| Business | Phone |
| 29 Concord Avenue Condominium 29 Concord Ave, Cambridge 2138 | (617) 491-1709 |
| 432 Columbia Street Condo Trst 432 Columbia St # 14, Cambridge 2141 | (617) 577-1708 |
| 931 Massachusetts Ave Assoc 931 Massachusetts Ave, Cambridge 2139 | (617) 576-6639 |
| 96 98 Ellery St Condo 98 Ellery St, Cambridge 2138 | (617) 876-3791 |
| Windsor Tap Condo Llc 94 Hampshire St, Cambridge 2139 | (617) 547-3035 |
| University Green Condominiums 130 Mount Auburn St, Cambridge 2138 | (617) 492-5107 |
| Thomas Graves Landing Condo 4 Canal Park, Cambridge 2141 | (617) 225-0743 |
| Bancroft Court Condo 16 Ware St, Cambridge 2138 | (617) 441-9058 |
| Barrington Court Condominiums 988 Memorial Dr, Cambridge 2138 | (617) 354-1845 |
| Bay Square Condominium Lobby 950 Massachusetts Ave, Cambridge 2139 | (617) 547-7722 |
| Esplanade Management Office 75 Cambridge Pkwy, Cambridge 2142 | (617) 494-8099 |
| Brickworks Condominiums 310 Rindge Ave, Cambridge 2140 | (617) 492-9800 |
| Sherman St Condo Tr 147 Sherman St, Cambridge 2140 | (617) 576-9479 |
| Rivercourt Condominiums 10 Rogers St, Cambridge 2142 | (617) 494-8844 |
| Residence At Charles Square 975 Memorial Dr, Cambridge 2138 | (617) 868-9066 |
| Pavilion Condominiums 170 Gore St, Cambridge 2141 | (617) 225-0405 |
| Peabody Court Condo 43 Linnaean St, Cambridge 2138 | (617) 868-5567 |
| Oxford Courts Condominium 7 Arlington St, Cambridge 2140 | (617) 491-1700 |