Our Mission: The Hillsborough/Orange County Chamber of Commerce is the primary voice for member-business development and economic growth through innovative community collaboration. Our Vision: The Hillsborough/Orange County Chamber of Commerce is region's first choice and primary advocate for the business community. What Does the Chamber Do? The Chamber of Commerce is the voice of the business community in Hillsborough and Northern Orange County. Membership in the Chamber of Commerce lends extra credibility to your concerns about government and issues surrounding the community.