How we verify licenses

Indiana certifies radon testers and mitigators separately. We list only companies where at least one person holds an active Radon Mitigator license.

1. We search the state's public license lookup for Profession "Radon", License Type "Radon Mitigator", Status "Active".
2. We match each licensee to the company they work for, using the business details on their license record.
3. We publish the company name, city, license number and business contact details. We do not publish personal emails or home addresses.

Last check: 2026-10-24. Licenses can lapse between checks, so confirm the license number before you sign a contract.

Spotted a mistake, or want your company removed? Use the contact on the mitigators page.