DC Chamber of Commerce (DCCC)
- http://www.dcchamber.org/
- Nonprofit membership organization dedicated to improving the climate for business in the District. Features membership information, member directory, calendar, programs and visitor and resident information.
DeKalb Chamber of Commerce
- http://www.dekalb.org/
- A business association that represents retail, commercial, industrial, service, agriculture, and not-for-profit businesses in the greater DeKalb Illinois area.
Delaware County Chamber Of Commerce
- http://www.delawarecounty.org/
- Business organization promoting community and economic development. Provides a directory of area towns and villages, with a guide to lodging, restaurants, recreational opportunities, and other attractions.
Delta Chamber of Commerce
- http://www.deltachamber.com/
- Non-profit organization working to create and maintain a prosperous environment for local business, industry and commerce. Includes member listing, news, and information about events.
Denver Metro Chamber of Commerce, Colorado
- http://www.denverchamber.org/
- Business advocate working to assure economic vitality and quality of life within the region, includes member directory, programs and services, visitor information, economic development, public affairs, and how to join.