Company lists · Data refreshed November 2026

Top 25 Water quality testing contractors based in the United States

RevenueBase identified 415 company matches for water quality testing contractors associated with the United States as of November 2026 and tracks 8,207 professional contacts across them, including 3,146 with verified work emails. Las Vegas is the largest hub.

This list covers company matches for water quality testing contractors 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
415Companies
8,207Contacts tracked
3,146Verified emails
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The 25 largest water quality testing contractors based in the United States

Ranked by team size
Top 25 of 415 company matches for water quality testing contractors 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 matchLoveland, IL, United StatesHQ recorded Nov 6, 20261,001-5,0003,297 contacts →

Exact match

“At Hach, we ensure water quality for people around the world, and every associate plays a vital role in that mission.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNiles, WI, United StatesHQ recorded Nov 6, 2026201-500255 contacts →

Exact match

“Deibel Laboratories started in 1967 by Dr.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWestborough, NY, United StatesHQ recorded Nov 6, 2026501-1,000243 contacts →

Exact match

“Since 1987, Alpha Analytical, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchJacksonville, FL, United StatesHQ recorded Nov 6, 202651-200179 contacts →

Exact match

“Advanced Environmental Laboratories, Inc.(AEL) is a NELAP/TNI and DOD certified, national full-service laboratory firm, headquartered in Jacksonville, Florida, with additional…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchGeneva, IL, United StatesHQ recorded Nov 6, 2026201-500158 contacts →

Exact match

“Established in 2019, Metiri Group has focused on using full-service environmental laboratories to deliver testing services to inform the decisions that improve the lives of people…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBillings, WY, United StatesHQ recorded Nov 6, 2026201-500124 contacts →

Exact match

“Founded in 1952, Energy Laboratories, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchHouston, AZ, United StatesHQ recorded Nov 6, 202651-20080 contacts →

Exact match

“We Love Water At Dupure, we love what we do: we help families obtain great-tasting, nutritious water right in their own homes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCollinsville, IL, United StatesHQ recorded Nov 6, 2026201-50079 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchManchester, CT, United StatesHQ recorded Nov 6, 202651-20078 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact 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
11Exact matchGarner, NC, United StatesHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“Kinetico Advanced Water Systems helps you understand and fix your water issues through custom analysis and tailored solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMt Juliet, TN, United StatesHQ recorded Nov 6, 2026201-50066 contacts →

Exact match

“The Pace Analytical National Center for Testing and Innovation is the only environmental laboratory certified to support your work nationwide from one location.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCity Of Industry, CA, United StatesHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“Weck Laboratories Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchRiverside, CA, United StatesHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“Babcock Laboratories, Inc.(Babcock Labs) is a full service commercial laboratory that analyzes drinking water, wastewater, stormwater, food and beverages, groundwater, soil, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchRochester, NY, United StatesHQ recorded Nov 6, 202651-20059 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHillside, NJ, United StatesHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“At Garden State Laboratories, Inc, we contribute to the protection of public health and safety.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchFremont, CA, United StatesHQ recorded Nov 6, 202611-5055 contacts →

Exact match

“AEMTEK is a high quality, third party laboratory that provides testing, research, training, consulting services, and sampling products for the food, environmental, water…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchConroe, TX, United StatesHQ recorded Nov 6, 202651-20052 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchPittsburg, CA, United StatesHQ recorded Nov 6, 202651-20049 contacts →

Exact match

“Located in the San Francisco Bay Area (Pittsburg), McCampbell Analytical tests drinking water, effluent, soils, solids, hazardous waste, air, industrial materials and food for a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchWestmont, IL, United StatesHQ recorded Nov 6, 202611-5048 contacts →

Exact match

“LiquiTech is a leading provider of advanced water intelligence solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchPhoenix, AZ, United StatesHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“NCS is an experienced water and wastewater engineering consulting firm with offices in Arizona, Maryland, Nevada, New Mexico and California.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSpringfield, MO, United StatesHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“PDC Laboratories provides quality control, sample collection and other environmental testing services in a range of applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“A&B Environmental Services, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchWheeling, IL, United StatesHQ recorded Nov 6, 202611-5042 contacts →

Exact match

“Swan is a leading provider of on-line analytical systems in the water industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAkron, OH, United StatesHQ recorded Nov 6, 202651-20041 contacts →

Exact match

“Clearwater Systems is proud to be a company providing customers with great water for their homes and businesses.”

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

Showing 25 of 415 water quality testing contractors based in the United States

See the full list, filter by size, metro and specialty, and access 3,146 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water quality testing contractors based in the United States at a glance

As of Nov 6, 2026
38.3%Verified-email coverage
19.8Average contacts per company
11-50Median size (employees)
1.2%Largest-city concentration · Las Vegas
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
188
11-50
152
51-200
59
201-500
9
501-1,000
2
1,001-5,000
2

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 415 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 “water quality testing contractors” 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 3,146 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 “water quality testing contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water quality testing contractors are there based in the United States?

RevenueBase identified 415 company matches for water quality testing contractors 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?

HACH tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most water quality testing contractors?

Las Vegas leads with 5 company records, followed by New York (5) and Baltimore (3).

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 3,146 professional contacts with verified work emails tracked across these 415 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.