§ 4.1 — Indiana
This page lists 87 people and firms with a current radon mitigation credential whose official record names Indiana. Each row shows the credential number, the issuing body, and its own verification date. The latest record check on this page was October 14, 2026; other records may have been checked earlier. Source: IN IPLA. Verify the number before you hire.
Testing listings are people credentialed to measure radon. Mitigation listings are people credentialed to install a reduction system. Some people appear on both lists when the official file says they hold both. The list is ordered by the city or county on each record. That place is where the record is filed, not a promise about where the person works.
current IN IPLA № RTM01392
current IN IPLA № RTM00960
current IN IPLA № RTM01189
current IN IPLA № RTM01369
current IN IPLA № RTM01346
current IN IPLA № RTM00378
current IN IPLA № RTM01485
current IN IPLA № RTM00924
current IN IPLA № RTM00954
current IN IPLA № RTM01268
current IN IPLA № RTM00881
current IN IPLA № RTM01163
current IN IPLA № RTM01511
current IN IPLA № RTM00798
current IN IPLA № RTM00773
current IN IPLA № RTM00254
current IN IPLA № RTM01428
current IN IPLA № RTM01099
current IN IPLA № RTM01101
current IN IPLA № RTM01282
current IN IPLA № RTM01375
current IN IPLA № RTM01284
current IN IPLA № RTM00855
current IN IPLA № RTM00418
current IN IPLA № RTM01247
current IN IPLA № RTM01490
current IN IPLA № RTM01427
current IN IPLA № RTM00956
current IN IPLA № RTM01334
current IN IPLA № RTM00999
current IN IPLA № RTM01194
current IN IPLA № RTM01239
current IN IPLA № RTM01114
current IN IPLA № RTM01362
current IN IPLA № RTM01365
current IN IPLA № RTM01252
current IN IPLA № RTM01183
current IN IPLA № RTM00835
current IN IPLA № RTM00778
current IN IPLA № RTM01279
current IN IPLA № RTM01496
current IN IPLA № RTM01414
current IN IPLA № RTM01208
current IN IPLA № RTM00959
current IN IPLA № RTM00922
current IN IPLA № RTM01228
current IN IPLA № RTM00334
current IN IPLA № RTM01398
current IN IPLA № RTM01445
current IN IPLA № RTM01081
current IN IPLA № RTM00052
current IN IPLA № RTM00288
current IN IPLA № RTM00488
current IN IPLA № RTM01123
current IN IPLA № RTM01345
current IN IPLA № RTM00608
current IN IPLA № RTM00716
current IN IPLA № RTM01408
current IN IPLA № RTM00756
current IN IPLA № RTM01492
current IN IPLA № RTM01484
current IN IPLA № RTM01309
current IN IPLA № RTM01103
current IN IPLA № RTM01514
current IN IPLA № RTM01494
current IN IPLA № RTM00991
current IN IPLA № RTM01417
current IN IPLA № RTM01491
current IN IPLA № RTM01283
current IN IPLA № RTM00726
current IN IPLA № RTM01328
current IN IPLA № RTM01071
current IN IPLA № RTM01221
current IN IPLA № RTM01441
current IN IPLA № RTM01503
current IN IPLA № RTM01385
current IN IPLA № RTM01127
current IN IPLA № RTM01451
current IN IPLA № RTM01304
current IN IPLA № RTM01245
current IN IPLA № RTM01155
current IN IPLA № RTM00703
current IN IPLA № RTM00475
current IN IPLA № RTM00534
current IN IPLA № RTM01481
current IN IPLA № RTM00852
current IN IPLA № RTM00692
Appendix A
Open the source link on this page and match the name and credential number to IN IPLA. Status can change after a record’s verification date. The latest record check on this page was October 14, 2026; check each record’s date. If the official page disagrees with this directory, trust the official page. We do not invent credential numbers.
The U.S. EPA does not certify radon contractors. EPA publishes guidance on finding a qualified radon service provider and points to state programs and national certifications. This directory is not affiliated with EPA. We do not display EPA-certified badges.
Last verified on an individual record is the date we checked its official source. The latest credential check on this page was October 14, 2026; other records may have earlier dates. We refresh the roster monthly. Current means the person appeared as currently credentialed on the source at that record’s verification date. Credentials can expire between refreshes, so follow the source link.
Appendix A.2
The full checklist: How to choose a radon mitigation company: 6 checks before you sign
Indiana licenses radon testers and mitigators. The people below appear as Active on the official IPLA license verification search we imported (primary testers, secondary testers, and mitigators). Laboratory testers are not listed here. Read the methodology. Credential status can change.