| Business | Phone |
| Cayuga Communications 44 Merrimac, Newburyport 1950 | (978) 463-9292 |
| Matter Communications Inc 172 State St, Newburyport 1950 | (978) 499-9251 |
| Integrated Communication 351 High St, Newburyport 1950 | (978) 499-0823 |
| Latitude Communications 29 Water St, Newburyport 1950 | (978) 465-0042 |