A · B · C · D · E · F · G · H · I · J · K · L · M · N · O · P · R · S · T · U · V · W · Z
| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| Patricia A Kelly | Tiverton, RI | — | Designer (Class II) | D2106 |
| Patricia A Kelly | Tiverton, RI | — | Designer (Class IV Soil Evaluator) | D4047 |
| Patricia K Walker | West Greenwich, RI | — | Designer (Class III) | D3048 |
| Patrick A Czerwien | Cranston, RI | — | Installer | L1605 |
| Patrick D Masson | Wakefield, RI | — | Installer | L1619 |
| Patrick Geddes | Providence, RI | — | Installer | L2036 |
| Patrick J Aubin | Warren, RI | — | Installer | L0647 |
| Patrick J Freeman | Exeter, RI | — | Designer (Class III) | D3138 |
| Patrick S Diffley | West Greenwich, RI | — | Installer | L1558 |
| Patriot Services | Bridgewater, MA | — | Septage Hauler | 928 |
| Paul A Ludovici | Johnson, RI | — | Installer | L1686 |
| Paul A Medeiros | Seekonk, MA | — | Installer | L1334 |
| Paul D Carlson | North Smithfield, RI | — | Designer (Class III) | D3147 |
| Paul D LeBlanc | Westerly, RI | — | Designer (Class III) | D3050 |
| Paul E Desrosiers | Tiverton, RI | — | Designer (Class I) | D1010 |
| Paul E Desrosiers | Tiverton, RI | — | Installer | L1326 |
| Paul L Detonnancourt | Harrisville, RI | — | Installer | L1423 |
| Paul O Filippi | Block Island, RI | — | Installer | L1480 |
| Paul R Mumford | Saunderstown, RI | — | Installer | L0601 |
| Paul R Mumford & Son Cesspool | Saunderstown, RI | — | Septage Hauler | 334 |
| Paul R Mumford Jr. | Saunderstown, RI | — | Designer (Class I) | D1161 |
| Paul R Mumford Jr. | Saunderstown, RI | — | Installer | L1458 |
| Paul Surabian | Smithfield, RI | — | Installer | L0584 |
| Pee Palace Potty, LLC | North Attleboro, MA | — | Septage Hauler | 981 |
| Peter A Gervasio | North Scituate, RI | — | Designer (Class I) | D1123 |
| Peter A Gervasio | North Scituate, RI | — | Installer | L0854 |
| Peter A Ialongo | Cranston, RI | — | Installer | L1790 |
| Peter A King | Clayville, RI | — | Installer | L1077 |
| Peter Calcagni | Cumberland, RI | — | Installer | L0444 |
| Peter DeTerra | Fairhaven, MA | — | Installer | L1129 |
| Peter J O'Rourke | Wakefield, RI | — | Designer (Class IV Soil Evaluator) | D4097 |
| Peter J Sacco Jr. | Westerly, RI | — | Installer | L1456 |
| Peter J Sacco Sr. | Westerly, RI | — | Designer (Class I) | D1111 |
| Peter J Sacco Sr. | Westerly, RI | — | Installer | L0062 |
| Peter M Fusaro | Westerly, RI | — | Installer | L1736 |
| Peter T Abbenante Jr. | North Kingstown, RI | — | Installer | L1943 |
| Peter W Brennan | Portsmouth, RI | — | Designer (Class I) | D1127 |
| Peter W Brennan | Portsmouth, RI | — | Installer | L0941 |
| Peter W Lachapelle | Tiverton, RI | — | Installer | L1821 |
| Philip A DeBartolo | Westerly, RI | — | Installer | L1894 |
| Philip J Pucino | Saunderstown, RI | — | Installer | L1938 |
| Philip T Mitchel | Ivoryton, CT | — | Installer | L1986 |
| Pietrangelo DeGiacomo | Ashaway, RI | — | Installer | L1708 |
| Pjeter Dajti | INC Exeter, RI | — | Installer | L2027 |
| Podgurskicorp Corp | Canton, MA | — | Septage Hauler | 992 |
| Pro Drain Svs of Southern NE | Bradford, RI | — | Septage Hauler | 969 |
| Pure Flo, LLC | Middleboro, MA | — | Septage Hauler | 995 |
A · B · C · D · E · F · G · H · I · J · K · L · M · N · O · P · R · S · T · U · V · W · Z