Company lists · Data refreshed November 2026

Top 25 Mold testing laboratories based in the United States

RevenueBase identified 343 company matches for mold testing laboratories associated with the United States as of November 2026 and tracks 2,194 professional contacts across them, including 731 with verified work emails. Miami is the largest hub.

This list covers company matches for mold testing laboratories 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
343Companies
2,194Contacts tracked
731Verified emails
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The 25 largest mold testing laboratories based in the United States

Ranked by team size
Top 25 of 343 company matches for mold testing laboratories based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchCinnaminson, NJ, United StatesHQ recorded Nov 6, 2026501-1,000766 contacts →

Exact match

“As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-20077 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
3Exact matchRichmond, OH, United StatesHQ recorded Nov 6, 202611-5053 contacts →

Exact match

“SanAir Technologies Laboratory, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchKilgore, TX, United StatesHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“Founded in 1965 by Dr.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchTroy, MI, United StatesHQ recorded Nov 6, 202611-5024 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
6Exact matchSan Antonio, TX, United StatesHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“EnviroBiomics is a leading commercial environmental laboratory in the USA that analyzes samples to determine the presence of mold, bacteria, and other microorganisms (including…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchCarrolton, TX, United StatesHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“RealTime Laboratories, Inc, is a Dallas-based molecular biology and microbiology laboratory specializing in the detection of fungi, yeast and mycotoxins in human and environmental…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchFort Myers, FL, United StatesHQ recorded Nov 6, 202611-5023 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMidlothian, VA, United StatesHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Mold and Bacterial Analysis, Indoor Air Quality Consulting, AIHA Accredited Environmental Microbiology Laboratory.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSuwanee, GA, United StatesHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Founded in 1987, Materials Analytical Services, LLC (MAS) has become one of the foremost labs in the country.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchOak Ridge, TN, United StatesHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Assured Bio Labs is the leader in advanced diagnostics and tools to identify microbial contaminants associated with the built-environment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchFarmers Branch, TX, United StatesHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Moody Labs was established in 1993 as a fully independent testing laboratory specializing in asbestos, mold, bacteria, digital imaging, Polarized Light Microscopy (PLM), Scanning…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAvon, IN, United StatesHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“We specialize in NON-DESTRUCTIVE TREATMENTS.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSanta Monica, OR, United StatesHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Mold Inspection Sciences is a mold inspection, mold testing, and asbestos inspection and testing company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchGainesville, GA, United StatesHQ recorded Nov 6, 2026501-1,00016 contacts →

Exact match

“BioCide Laboratories is a niche producer of anti-fungal, anti-bacterial, and virucidal, products.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202611-5016 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
17Exact matchLatrobe, PA, United StatesHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“At U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchGreenville, SC, United StatesHQ recorded Nov 6, 20261-1015 contacts →

Exact match

“Mold Testing Lab located in Greenville, SC.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLawndale, CA, United StatesHQ recorded Nov 6, 202611-5015 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
20Exact matchLincolndale, NY, United StatesHQ recorded Nov 6, 20261-1015 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchNaples, FL, United StatesHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Daane Labs is an ISO 17025 accredited lab specializing in traditional and rapid microbiological testing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCarrollton, TX, United StatesHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Moldlab is an accredited environmental testing laboratory based in Dallas, Texas, specializing in fast, accurate mold and asbestos analysis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWeston, FL, United StatesHQ recorded Nov 6, 202611-5013 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
24Exact matchItaly, TX, United StatesHQ recorded Nov 6, 20261-1013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchWinter Park, FL, United StatesHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“Air Quality Assessors (AQA) specializes in mold inspections, allergen testing, and water damage evaluations throughout the state of Florida.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 343 mold testing laboratories based in the United States

See the full list, filter by size, metro and specialty, and access 731 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Mold testing laboratories based in the United States at a glance

As of Nov 6, 2026
33.3%Verified-email coverage
6.4Average contacts per company
1-10Median size (employees)
2.0%Largest-city concentration · Miami
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
236
11-50
84
51-200
18
501-1,000
2
10001+
1

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 343 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 “mold testing laboratories” 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 731 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 “mold testing laboratories”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mold testing laboratories are there based in the United States?

RevenueBase identified 343 company matches for mold testing laboratories 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?

Emsl Analytical, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most mold testing laboratories?

Miami leads with 7 company records, followed by New York (7) and Orlando (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 731 professional contacts with verified work emails tracked across these 343 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.

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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.