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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| Bain R Transue | Block Island, RI | — | Installer | L1771 |
| Bay State Sewage Disposal Inc | Lakeville, MA | — | Septage Hauler | 843 |
| Benjamin A Gadoury | Coventry, RI | — | Installer | L2060 |
| Benjamin J Caito | Warwick, RI | — | Designer (Class III) | D3149 |
| Benjamin J LaMountain | Oxford, MA | — | Installer | L1774 |
| Blake A Ruggieri | North Kingstown, RI | — | Installer | L1988 |
| Bradford A Smith | Foster, RI | — | Installer | L2026 |
| Brandon B Faneuf | Warwick, RI | — | Designer (Class IV Soil Evaluator) | D4059 |
| Brandon Fish | Wakefield, RI | — | Installer | L1373 |
| Brandon M Blanchard | Lincoln, RI | — | Designer (Class III) | D3101 |
| Brendan M Friend | Wyoming, RI | — | Installer | L1787 |
| Brian D Snow | North Scituate, RI | — | Installer | L1844 |
| Brian D Woodhead | Portsmouth, RI | — | Installer | L1672 |
| Brian M DaPonte | Warren, RI | — | Installer | L1836 |
| Brian P Brown | Hope, RI | — | Designer (Class I) | D1247 |
| Brian P Brown | Hope, RI | — | Installer | L0760 |
| Brian P Thalmann | Barrington, RI | — | Designer (Class III) | D3027 |
| Brian Putnam | Chepachet, RI | — | Installer | L0900 |
| Brian R King | Warwick, RI | — | Designer (Class IV Soil Evaluator) | D4010 |
| Brian R Kuchar | Sandwich, MA | — | Designer (Class III) | D3098 |
| Brian R LeClair | Hope, RI | — | Installer | L2039 |
| BRIGGS SEPTIC, Inc. | Saunderstown, RI | — | Septage Hauler | 349 |
| Bruce Brayman | Hope Valley, RI | — | Installer | L0881 |
| Bruce G Hagerman | Warwick, RI | — | Designer (Class III) | D3014 |
| Byron A Rymer | Portsmouth, RI | — | Installer | L1939 |
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