If you're thinking of adding group benefits to your company, there are a lot of good reasons to put your Chamber membership to work for you. Not the least is exclusivity: only members have access to the Chambers of Commerce Group Insurance Plan?. The Chambers Plan also offers you a quality, customized product with features you aren't likely to find elsewhere. Here are five of the most frequently cited reasons companies like yours join the program. No Minimum Firm Size; No Industry Restrictions; Guaranteed Approval; Guaranteed Renewable; Rate Stability. Your Chambers Plan representative is ...