- Cleveland Park Cooperative
- Community Systems Inc
- Daro Realty Inc
- Devonshire Inc
- Douglass Management Inc
- EJF Real Estate Svc
- Federal Realty
- Kriegsfeld Corp
- Murray Cyrus Estate
- NDC Real Estate Management
- Northwest Asset Management Inc
- Rock Creek Group LLC
- Thomas D Walsh Inc
- Waggaman Corp
- Washington Hill
