Company lists · Data refreshed November 2026
Top 25 Radon testing labs based in the United States
RevenueBase identified 449 company matches for radon testing labs associated with the United States as of November 2026 and tracks 1,879 professional contacts across them, including 542 with verified work emails. Denver is the largest hub.
This list covers company matches for radon testing labs associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest radon testing labs based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 100 contacts → | ||||
Exact match “SWAT Environmental is the largest, most experienced radon mitigation services company in the United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 86 contacts → | ||||
Exact match “Protect Environmental is a national home services provider specializing in insulation, crawl space encapsulation, water quality, mold, and radon services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 77 contacts → | ||||
Exact match “ALC provides a wide range of environmental services from testing and reporting on potentially unsafe or hazardous conditions (asbestos, lead paint, indoor air quality/mold, soil…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 76 contacts → | ||||
Exact match “Spruce was founded in 1989 with the purpose of making indoor air safer by removing a major health hazard: Radon.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 53 contacts → | ||||
Exact match “SanAir Technologies Laboratory, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 29 contacts → | ||||
Exact match “Axium, Inc.| Axium Inspections is Colorado's the largest and most referred Colorado home inspection company with over 5-Star Reviews.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 24 contacts → | ||||
Exact match “We find the hidden dangers so you don't have to worry about them.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 21 contacts → | ||||
Exact match “Independent testing, inspections, lab analysis and consulting.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 19 contacts → | ||||
Exact match “Ecosense is a Silicon Valley based company providing and supporting a family of high accuracy, real-time radon detectors for professional home inspectors, radon mitigators, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 19 contacts → | ||||
Exact match “RAdata Analytical Lab is proud to have been serving our New Jersey communities since 1984!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 18 contacts → | ||||
Exact match “Air quality testing Environmental site assessments Mold and moisture Intrusion surveys Industrial Safety Audits Mock Safety Audits to find and mitigate employee dangers…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 18 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 17 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 16 contacts → | ||||
Exact match “Home Inspection Team Radon Sewer 🦠 Mold Chimney Water Assessments Much more!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 16 contacts → | ||||
Exact match “We are Certified Indoor Environmentalists serving Washington D.C, Maryland, and Virginia since 2002.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 16 contacts → | ||||
Exact match “Mold Inspection Sciences is an indoor environmental company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 15 contacts → | ||||
Exact match “JLM Environmental performs asbestos, lead, mold, radon, allergen, voc, home inspections.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 14 contacts → | ||||
Exact match “RadonAway is dedicated to delivering high-quality products, tools, and services designed to detect and mitigate radon and other harmful soil gases.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 13 contacts → | ||||
Exact match “Wellington Environmental has been in business for over 30 years and serves the Midwestern United States, including all of Missouri and Illinois.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 13 contacts → | ||||
Exact match “PRO-LAB® is the world-leading business in environmental testing for over 20 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 13 contacts → | ||||
Exact match “EcoPure focuses on improving human health by improving indoor air quality (IAQ).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 12 contacts → | ||||
Exact match “Air & Water Quality was established in 1989 to help homeowners resolve water and radon issues and improve their home environments and their lives.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 12 contacts → | ||||
Exact match “Cascade Radon is the Northwest leader in radon testing and mitigation system design, with over 25 years of expertise in the field.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 11 contacts → | ||||
Exact match “Elite Environmental Consulting is a full service environmental consulting firm serving California with offices in Vallejo, CA and San Diego, CA with capabilities to service…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 11 contacts → | ||||
Exact match “Indoor Environments Association is a nonprofit, professional organization of members who are dedicated to the highest standard of excellence and ethical performance of hazard…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “radon testing labs”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 449 radon testing labs based in the United States
See the full list, filter by size, metro and specialty, and access 542 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Radon testing labs based in the United States at a glance
As of Nov 6, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 449 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United States whose business descriptions match “radon testing labs” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 542 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “radon testing labs”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many radon testing labs are there based in the United States?
RevenueBase identified 449 company matches for radon testing labs associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Swat Environmental tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most radon testing labs?
Denver leads with 9 company records, followed by Portland (6) and Colorado Springs (5).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 542 professional contacts with verified work emails tracked across these 449 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 449 radon testing labs based in the United States. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
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- New lists
- Radon testing labs based in Canada
- AI companies based in the United States
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- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
Company intelligence · public preview
Top 25 radon testing labs based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 449 matching company records for radon testing labs based in the United States, with 1,879 tracked contacts and 542 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 radon testing labs based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Swat Environmentalswat-radon.comHQ: Milwaukee, WI, United StatesReported employees: 51-200 | Milwaukee, WI, United States | 51-200 | Exact match | 100 contacts → |
“SWAT Environmental is the largest, most experienced radon mitigation services company in the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Protect Environmentalprotectenvironmental.comHQ: Louisville, IL, United StatesReported employees: 501-1,000 | Louisville, IL, United States | 501-1,000 | Exact match | 86 contacts → |
“Protect Environmental is a national home services provider specializing in insulation, crawl space encapsulation, water quality, mold, and radon services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  ALC Environmentalalcenvironmental.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 77 contacts → |
“ALC provides a wide range of environmental services from testing and reporting on potentially unsafe or hazardous conditions (asbestos, lead paint, indoor air quality/mold, soil…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Spruce Environmental Technologies, INCspruce.comHQ: Ward Hill, MA, United StatesReported employees: 51-200 | Ward Hill, MA, United States | 51-200 | Exact match | 76 contacts → |
“Spruce was founded in 1989 with the purpose of making indoor air safer by removing a major health hazard: Radon.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Sanair Technologies Laboratorysanair.comHQ: Richmond, OH, United StatesReported employees: 11-50 | Richmond, OH, United States | 11-50 | Exact match | 53 contacts → |
“SanAir Technologies Laboratory, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Axium, Inc. Axium Inspectionsaxiuminspections.comHQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 29 contacts → |
“Axium, Inc.| Axium Inspections is Colorado's the largest and most referred Colorado home inspection company with over 5-Star Reviews.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Element Building Scienceselement-usa.comHQ: Troy, MI, United StatesReported employees: 11-50 | Troy, MI, United States | 11-50 | Exact match | 24 contacts → |
“We find the hidden dangers so you don't have to worry about them.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Home Land Environmentalhomelandhealthyhomes.comHQ: Towson, MD, United StatesReported employees: 11-50 | Towson, MD, United States | 11-50 | Exact match | 21 contacts → |
“Independent testing, inspections, lab analysis and consulting.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Ecosense INCecosense.ioHQ: San Jose, CA, United StatesReported employees: 1-10 | San Jose, CA, United States | 1-10 | Exact match | 19 contacts → |
“Ecosense is a Silicon Valley based company providing and supporting a family of high accuracy, real-time radon detectors for professional home inspectors, radon mitigators, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Radata Analytical LABradata.comHQ: Flanders, NJ, United StatesReported employees: 11-50 | Flanders, NJ, United States | 11-50 | Exact match | 19 contacts → |
“RAdata Analytical Lab is proud to have been serving our New Jersey communities since 1984!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  RPF Environmental, INCairpf.comHQ: Northwood, ME, United StatesReported employees: 11-50 | Northwood, ME, United States | 11-50 | Exact match | 18 contacts → |
“Air quality testing Environmental site assessments Mold and moisture Intrusion surveys Industrial Safety Audits Mock Safety Audits to find and mitigate employee dangers…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Baxter Environmental Group, INCbaxtergroupinc.comHQ: Chambersburg, PA, United StatesReported employees: 11-50 | Chambersburg, PA, United States | 11-50 | Exact match | 18 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 |  Accustar Labsaccustarlabs.comHQ: Medway, MA, United StatesReported employees: 11-50 | Medway, MA, United States | 11-50 | Exact match | 17 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 |  Marigold Home Inspectionsmarigoldhomeinspections.comHQ: Coon Rapids, MN, United StatesReported employees: 11-50 | Coon Rapids, MN, United States | 11-50 | Exact match | 16 contacts → |
“Home Inspection Team Radon Sewer 🦠 Mold Chimney Water Assessments Much more!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Environmental Solutions, INCesi4u.comHQ: Deale, MD, United StatesReported employees: 11-50 | Deale, MD, United States | 11-50 | Exact match | 16 contacts → |
“We are Certified Indoor Environmentalists serving Washington D.C, Maryland, and Virginia since 2002.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Mold Inspection Sciences Texas, INCmoldinspectiontexas.comHQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 16 contacts → |
“Mold Inspection Sciences is an indoor environmental company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  JLM Environmentaljlmenvironmental.comHQ: Lawndale, CA, United StatesReported employees: 11-50 | Lawndale, CA, United States | 11-50 | Exact match | 15 contacts → |
“JLM Environmental performs asbestos, lead, mold, radon, allergen, voc, home inspections.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Radonawayradonaway.comHQ: Ward Hill, MA, United StatesReported employees: 51-200 | Ward Hill, MA, United States | 51-200 | Exact match | 14 contacts → |
“RadonAway is dedicated to delivering high-quality products, tools, and services designed to detect and mitigate radon and other harmful soil gases.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Wellington Environmentalenvironmentalcare.comHQ: St. Louis, MO, United StatesReported employees: 51-200 | St. Louis, MO, United States | 51-200 | Exact match | 13 contacts → |
“Wellington Environmental has been in business for over 30 years and serves the Midwestern United States, including all of Missouri and Illinois.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Pro-Labprolabinc.comHQ: Weston, FL, United StatesReported employees: 11-50 | Weston, FL, United States | 11-50 | Exact match | 13 contacts → |
“PRO-LAB® is the world-leading business in environmental testing for over 20 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Ecopureecopurecincinnati.comHQ: Cincinnati, OH, United StatesReported employees: 1-10 | Cincinnati, OH, United States | 1-10 | Exact match | 13 contacts → |
“EcoPure focuses on improving human health by improving indoor air quality (IAQ).” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  AIR & Water Quality INCawqinc.comHQ: Freeport, ME, United StatesReported employees: 11-50 | Freeport, ME, United States | 11-50 | Exact match | 12 contacts → |
“Air & Water Quality was established in 1989 to help homeowners resolve water and radon issues and improve their home environments and their lives.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Cascade Radoncascaderadon.comHQ: Portland, OR, United StatesReported employees: 11-50 | Portland, OR, United States | 11-50 | Exact match | 12 contacts → |
“Cascade Radon is the Northwest leader in radon testing and mitigation system design, with over 25 years of expertise in the field.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Elite Environmental Consultingelite-enviro.netHQ: Vallejo, CA, United StatesReported employees: 1-10 | Vallejo, CA, United States | 1-10 | Exact match | 11 contacts → |
“Elite Environmental Consulting is a full service environmental consulting firm serving California with offices in Vallejo, CA and San Diego, CA with capabilities to service…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: Hendersonville, NC, United StatesReported employees: 1-10 | Hendersonville, NC, United States | 1-10 | Exact match | 11 contacts → |
“Indoor Environments Association is a nonprofit, professional organization of members who are dedicated to the highest standard of excellence and ethical performance of hazard…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 449 company matches
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Radon testing labs: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
448 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 449 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for radon testing labs?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many radon testing labs did RevenueBase find based in the United States?
The saved snapshot records 449 matching company records, 1,879 tracked contacts and 542 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Radon testing labs by geography
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 radon testing labs based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/radon-testing-labs/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Radon testing labs based in Canada
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
Company intelligence · public preview
Top 25 radon testing labs based in the United States
RevenueBase records 449 matching company records for radon testing labs based in the United States, with 1,879 tracked contacts and 542 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 radon testing labs based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Swat Environmentalswat-radon.com HQ: Milwaukee, WI, United StatesReported employees: 51-200 | Milwaukee, WI, United States | 51-200 | Exact match | 100 contacts → |
“SWAT Environmental is the largest, most experienced radon mitigation services company in the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Protect Environmentalprotectenvironmental.com HQ: Louisville, IL, United StatesReported employees: 501-1,000 | Louisville, IL, United States | 501-1,000 | Exact match | 86 contacts → |
“Protect Environmental is a national home services provider specializing in insulation, crawl space encapsulation, water quality, mold, and radon services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | ALC Environmentalalcenvironmental.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 77 contacts → |
“ALC provides a wide range of environmental services from testing and reporting on potentially unsafe or hazardous conditions (asbestos, lead paint, indoor air quality/mold, soil…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Spruce Environmental Technologies, INCspruce.com HQ: Ward Hill, MA, United StatesReported employees: 51-200 | Ward Hill, MA, United States | 51-200 | Exact match | 76 contacts → |
“Spruce was founded in 1989 with the purpose of making indoor air safer by removing a major health hazard: Radon.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Sanair Technologies Laboratorysanair.com HQ: Richmond, OH, United StatesReported employees: 11-50 | Richmond, OH, United States | 11-50 | Exact match | 53 contacts → |
“SanAir Technologies Laboratory, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Axium, Inc. Axium Inspectionsaxiuminspections.com HQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 29 contacts → |
“Axium, Inc.| Axium Inspections is Colorado's the largest and most referred Colorado home inspection company with over 5-Star Reviews.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Element Building Scienceselement-usa.com HQ: Troy, MI, United StatesReported employees: 11-50 | Troy, MI, United States | 11-50 | Exact match | 24 contacts → |
“We find the hidden dangers so you don't have to worry about them.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Home Land Environmentalhomelandhealthyhomes.com HQ: Towson, MD, United StatesReported employees: 11-50 | Towson, MD, United States | 11-50 | Exact match | 21 contacts → |
“Independent testing, inspections, lab analysis and consulting.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Ecosense INCecosense.io HQ: San Jose, CA, United StatesReported employees: 1-10 | San Jose, CA, United States | 1-10 | Exact match | 19 contacts → |
“Ecosense is a Silicon Valley based company providing and supporting a family of high accuracy, real-time radon detectors for professional home inspectors, radon mitigators, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Radata Analytical LABradata.com HQ: Flanders, NJ, United StatesReported employees: 11-50 | Flanders, NJ, United States | 11-50 | Exact match | 19 contacts → |
“RAdata Analytical Lab is proud to have been serving our New Jersey communities since 1984!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | RPF Environmental, INCairpf.com HQ: Northwood, ME, United StatesReported employees: 11-50 | Northwood, ME, United States | 11-50 | Exact match | 18 contacts → |
“Air quality testing Environmental site assessments Mold and moisture Intrusion surveys Industrial Safety Audits Mock Safety Audits to find and mitigate employee dangers…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Baxter Environmental Group, INCbaxtergroupinc.com HQ: Chambersburg, PA, United StatesReported employees: 11-50 | Chambersburg, PA, United States | 11-50 | Exact match | 18 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Accustar Labsaccustarlabs.com HQ: Medway, MA, United StatesReported employees: 11-50 | Medway, MA, United States | 11-50 | Exact match | 17 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 | Marigold Home Inspectionsmarigoldhomeinspections.com HQ: Coon Rapids, MN, United StatesReported employees: 11-50 | Coon Rapids, MN, United States | 11-50 | Exact match | 16 contacts → |
“Home Inspection Team Radon Sewer 🦠 Mold Chimney Water Assessments Much more!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Environmental Solutions, INCesi4u.com HQ: Deale, MD, United StatesReported employees: 11-50 | Deale, MD, United States | 11-50 | Exact match | 16 contacts → |
“We are Certified Indoor Environmentalists serving Washington D.C, Maryland, and Virginia since 2002.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Mold Inspection Sciences Texas, INCmoldinspectiontexas.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 16 contacts → |
“Mold Inspection Sciences is an indoor environmental company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | JLM Environmentaljlmenvironmental.com HQ: Lawndale, CA, United StatesReported employees: 11-50 | Lawndale, CA, United States | 11-50 | Exact match | 15 contacts → |
“JLM Environmental performs asbestos, lead, mold, radon, allergen, voc, home inspections.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Radonawayradonaway.com HQ: Ward Hill, MA, United StatesReported employees: 51-200 | Ward Hill, MA, United States | 51-200 | Exact match | 14 contacts → |
“RadonAway is dedicated to delivering high-quality products, tools, and services designed to detect and mitigate radon and other harmful soil gases.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Wellington Environmentalenvironmentalcare.com HQ: St. Louis, MO, United StatesReported employees: 51-200 | St. Louis, MO, United States | 51-200 | Exact match | 13 contacts → |
“Wellington Environmental has been in business for over 30 years and serves the Midwestern United States, including all of Missouri and Illinois.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Pro-Labprolabinc.com HQ: Weston, FL, United StatesReported employees: 11-50 | Weston, FL, United States | 11-50 | Exact match | 13 contacts → |
“PRO-LAB® is the world-leading business in environmental testing for over 20 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Ecopureecopurecincinnati.com HQ: Cincinnati, OH, United StatesReported employees: 1-10 | Cincinnati, OH, United States | 1-10 | Exact match | 13 contacts → |
“EcoPure focuses on improving human health by improving indoor air quality (IAQ).” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | AIR & Water Quality INCawqinc.com HQ: Freeport, ME, United StatesReported employees: 11-50 | Freeport, ME, United States | 11-50 | Exact match | 12 contacts → |
“Air & Water Quality was established in 1989 to help homeowners resolve water and radon issues and improve their home environments and their lives.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Cascade Radoncascaderadon.com HQ: Portland, OR, United StatesReported employees: 11-50 | Portland, OR, United States | 11-50 | Exact match | 12 contacts → |
“Cascade Radon is the Northwest leader in radon testing and mitigation system design, with over 25 years of expertise in the field.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Elite Environmental Consultingelite-enviro.net HQ: Vallejo, CA, United StatesReported employees: 1-10 | Vallejo, CA, United States | 1-10 | Exact match | 11 contacts → |
“Elite Environmental Consulting is a full service environmental consulting firm serving California with offices in Vallejo, CA and San Diego, CA with capabilities to service…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: Hendersonville, NC, United StatesReported employees: 1-10 | Hendersonville, NC, United States | 1-10 | Exact match | 11 contacts → |
“Indoor Environments Association is a nonprofit, professional organization of members who are dedicated to the highest standard of excellence and ethical performance of hazard…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 449 company matches
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Radon testing labs: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
448 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 449 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for radon testing labs?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many radon testing labs did RevenueBase find based in the United States?
The saved snapshot records 449 matching company records, 1,879 tracked contacts and 542 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 radon testing labs based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/radon-testing-labs/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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