Company lists · Data refreshed September 2026

Top 25 Environmental monitoring analytics companies based in the United States

Name: Environmental monitoring analytics companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,173 companies tracked

RevenueBase identified 1,173 environmental monitoring analytics companies headquartered in the United States as of September 2026 and tracks 31,870 professional contacts across them, including 11,051 with verified work emails. Houston is the largest hub.

This list covers environmental monitoring analytics companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

1,173Companies

31,870Contacts tracked

11,051Verified emails

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The 25 largest environmental monitoring analytics companies based in the United States

Ranked by team size

Top 25 of 1,173 environmental monitoring analytics companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to environmental monitoring analytics companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	HACH	Indirect evidence	Loveland, CO, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,095 contacts →
	Indirect evidence “At Hach, we ensure water quality for people around the world, and every associate plays a vital role in that mission.” Source: RevenueBase Database · checked Sep 28, 2026
2	Pace Analytical Services	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,228 contacts →
	Indirect evidence “Pace® Science and Technology Company makes the world a safer, healthier place.” Source: RevenueBase Database · checked Sep 28, 2026
3	Alliance Technical Group	Partial evidence	Decatur, AL, United StatesHQ checked Sep 28, 2026	1,001-5,000	956 contacts →
	Partial evidence “Alliance is a new kind of environmental services company-powered by innovation, focused on service, and committed to client success.” Source: RevenueBase Database · checked Sep 28, 2026
4	Emsl Analytical, INC	Strong evidence	Cinnaminson, NJ, United StatesHQ checked Sep 28, 2026	501-1,000	719 contacts →
	Strong evidence “As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.” Source: RevenueBase Database · checked Sep 28, 2026
5	Pinnacle	Indirect evidence	Pasadena, TX, United StatesHQ checked Sep 28, 2026	501-1,000	658 contacts →
	Indirect evidence “Headquartered in Pasadena, Texas, Pinnacle is exclusively focused on helping industrial facilities in the oil and gas, chemical, mining, and water and wastewater industries better…” Source: RevenueBase Database · checked Sep 28, 2026
6	Mesa Laboratories, INC	Partial evidence	Lakewood, CO, United StatesHQ checked Sep 28, 2026	501-1,000	323 contacts →
	Partial evidence “Mesa Labs helps you monitor and maintain higher standards in any environment – from the air we breathe to the critical moments of life-saving care.” Source: RevenueBase Database · checked Sep 28, 2026
7	Cimarron	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	501-1,000	306 contacts →
	Indirect evidence “With decades of operating history and innovation across our trusted brands, Cimarron provides technology-driven emissions management solutions for the global energy system.” Source: RevenueBase Database · checked Sep 28, 2026
8	Picarro	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 28, 2026	201-500	297 contacts →
	Indirect evidence “Reducing emissions, detecting leaks, mitigating risk, optimizing operations, ensuring compliance and advancing research are some of the challenges facing our clients.” Source: RevenueBase Database · checked Sep 28, 2026
9	Alpha Analytical	Partial evidence	Westborough, MA, United StatesHQ checked Sep 28, 2026	501-1,000	254 contacts →
	Partial evidence “Since 1987, Alpha Analytical, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
10	Environmental Works, INC	Partial evidence	Springfield, MO, United StatesHQ checked Sep 28, 2026	201-500	238 contacts →
	Partial evidence “Environmental Works, Inc.(EWI) offers truly comprehensive environmental solutions for a variety of industries, businesses, and municipalities.” Source: RevenueBase Database · checked Sep 28, 2026
11	Metiri Group	Partial evidence	Clovis, CA, United StatesHQ checked Sep 28, 2026	n/a	233 contacts →
	Partial evidence “Appl Inc is an environmental services company based out of 908 N Temperance Ave, Clovis, CA, United States.” Source: RevenueBase Database · checked Sep 28, 2026
12	OTT Hydromet	Indirect evidence	Sterling, VA, United StatesHQ checked Sep 28, 2026	201-500	231 contacts →
	Indirect evidence “OTT HydroMet works to deliver customer outcomes by providing decision makers with vital insights they trust.” Source: RevenueBase Database · checked Sep 28, 2026
13	Dickson	Partial evidence	Addison, IL, United StatesHQ checked Sep 28, 2026	51-200	223 contacts →
	Partial evidence “Since 1923, the Dickson Company has helped numerous organizations monitor their most sensitive environments.” Source: RevenueBase Database · checked Sep 28, 2026
14	Rees Scientific	Partial evidence	Trenton, NJ, United StatesHQ checked Sep 28, 2026	51-200	210 contacts →
	Partial evidence “Rees Scientific provides continuous automated monitoring to a limitless number of applications in a wide range of industries.” Source: RevenueBase Database · checked Sep 28, 2026
15	Ysi, INC	Strong evidence	Yellow Springs, OH, United StatesHQ checked Sep 28, 2026	201-500	194 contacts →
	Strong evidence “YSI is the maker of environmental, laboratory, and municipal monitoring instruments, sensors, software, systems, and data collection platforms for water quality monitoring and…” Source: RevenueBase Database · checked Sep 28, 2026
16	GEL Laboratories, LLC	Strong evidence	Charleston, SC, United StatesHQ checked Sep 28, 2026	201-500	190 contacts →
	Strong evidence “Since 1981, GEL Laboratories has been a leading provider of comprehensive and reliable analytical services to the environmental industry including chemical, radiochemical…” Source: RevenueBase Database · checked Sep 28, 2026
17	BAY West LLC	Partial evidence	St. Paul, MN, United StatesHQ checked Sep 28, 2026	201-500	187 contacts →
	Partial evidence “Bay West is an environmental and industrial services provider for site investigations, groundwater and soil remediation, munitions cleanup, hazardous waste management, industrial…” Source: RevenueBase Database · checked Sep 28, 2026
18	Enviroscience, INC	Partial evidence	Stow, OH, United StatesHQ checked Sep 28, 2026	51-200	176 contacts →
	Partial evidence “EnviroScience is a team of over 150 expert biologists, commercial divers, environmental engineers, and environmental scientists that provides biomonitoring, environmental…” Source: RevenueBase Database · checked Sep 28, 2026
19	LWS Lighthouse Worldwide Solutions	Indirect evidence	White City, OR, United StatesHQ checked Sep 28, 2026	201-500	175 contacts →
	Indirect evidence “When you need to monitor your cleanroom for contamination, Lighthouse is your premier solution provider.” Source: RevenueBase Database · checked Sep 28, 2026
20	Carbon Direct	Indirect evidence	New York, United StatesHQ checked Sep 28, 2026	51-200	172 contacts →
	Indirect evidence “Carbon Direct is a trusted energy and climate solutions company that combines world-class scientific expertise, technical rigor, and market insights to help clients achieve their…” Source: RevenueBase Database · checked Sep 28, 2026
21	In-Situ Environmental	Partial evidence	Fort Collins, CO, United StatesHQ checked Sep 28, 2026	201-500	170 contacts →
	Partial evidence “In-Situ simplifies water monitoring for surface water, coastal, groundwater, aquaculture, drinking water and wastewater applications with reliable, low-maintenance instrumentation…” Source: RevenueBase Database · checked Sep 28, 2026
22	TASC	Indirect evidence	Seabrook, TX, United StatesHQ checked Sep 28, 2026	201-500	161 contacts →
	Indirect evidence “Automation and Technology Group: Specializing in Analyzer System Integration.” Source: RevenueBase Database · checked Sep 28, 2026
23	Advanced Environmental Laboratories, INC	Partial evidence	Jacksonville, FL, United StatesHQ checked Sep 28, 2026	51-200	158 contacts →
	Partial evidence “Advanced Environmental Laboratories, Inc.(AEL) is a NELAP/TNI and DOD certified, national full-service laboratory firm, headquartered in Jacksonville, Florida, with additional…” Source: RevenueBase Database · checked Sep 28, 2026
24	AEM	Partial evidence	Germantown, MD, United StatesHQ checked Sep 28, 2026	201-500	157 contacts →
	Partial evidence “AEM (https://aem.eco) is combining global technology leaders to empower communities and organizations to survive and thrive in the face of escalating environment risks.” Source: RevenueBase Database · checked Sep 28, 2026
25	Lamotte Company	Partial evidence	Chestertown, MD, United StatesHQ checked Sep 28, 2026	201-500	154 contacts →
	Partial evidence “Since 1919, we are a leading manufacturer of environmental testing equipment for water and soil.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: environmental monitoring analytics companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names environmental monitoring analytics companies.
Partial evidence: Its own public description names part of environmental monitoring analytics companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental monitoring analytics companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,173 environmental monitoring analytics companies based in the United States

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Environmental monitoring analytics companies based in the United States at a glance

As of Sep 28, 2026

34.7%Verified-email coverage

27.2Average contacts per company

11-50Median size (employees)

2.9%Largest-city concentration · Houston

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

542

11-50

436

51-200

139

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,173 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among environmental monitoring analytics companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “environmental monitoring analytics companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names environmental monitoring analytics companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among environmental monitoring analytics companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 11,051 across the full list. 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 September 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Environmental monitoring analytics companies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names environmental monitoring analytics companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many environmental monitoring analytics companies are there based in the United States?

RevenueBase identified 1,173 environmental monitoring analytics companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

HACH, headquartered in Loveland, tops this list with the largest team on record.

Which city has the most environmental monitoring analytics companies?

Houston leads with 34 headquartered companies, followed by New York (28) and San Francisco (26).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 11,051 verified decision-maker contacts tracked across these 1,173 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 Smart Search, 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.