About GroundRoster

GroundRoster aggregates official state 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 licensing records. We refresh our data regularly and cite the official source on each profile so you can verify any license yourself. Listings are free; well and septic pros can claim their listing to add contact details, and may optionally purchase featured placement. Featured placement is always labeled.

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 corrections? Use the contact form and we'll respond by email.

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