Take part in sub-committees that represent your areas of interest.Learn about the community your business serves.Partnership with the Chamber and other local businesses to enhance each other’s mission/growth.We encourage businesses to join the Grapevine Chamber of Commerce to receive the following valuable opportunities: Additionally, we find it valuable to reach out to community members about our services through utilization of your Chamber Directory and Senior Service Resource Guide. Our partnership with the Chamber shows our commitment to the community. As one of the largest businesses in Grapevine, it is important for us to support the economic growth of Grapevine. “At Baylor Regional Medical Center at Grapevine, we have chosen to support the Grapevine Chamber of Commerce for a number of reasons.