to the communities of St. Clair County and the wider region.
As an affiliate of the Southeast Michigan Chamber of Commerce, our members tap into a regional network of chambers, programs, and partners that extends well beyond St. Clair County — multiplying the connections and opportunities available to local businesses.
Founding memberships are open now ahead of our 2026 launch.
Become a Founding Member© 2026 St. Clair County Chamber of Commerce. An affiliate of the Southeast Michigan Chamber of Commerce.