About GroundRoster

GroundRoster aggregates official state and county licensing rosters for water-well and septic (onsite wastewater) professionals into one searchable directory, refreshed regularly.

Every listing on this site originates from official state or county licensing records. We cite the official source on each profile so you can verify any license yourself. Listings are free. A business can confirm its listing details free, or claim it with a paid Claimed Listing. A Claimed Listing shows the business's contact details and its own message, carries the Verified badge once the owner verifies it, appears ahead of standard listings, and receives quote requests for its area.

GroundRoster at groundroster.com is independently operated. We are not affiliated with any state licensing authority or government agency, nor with any other similarly named website or business.

Questions, or want to revise your listing details? Email hello@groundroster.com. Contractors can also use the contractor form.

ZIP code and city location data on this site is derived from GeoNames, used under the CC BY 4.0 license.