Maine Radiation Control Program — Radon Service Provider registry (ALMS)
Maine radon service providers (air)
121 active registered companies with Test Air, Portable Lab (air), and/or Mitigate Air authority from the official Maine ALMS company search CSV exports. Retrieved 2026-09-17 (US/Pacific).
If you are not sure you need a pro yet, see when a DIY radon test kit is enough or how to test a home for radon.
Maine registers radon service providers through the Radiation Control Program (DHHS / Division of Environmental Health). Names, license numbers, addresses, phones, expiration dates, and air authorities are transcribed from official ALMS “Search active licenses only” CSV downloads for Test Air, Portable Lab (air), and Mitigate Air — nothing invented. Status changes; re-check ALMS before hiring.
Under Maine law, when a residence is for sale, testing and mitigation must be done by a registered radon service provider (owner/occupant may not perform those services for a sale). This page covers indoor air only. Water authorities (Test Water / Mitigate Water / Stationary Lab water) are not used for the service column here; re-check ALMS if you need water radon services. Stationary Lab (air) analytical labs are also listed in ALMS and are not separately merged onto this table unless they also hold Test Air, Portable Lab (air), or Mitigate Air.
Address of record includes 103 Maine and 18 out-of-state companies as published.
Always verify registration is still active in ALMS before hiring. This index does not rank contractors or take referral fees.
Official sources
- Maine CDC — Radon (Radiation Control Program) (retrieved 2026-09-17)
- Maine Radiation Control Program — ALMS search instructions
- Maine ALMS — Radon Service Provider company search (board 2458; active licenses; Test Air / Portable Lab (air) / Mitigate Air CSV exports retrieved 2026-09-17)
- Radiation Control Program phone: 207-287-5676; Radon.dhhs@maine.gov
- NRPP Find a Pro
- NRSB find a professional
- U.S. EPA Radon
Showing 121 of 121
ALMS registered radon companies (air)
121 unique active licenses · 88 measurement · 19 mitigation · 14 both. Service column reflects Test Air / Portable Lab (air) and Mitigate Air only.
| Business | License # | Type | Services | Address | City | State | ZIP | County | Phone | Expires |
|---|---|---|---|---|---|---|---|---|---|---|
| 207 RADON LLC | SMC497 | Small Residential Company | Mitigation | 186 N RAYMOND RD | Poland | ME | 04274-5927 | Androscoggin | (207) 485-5950 | 09/30/2027 |
| 5 TIDES HOME INSPECTIONS LLC | SMC369 | Small Residential Company | Measurement | 11 LAWRENCE ST | South Gardiner | ME | 04359 | Kennebec | (207) 512-0660 | 09/30/2027 |
| 603 BASEMENT SOLUTIONS | SPC500 | Specialist Company | Mitigation | 213 HAVERHILL RD STE 8 | East Kingston | NH | 03827-2155 | Rockingham | (603) 793-5607 | 09/30/2026 |
| A BUILDERS VIEW HOME INSPECTIONS | SMC361 | Small Residential Company | Measurement | 37 ROLLING MEADOW DR | Norway | ME | 04268-4454 | Oxford | (207) 520-8590 | 09/30/2027 |
| A-JD HOME INSPECTIONS | SMC72 | Small Residential Company | Measurement | 56 EVERGREEN DR | Gorham | ME | 04038-4016 | Cumberland | (207) 839-3537 | 09/30/2027 |
| A-Z WATER SYSTEMS, INC. | SMC419 | Small Residential Company | Mitigation | 1164 LEWISTON RD. | New Gloucester | ME | 04260 | Cumberland | (207) 268-2987 | 09/30/2027 |
| AARON RADON MITIGATION | SMC203 | Small Residential Company | Mitigation | 142 ALFRED RD | Kennebunk | ME | 04043-6232 | York | (207) 590-5457 | 09/30/2028 |
| ACADIA PROPERTY INSPECTIONS | SMC414 | Small Residential Company | Measurement | 91 NORWAY DR | Bar Harbor | ME | 04609 | Hancock | (207) 460-5544 | 09/30/2026 |
| ADVANCED INSPECTIONS INC | SMC389 | Small Residential Company | Measurement | 14B ZEPPLIN LANE | Readfield | ME | 04355 | Kennebec | (207) 248-2690 | 09/30/2027 |
| AFFORDABLE HOME | SPC286 | Specialist Company | Measurement | 4 LOWELL RD | Enfield | ME | 04493-4314 | Penobscot | (207) 478-2655 | 09/30/2026 |
| AIR & WATER QUALITY INC | SPC5 | Specialist Company | Mitigation | 160 US ROUTE 1 | Freeport | ME | 04032-7013 | Cumberland | (207) 865-9200 | 09/30/2027 |
| ALLIANCE HOME INSPECTIONS LLC | SMC402 | Small Residential Company | Measurement | 14 CARRIAGE LN | Hampden | ME | 04444-1738 | Penobscot | (207) 745-7453 | 09/30/2027 |
| ALPHA HOME & COMMERCIAL BUILDING INSPECTIONS | SMC405 | Small Residential Company | Measurement | 845 OCEAN BLVD | Hampton | NH | 03842-2515 | Rockingham | (603) 816-1014 | 09/30/2027 |
| AMERISPEC HOME INSPECTION SERVICE | SMC128 | Small Residential Company | Measurement | 98 MAINE ST STE 14 | Brunswick | ME | 04011-2031 | Cumberland | (207) 557-0967 | 09/30/2026 |
| ANALYTICHEM USA | SPC3 | Specialist Company | Measurement | 120 MAIN ST | Westbrook | ME | 04092-4810 | Cumberland | (207) 878-6481 x103 | 09/30/2026 |
| ANNE KINNEY | SMC394 | Small Residential Company | Measurement | 17 PRESCOTT ST | Newmarket | NH | 03857-2018 | Rockingham | (603) 817-5735 | 09/30/2027 |
| APS ENVIRONMENTAL | SPC505 | Specialist Company | Measurement | 18 CONSTITUTION DR STE 2 | Bedford | NH | 03110-6076 | Hillsborough | (877) 292-7732 | 09/30/2027 |
| AQUA-MAX OF MAINE | SMC195 | Small Residential Company | Measurement & mitigation | 70 BOWDOINHAM RD | Lisbon Falls | ME | 04252-6155 | Androscoggin | (207) 782-1005 | 09/30/2026 |
| ATLANTIC HOME INSPECTION CO | SMC186 | Small Residential Company | Measurement | 126 ALEWIVE RD | Lyman | ME | 04002-6063 | York | (207) 712-2557 | 09/30/2028 |
| AVT SEACOAST HOME SERVICES LLC | SMC509 | Small Residential Company | Measurement | 29 FOREST ST | Dover | NH | 03820-3221 | Strafford | (603) 969-7737 | 09/30/2027 |
| BAY AND BEYOND INSPECTION SERVICES | SMC385 | Small Residential Company | Measurement | 25 ROBINSON SCHOOLHOUSE RD | Morrill | ME | 04952-5119 | Waldo | (207) 505-5087 | 09/30/2026 |
| BE SAFE | SPC275 | Specialist Company | Measurement & mitigation | 26 CASTLE CT | Casco | ME | 04015-3946 | Cumberland | (207) 595-2822 | 09/30/2026 |
| BEAL HOME INSPECTIONS | SPC399 | Specialist Company | Measurement | 384 CHRISTIAN RIDGE RD | Ellsworth | ME | 04605-3217 | Hancock | (207) 266-7051 | 09/30/2026 |
| BERGERON HOME INSPECTIONS LLC | SMC508 | Small Residential Company | Measurement | 254 INTERVALE RD | New Gloucester | ME | 04260-3813 | Cumberland | (207) 749-1312 | 09/30/2027 |
| BLUE LOBSTER HOME INSPECTION INC. | SMC386 | Small Residential Company | Measurement | 4 SCAMMON ST STE 19-341 | Saco | ME | 04072-5121 | York | (207) 391-4244 | 09/30/2027 |
| BLUELEAF HOME SERVICES LLC | SMC462 | Small Residential Company | Measurement | 1305 STATE ST | Veazie | ME | 04401-6905 | Penobscot | (207) 385-6171 | 09/30/2027 |
| BREAKWATER INSPECTIONS | SPC268 | Specialist Company | Measurement | 21 LIMEROCK ST UNIT 5 | Rockland | ME | 04841-7000 | Knox | (207) 956-0323 | 09/30/2026 |
| BROWN PROJECT MANAGEMENT | SMC483 | Small Residential Company | Measurement | 3 CANAAN AVENUE | Washburn | ME | 04786 | Aroostook | (207) 227-8193 | 09/30/2026 |
| CASTLE AND COTTAGE HOME INSPECTIONS, LLC | SPC118 | Specialist Company | Measurement | 834 MAIN STREET | Wilton | ME | 04294 | Franklin | (207) 779-7475 | 09/30/2026 |
| CENTRAL MAINE HOME INSPECTIONS | SMC472 | Small Residential Company | Measurement | 33 FRONT ST | Brownville | ME | 04414-3702 | Piscataquis | (207) 965-6137 | 09/30/2027 |
| CERTIFIED INSPECTION SERVICES, INC. | SMC373 | Small Residential Company | Measurement | 77 MADISON AVE | Brewer | ME | 04412-1838 | Penobscot | (207) 990-5969 | 09/30/2027 |
| CHANCORP INC | SPC159 | Specialist Company | Measurement | 347 MAIN ST # 1B | Gorham | ME | 04038-1338 | Cumberland | (207) 839-6595 | 09/30/2027 |
| CLEARVIEW INSPECTIONS LLC | SMC506 | Small Residential Company | Measurement | 25 HOWE RD | Fairfield | ME | 04937-3419 | Somerset | (207) 649-7092 | 09/30/2026 |
| CLIFFORD MCKINLEY | SPC257 | Specialist Company | Measurement | 30 LIZA HARMON DR | Westbrook | ME | 04092-4766 | Cumberland | (207) 854-9779 | 09/30/2026 |
| CONFIDENCE BUILDING INSPECTIONS LLC | SMC452 | Small Residential Company | Measurement | 19 RUDMAN RD | Portland | ME | 04102-2219 | Cumberland | (207) 446-2973 | 09/30/2028 |
| COUNTY ENVIRONMENTAL ENGINEERING, INC | SPC256 | Specialist Company | Measurement & mitigation | 924 GRIMES RD | Caribou | ME | 04736-3855 | Aroostook | (207) 472-0858 | 09/30/2028 |
| CREDERE ASSOCIATES, LLC | SPC291 | Specialist Company | Measurement | 776 MAIN ST | Westbrook | ME | 04092-3419 | Cumberland | (207) 828-1272 | 09/30/2026 |
| DANIEL G KNOWLES | SMC504 | Small Residential Company | Mitigation | 46 WILD IRISH RD | Orrington | ME | 04474-3700 | Penobscot | (207) 307-5467 | 09/30/2027 |
| DB AIR QUALITY LLC | SPC454 | Specialist Company | Mitigation | 59 LEIGHTON RD | Falmouth | ME | 04105-2207 | Cumberland | (207) 615-1507 | 09/30/2026 |
| DC INSPECTIONS, LLC | SPC223 | Specialist Company | Measurement | 6 LISA LN | Biddeford | ME | 04005-4047 | York | (207) 282-6989 | 09/30/2028 |
| DEFENDER HOME INSPECTION, LLC | SMC442 | Small Residential Company | Measurement | 19 ST LOUIS AVE | Hermon | ME | 04401-0874 | Penobscot | (207) 745-3900 | 09/30/2026 |
| DES MOINES RADON | SPC498 | Specialist Company | Measurement | 5644 NE 17TH ST | Des Moines | IA | 50313-1616 | Polk | (515) 210-4407 | 09/30/2027 |
| ELLIOTT'S INFORMATION SERVICES LLC | SMC489 | Small Residential Company | Measurement | 50 BONNIE LEA DR | Hermon | ME | 04401-0872 | Penobscot | (207) 551-4240 | 09/30/2026 |
| EUROFINS AUBURN | SPC20 | Specialist Company | Measurement | 155 CENTER ST BLDG C | Auburn | ME | 04210-5230 | Androscoggin | (207) 784-5354 | 09/30/2027 |
| EVERCLEAN RADON SYSTEMS LLC | SPC473 | Specialist Company | Measurement & mitigation | 4 SONNY DR | Fairfield | ME | 04937-3483 | Somerset | (207) 441-4981 | 09/30/2026 |
| EVERGREEN INSPECTIONS LLC | SMC468 | Small Residential Company | Measurement | 141 OLD COUNTY RD | Dresden | ME | 04342-3249 | Lincoln | (207) 656-2572 | 09/30/2027 |
| FIRST LIGHT INSPECTIONS LLC | SPC448 | Specialist Company | Measurement | 246 SACO ST | Westbrook | ME | 04092-2740 | Cumberland | (207) 805-7949 | 09/30/2027 |
| FONTUS, INC. | SMC418 | Small Residential Company | Mitigation | 39 IMMERSION DR STE 3 | Scarborough | ME | 04074-6587 | Cumberland | (207) 856-0066 | 09/30/2026 |
| GLENNIS HOME INSPECTION, LLC | SMC455 | Small Residential Company | Measurement | 68 PASTURE WAY | Lamoine | ME | 04605-4466 | Hancock | (207) 881-4099 | 09/30/2026 |
| GOOD HOME PROPERTY INSPECTIONS | SMC384 | Small Residential Company | Measurement | 25 ORRS HILL RD | Harpswell | ME | 04079-3775 | Cumberland | (207) 295-4624 | 09/30/2026 |
| GOODWIN ENVIRONMENTAL TESTING | SPC335 | Specialist Company | Measurement | 17 KATHRYN LN | Bangor | ME | 04401-5897 | Penobscot | (207) 852-8023 | 09/30/2028 |
| GREEN BRIDGE HOME SERVICES, LLC | SPC453 | Specialist Company | Measurement | 97 WEED POINT RD | Little Deer Isle | ME | 04650-3155 | Hancock | (207) 460-3952 | 09/30/2027 |
| GUARDIAN HOME INSPECTIONS LLC | SMC436 | Small Residential Company | Measurement | 391 MAIN RD S | Hampden | ME | 04444-1108 | Penobscot | (207) 852-7857 | 09/30/2027 |
| HALEY WARD, INC | SPC31 | Specialist Company | Measurement | 1 MERCHANTS PLZ STE 701 | Bangor | ME | 04401-8304 | Penobscot | (207) 989-4824 | 09/30/2026 |
| HARBORLIGHT PROPERTY INSPECTIONS, LLC | SMC507 | Small Residential Company | Measurement | 443 WESTERN AVE # 1135 | South Portland | ME | 04106-1726 | Cumberland | (207) 245-4688 | 09/30/2027 |
| HILLMANN CONSULTING, LLC | SPC494 | Specialist Company | Measurement | 6 FORTUNE DR STE 301 | Billerica | MA | 01821-3917 | Middlesex | (617) 429-7617 | 09/30/2026 |
| HISSONG PROPERTIES | SPC495 | Specialist Company | Measurement & mitigation | 46 YORK ST | Kennebunk | ME | 04043-7160 | York | (207) 985-9305 | 09/30/2026 |
| HOMEVIEW INCORPORATED | SMC440 | Small Residential Company | Measurement | 27 NEWFIELDS RD | Exeter | NH | 03833-4541 | Rockingham | (603) 770-0444 | 09/30/2026 |
| HOUSE TO HOME | SMC336 | Small Residential Company | Measurement | 122 WEBSTER RD | Lisbon | ME | 04250-6057 | Androscoggin | (207) 577-0395 | 09/30/2028 |
| HOUSEMASTER | SPC70 | Specialist Company | Measurement | 57 ESTES RD | Rochester | NH | 03839-5414 | Strafford | (603) 332-7411 | 09/30/2027 |
| INSPECT ALL MAINE | SMC349 | Small Residential Company | Measurement | 580 DOW RD | Orrington | ME | 04474-3742 | Penobscot | (207) 745-8075 | 09/30/2026 |
| JOHN CARRIER HOME INSPECTION | SMC408 | Small Residential Company | Measurement | 2 STRAWBERRY PATCH LN | Freeport | ME | 04032-6774 | Cumberland | (207) 391-0680 | 09/30/2026 |
| K&L'S PROPERTIES OF MAINE, LLC | SMC449 | Small Residential Company | Mitigation | 307 ROUTE 202 | Greene | ME | 04236-4216 | Androscoggin | (207) 446-3779 | 09/30/2026 |
| KSD SERVICES LLC | SPC496 | Specialist Company | Mitigation | 18 FAYETTE RIDGE RD | Fayette | ME | 04349-3416 | Kennebec | (207) 620-6533 | 09/30/2026 |
| LACOMBE ENTERPRISES, LLC | SMC371 | Small Residential Company | Measurement | 944 SABATTUS ST | Lewiston | ME | 04240-3712 | Androscoggin | (207) 240-1257 | 09/30/2028 |
| LEON GRIESBACH | SMC409 | Small Residential Company | Measurement | 57 MAIN ST | Lisbon Falls | ME | 04252-1716 | Androscoggin | (207) 319-3364 | 09/30/2026 |
| LINDSAY LAKE INSPECTION | SMC486 | Small Residential Company | Measurement | 419A FULLER RD | Easton | ME | 04740-4121 | Aroostook | (207) 227-1360 | 09/30/2026 |
| LOIGNON ENTERPRISESLLC | SMC404 | Small Residential Company | Measurement | 93 PHEASANT LN | Barrington | NH | 03825-5104 | Strafford | (603) 931-3131 | 09/30/2026 |
| MADDEN HOME INSPECTIONS | SPC333 | Specialist Company | Measurement | 239 BOG RD | Hampden | ME | 04444-3425 | Penobscot | (207) 989-5010 | 09/30/2027 |
| MAIN CHOICE INSPECTIONS | SMC315 | Small Residential Company | Measurement | 431 SPRING WATER RD | Poland | ME | 04274-5314 | Androscoggin | (207) 515-0439 | 09/30/2026 |
| MAINE COAST CONSTRUCTION CORP. | SMC14 | Small Residential Company | Mitigation | 107 ELM ST | Camden | ME | 04843-1906 | Knox | (207) 236-6000 | 09/30/2027 |
| MAINE COAST LAB | SPC487 | Specialist Company | Measurement | 47 GARDINER RD | Wiscasset | ME | 04578-4046 | Lincoln | (207) 882-5476 | 09/30/2027 |
| MAINE HOME INSPECTION CO. | SMC140 | Small Residential Company | Measurement | 24 HARDY RD | Falmouth | ME | 04105-2417 | Cumberland | (207) 838-3649 | 09/30/2027 |
| MAINE LINE WATER AND RADON TREATMENT | SMC459 | Small Residential Company | Measurement & mitigation | 119 AVENUE RD | Wales | ME | 04280-3233 | Androscoggin | (207) 418-5730 | 09/30/2026 |
| MAINE RADON & ENVIRONMENTAL | SMC451 | Small Residential Company | Measurement & mitigation | 243 ROOSEVELT TRL UNIT 2 | Windham | ME | 04062-6434 | Cumberland | (207) 742-8390 | 09/30/2026 |
| MAYO HOME INSPECTIONS LLC | SMC339 | Small Residential Company | Measurement | 140 DURHAM RD | Freeport | ME | 04032-6873 | Cumberland | (207) 522-9938 | 09/30/2027 |
| MBE HOME INSPECTIONS | SMC474 | Small Residential Company | Measurement | 4 DANS WAY | Brunswick | ME | 04011-7839 | Cumberland | (207) 841-7699 | 09/30/2027 |
| MDA MAINTENANCE CO | SPC292 | Specialist Company | Measurement | 43 HIGH ST | Bangor | ME | 04401-6146 | Penobscot | (207) 947-6795 | 09/30/2027 |
| MOUNTAIN VIEW HOME INSPECTIONS | SMC343 | Small Residential Company | Measurement | 43 PRESIDENTIAL VW | South Paris | ME | 04281-6337 | Oxford | (207) 558-2677 | 09/30/2027 |
| MRCHAI | SMC341 | Small Residential Company | Measurement | 60 THUNDERMIST RD | Bar Harbor | ME | 04609-7181 | Hancock | (207) 812-6300 | 09/30/2028 |
| MULTIFAMILY RADON INC. | SMC493 | Small Residential Company | Measurement | 401 N MICHIGAN AVE STE 1200 | Chicago | IL | 60611-4264 | Cook | (773) 415-6334 | 09/30/2027 |
| NORLEN'S WATER TREATMENT LLC | SPC30 | Specialist Company | Mitigation | 575 RIVER RD | Orrington | ME | 04474-3405 | Penobscot | (207) 825-4964 | 09/30/2027 |
| NORTH COAST HOME INSPECTION, LLC | SMC379 | Small Residential Company | Measurement | 64 OGUNQUIT RD | Cape Neddick | ME | 03902-7935 | York | (214) 418-8084 | 09/30/2027 |
| NORTHEAST HOME INSPECTIONS | SMC433 | Small Residential Company | Measurement | 40 KELLEY RD | Orono | ME | 04473-3416 | Penobscot | (207) 735-4955 | 09/30/2028 |
| NORTHEAST RADON SOLUTIONS, LLC | SMC421 | Small Residential Company | Measurement & mitigation | 7 POPLAR RIDGE DR | Falmouth | ME | 04105-2440 | Cumberland | (207) 846-0709 | 09/30/2027 |
| NORTHEAST TEST CONSULTANTS | SPC492 | Specialist Company | Measurement | 587 SPRING ST | Westbrook | ME | 04092-3918 | Cumberland | (207) 854-3939 | 09/30/2026 |
| OHS HOME INSPECTIONS | SMC491 | Small Residential Company | Measurement | 14 JOHNSON RD | Presque Isle | ME | 04769-5007 | Aroostook | (207) 227-7022 | 09/30/2027 |
| PARTNER ENGINEERING AND SCIENCE, INC. | SPC458 | Specialist Company | Measurement & mitigation | 611 INDUSTRIAL WAY W | Eatontown | NJ | 07724-2284 | Monmouth | (732) 380-1700 | 09/30/2027 |
| PEAK PERFORMANCE HOME AND BUILDING INSPECTIONS | SMC355 | Small Residential Company | Measurement | 57 WINDSOR ST | Randolph | ME | 04346-5300 | Kennebec | (207) 480-0132 | 09/30/2028 |
| PILLAR TO POST DOWNEAST HOME INSPECTIONS | SMC300 | Small Residential Company | Measurement | 243 ROOSEVELT TRL UNIT 1 | Windham | ME | 04062-6434 | Cumberland | (207) 749-3775 | 09/30/2026 |
| PINELAND HOME INSPECTIONS, LLC | SMC463 | Small Residential Company | Measurement | 67 MOHAWK LN | Brentwood | NH | 03833-6427 | Rockingham | (603) 416-0475 | 09/30/2027 |
| PINETREE HOME INSPECTIONS, LLC | SMC271 | Small Residential Company | Measurement | 1599 UNION ST | Bangor | ME | 04401-2703 | Penobscot | (207) 991-2774 | 09/30/2026 |
| PRECISION RADON SYSTEMS, LLC | SMC501 | Small Residential Company | Mitigation | 11 W HILL PL | Center Barnstead | NH | 03225-3338 | Belknap | (603) 267-0607 | 09/30/2026 |
| PROTECT ENVIRONMENTAL, LLC | SPC503 | Specialist Company | Measurement | 9822 BLUEGRASS PKWY | Louisville | KY | 40299-1906 | Jefferson | (502) 496-4383 | 09/30/2026 |
| QUALITY RADON | SMC241 | Small Residential Company | Mitigation | 216 MOUNTAIN VIEW DR | Hermon | ME | 04401-0545 | Penobscot | (207) 605-0142 | 09/30/2027 |
| RADON DETECTION SPECIALISTS | SPC482 | Specialist Company | Measurement | 825 N CASS AVE STE 310 | Westmont | IL | 60559-6403 | Dupage | (630) 479-2507 | 09/30/2026 |
| RADON DONE RIGHT, LLC | SPC199 | Specialist Company | Measurement & mitigation | 383 PATTEN RD | Greene | ME | 04236-3920 | Androscoggin | (866) 997-2366 | 09/30/2026 |
| RADON MITIGATION SERVICES OF MAINE | SMC387 | Small Residential Company | Mitigation | 66 KING PINE DR | Holden | ME | 04429-7009 | Penobscot | (207) 478-8885 | 09/30/2026 |
| RADON REMOVAL SYSTEMS | SPC23 | Specialist Company | Measurement & mitigation | 153 FOREST ST | Westbrook | ME | 04092-4342 | Cumberland | (800) 640-8889 | 09/30/2026 |
| RADONCHECK | SPC4 | Specialist Company | Measurement | 475 US ROUTE 1 STE 10 | Freeport | ME | 04032-7020 | Cumberland | (207) 885-0851 | 09/30/2026 |
| RENOVATION CONSULTANTS LLC | SMC446 | Small Residential Company | Measurement | 41 WATERBORO RD | Alfred | ME | 04002-3233 | York | (207) 838-2448 | 09/30/2027 |
| RICK CURTIS CONTRACTOR | SPC260 | Specialist Company | Measurement & mitigation | 580 DOW RD | Orrington | ME | 04474-3742 | Penobscot | (207) 249-9108 | 09/30/2026 |
| RIVERSIDE HOME INSPECTIONS INC | SMC120 | Small Residential Company | Measurement | 67 WHITES POINT RD | Standish | ME | 04084-5356 | Cumberland | (207) 318-6186 | 09/30/2028 |
| RKL HOME INSPECTIONS | SMC360 | Small Residential Company | Measurement | 228 COBB RD | Poland | ME | 04274-6336 | Androscoggin | (207) 754-7026 | 09/30/2026 |
| SAFE HOME RADON REMOVAL | SMC499 | Small Residential Company | Measurement & mitigation | 18 SHOBE AVE | Brunswick | ME | 04011-2913 | Cumberland | (561) 603-2474 | 09/30/2027 |
| SAFE RADON SOLUTIONS, LLC | SMC392 | Small Residential Company | Measurement & mitigation | 90 LINCOLN ST | Portland | ME | 04103-4053 | Cumberland | (207) 749-7998 | 09/30/2026 |
| SEA COAST HOME INSPECTION | SMC376 | Small Residential Company | Measurement | 19 LIMEROCK ST | Camden | ME | 04843-2116 | Knox | (207) 701-1023 | 09/30/2027 |
| SEVEE AND MAHER ENGINEERS | SPC476 | Specialist Company | Measurement | 4 BLANCHARD RD | Cumberland | ME | 04021-3502 | Cumberland | (207) 829-5016 | 09/30/2028 |
| SHERLOCK HOMES CERTIFIED HOME INSPECTION | SMC197 | Small Residential Company | Measurement | 20 POUND RD | Durham | ME | 04222-5207 | Androscoggin | (207) 650-5117 | 09/30/2027 |
| SNEAK PEAK HOME INSPECTION | SMC502 | Small Residential Company | Measurement | 43 GREENWOOD AVE | Skowhegan | ME | 04976-2042 | Somerset | (207) 400-2747 | 09/30/2027 |
| SOUTH PORTLAND HOUSING AUTHORITY | SPC269 | Specialist Company | Measurement | 100 WATERMAN DR STE 101 | South Portland | ME | 04106-2880 | Cumberland | (207) 773-4140 | 09/30/2026 |
| SOUTHERN MAINE INSPECTIONS | SMC58 | Small Residential Company | Measurement | 87 COTTAGE RD | Windham | ME | 04062-4402 | Cumberland | (207) 805-4976 | 09/30/2027 |
| ST. GERMAIN | SMC411 | Small Residential Company | Mitigation | 846 MAIN ST | Westbrook | ME | 04092-2890 | Cumberland | (207) 857-7603 | 09/30/2027 |
| SWAT ENTERPRISES LLC | SMC331 | Small Residential Company | Mitigation | 141 PARKER ST STE 205 | Maynard | MA | 01754-2179 | Middlesex | (800) 667-2366 | 09/30/2026 |
| TRC ENVIRONMENTAL CORPORATION | SMC251 | Small Residential Company | Measurement | 21 GRIFFIN RD N | Windsor | CT | 06095-1512 | Hartford | (860) 298-6392 | 09/30/2028 |
| TRI COUNTY RADON | SPC397 | Specialist Company | Measurement | 605 PORT RD | Machiasport | ME | 04655-3112 | Washington | (207) 263-7867 | 09/30/2028 |
| UPFRONT HOME INSPECTIONS LLC | SMC423 | Small Residential Company | Measurement | 13 BIRCHWOOD ACRES | New Gloucester | ME | 04260 | Cumberland | (207) 619-0868 | 09/30/2027 |
| WATER DOCTORS, LLC, THE | SMC225 | Small Residential Company | Mitigation | 361 BATH RD | Brunswick | ME | 04011-2673 | Cumberland | (207) 443-8080 | 09/30/2028 |
| WATER TREATMENT EQUIPMENT INC. | SPC28 | Specialist Company | Mitigation | 915 ROUTE 1 | Yarmouth | ME | 04096-6931 | Cumberland | (207) 846-5061 | 09/30/2028 |
| WIN HOME INSPECTION | SMC86 | Small Residential Company | Measurement | 23 JAMECO MILL RD | Scarborough | ME | 04074-8215 | Cumberland | (207) 283-6600 | 09/30/2027 |
| YANKEE HOME INSPECTIONS | SMC481 | Small Residential Company | Measurement | 9 LONGMEADOW DR | Brewer | ME | 04412-1308 | Penobscot | (207) 659-2853 | 09/30/2027 |
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