| Business | Phone |
| Warner Research Llc 86 Sherman St, Cambridge 2140 | (617) 995-2300 |
| Technalum Research 1 Broadway, Cambridge 2142 | (617) 621-7020 |
| Stax Research 359 Green St, Cambridge 2139 | (617) 873-9200 |
| Glycofi Inc 1 Cambridge Ctr, Cambridge 2142 | (617) 621-1120 |
| Cambridge Chemical Tech 585 Massachusetts Ave, Cambridge 2139 | (617) 868-0670 |
| Project-Defense Alternatives 186 Hampshire St # 3, Cambridge 2139 | (617) 547-4474 |
| Consortium On Financing Ed 238 Main St # 201, Cambridge 2142 | (617) 253-5030 |
| Point East Research 124 Mount Auburn St, Cambridge 2138 | (617) 576-5785 |
| D P Research 124 Mount Auburn St # 200n, Cambridge 2138 | (617) 576-5864 |
| Nuvios Inc 300 Technology Sq, Cambridge 2139 | (617) 444-1800 |
| Office Of Ergonomics Research 124 Mount Auburn St, Cambridge 2138 | (617) 576-5859 |