| Business | Phone |
| Black Dog Divers 31 Raynes Ave # 8, Portsmouth 3801 | (603) 431-3732 |
| Pickering Marine 7 Pickering Ave, Portsmouth 3801 | (603) 427-2824 |
| Substructure Inc Po Box 4094, Portsmouth 3802 | (603) 436-1039 |
| Wet Work Inc 105 Bartlett St, Portsmouth 3801 | (603) 433-4292 |