| Business | Phone |
| Mirant Corp 215 1st St # 215, Cambridge 2142 | (617) 577-0019 |
| Mirant Kendall Station 265 1st St, Cambridge 2142 | (617) 868-2798 |
| Cambridge Electric 46 Blackstone St, Cambridge 2139 | (617) 497-1236 |
| Northeast Hydroelectric Inc 4 Arlington St, Cambridge 2140 | (617) 492-9240 |