| Century 21 Avon Real Estate: Harvard Square agency offering apartment rentals and home sales. |
| 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. |
| Metro Realty: Apartment and home sales and rentals. |
| Oxford Street Realty: Neighborhood realtor providing property management service, rentals, and sales. Site includes community links and vintage photographs of the neighborhood. |
| Skyline Realty: Sales and rentals. Site includes a searchable online database. |
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