Radon Testing CompaniesIndiana file — IN IPLA
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Chapter 04 — The Indiana file

Radon testing & mitigation in Indiana

Current IN IPLA credentials from the official Indiana roster. We group people by the city on that file. We do not invent neighborhoods. Source: IN IPLA.

Latest credential check October 13, 2026. Methodology Individual record dates may be earlier.

406current listings
317testing
89mitigation
Fig. 4 — 288 of 406 current listings are mapped. 118 records have no mappable in-state place. Each pin is a current listing at the Census city or county centroid on the file, approximate. Pins that share a place are spread so you can click them. Not street addresses.

§ 4.1

Cities with listings

A city appears only when at least one current listing serves it.

§ 4.3

How to verify a radon credential in Indiana

IN IPLA licenses radon work in Indiana and publishes a list we import monthly. Match the name and credential number on the official page before you hire.

Official IN IPLA verification page · All fifty states · reviewed September 8, 2026

§ 4.4

Questions about radon credentials in Indiana

Does Indiana license radon testers and mitigators?

IN IPLA licenses radon work in Indiana and publishes a current list with credential numbers. This site imports that list and re-checks it monthly. 406 current Indiana listings appear here as of October 13, 2026.

How do I verify a radon credential in Indiana?

Open the IN IPLA lookup at https://mylicense.in.gov/EVerification/Search.aspx, search the name, and match the credential number digit for digit. Status can change between our monthly check on October 13, 2026 and the day you hire. If the official page disagrees with this directory, the official page is right.

Is an NRPP or NRSB certification enough in Indiana?

Indiana issues its own radon credential through IN IPLA, so a national NRPP or NRSB certification is not a substitute for it. Every Indiana listing on this site shows the IN IPLA number, not a national one.