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Septic Registry

Licensed septic companies in Newport County, Rhode Island

31 businesses on Rhode Island’s septic licensing records give Newport County as its address.

Licensed businesses based in Newport County

Who handles septic permits in Newport County

RIDEM licenses the people who design onsite wastewater systems and the soil evaluators who assess whether a site can take one. It licenses installers too, but publishes a list only for designers and soil evaluators — so this covers who you need before the digging, not who does it.

How to verify a septic licence before you hire →

Towns in Newport County

Where in the county each licensed business is based.

Licensed companies in neighbouring counties

A Rhode Island septic licence is valid statewide, so a company listed in an adjoining county can legally do the work in Newport County.

Records as published August 26, 2026. A licence can lapse at any time — confirm with RIDEM's OWTS professional licensing office before hiring. Report a correction.