Oxford Street Realty
- Neighborhood realtor providing property management service, rentals, and sales. Site includes community links and vintage photographs of the neighborhood.
- http://www.oxfordstreetrealty.com/

Keen Development Corporation
- Real estate development firm specializing in historic preservation and adaptive reuse for the creation of affordable housing, as well as affordable live/work space for artists.
- http://www.keencorp.com/

Skyline Realty
- Sales and rentals. Site includes a searchable online database.
- http://skylinerealty.com/

Century 21 Avon Real Estate
- Harvard Square agency offering apartment rentals and home sales.
- http://www.century21avon.com/