| Business | Phone |
| Rival 285 Harvard St # 206, Cambridge 2139 | (617) 547-1498 |
| Hawthorn Mayo Inc 41 Hawthorne St # 24, Cambridge 2138 | (617) 868-8004 |
| Square Peg Marketing Communications & Design 1770 Massachusetts Avenue, No. 281, Cambridge 02140 | (617) 639-0600 |