Company lists · Data refreshed September 2026

Top 25 Environmental monitoring software companies based in the United States

There are 484 environmental monitoring software companies headquartered in the United States (RevenueBase, September 2026). RevenueBase tracks 13,069 professional contacts across them, including 5,972 with verified work emails and 4,630 with mobile numbers. Houston is the largest hub.

This list covers environmental monitoring software 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, how directly it supports the match, and when it was last checked. Data refreshed September 2, 2026.

484Companies
13,069Contacts tracked
5,972Verified emails
4,630Mobile numbers
Unlock all 484 companies Free account · no credit card · 2 minutes

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

Ranked by team size
Top 25 of 484 environmental monitoring software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 2, 2026. Evidence rates how directly each company's own description names environmental monitoring software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContactsVerified emails
1
HACHIndirect evidence

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

Source: company website · checked Sep 2, 2026
Romeoville, IL, United States1,001-5,0003,1031,615
2
SpheraIndirect evidence

“Sphera creates a safer, more sustainable and productive world.”

Source: company website · checked Sep 2, 2026
Chicago, IL, United States1,001-5,0001,345925
3
Mesa Laboratories, INCPartial 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: company website · checked Sep 2, 2026
Omaha, NE, United States501-1,000322241
4
PicarroIndirect evidence

“Reducing emissions, detecting leaks, mitigating risk, optimizing operations, ensuring compliance and advancing research are some of the challenges facing our clients.”

Source: company website · checked Sep 2, 2026
Santa Clara, CA, United States201-500298202
5

“Opus Inspection Technologies is a leader in developing, implementing and managing innovative technology and system solutions that enable customers worldwide to address their…”

Source: company website · checked Sep 2, 2026
Brookfield, WI, United States201-50026442
6
Alpha AnalyticalIndirect evidence

“Since 1987, Alpha Analytical, Inc.”

Source: company website · checked Sep 2, 2026
Portsmouth, NH, United States501-1,0002554
7
OTT HydrometIndirect evidence

“OTT HydroMet works to deliver customer outcomes by providing decision makers with vital insights they trust.”

Source: company website · checked Sep 2, 2026
Sterling, VA, United States201-500240163
8
DicksonPartial evidence

“Since 1923, the Dickson Company has helped numerous organizations monitor their most sensitive environments.”

Source: company website · checked Sep 2, 2026
Addison, IL, United States51-20022348
9
Rees ScientificPartial evidence

“Rees Scientific provides continuous automated monitoring to a limitless number of applications in a wide range of industries.”

Source: company website · checked Sep 2, 2026
Trenton, NJ, United States51-200209126
10
Ysi, INCStrong 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: company website · checked Sep 2, 2026
Yellow Springs, OH, United States201-50019630
11
Plateau GRPIndirect evidence

“Plateau Grp provides innovative and agile IT solutions to customer challenges.”

Source: company website · checked Sep 2, 2026
Huntsville, AL, United States51-2001913
12
VMC GroupPartial evidence

“We design & build solutions that allow customers to better manage the negative environmental effects of air, noise, seismic, vibration, & shock.”

Source: company website · checked Sep 2, 2026
Bloomingdale, NJ, United States51-20018555
13
EarthsoftPartial evidence

“EarthSoft is the recognized leader in providing environmental and geotechnical data management and decision support systems for industrial organizations, government agencies…”

Source: company website · checked Sep 2, 2026
Pensacola, FL, United States51-200167104
14
Meter GroupPartial evidence

“METER Group designs and manufactures scientific instrumentation that delivers real-time, environmental data to the agricultural, urban, and research sectors.”

Source: company website · checked Sep 2, 2026
Pullman, WA, United States201-50016790
15

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

Source: company website · checked Sep 2, 2026
Miramar, FL, United States51-20015874
16
Lamotte CompanyPartial evidence

“Since 1919, we are a leading manufacturer of environmental testing equipment for water and soil.”

Source: company website · checked Sep 2, 2026
Chestertown, MD, United States201-50015297
17
Li-CorStrong evidence

“LI-COR is a leader in environmental measurement and monitoring solutions.”

Source: company website · checked Sep 2, 2026
Lincoln, NE, United States201-50013994
18
Metiri GroupPartial evidence

“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…”

Source: company website · checked Sep 2, 2026
Geneva, IL, United States201-50013052
19
120waterIndirect evidence

“120Water is the data management platform purpose-built for water quality and asset compliance.”

Source: company website · checked Sep 2, 2026
Zionsville, IN, United States51-20010870
20
SL CorporationStrong evidence

“SL develops and markets real-time monitoring, visualization and diagnostic software for Global and mid-market companies whose businesses depend on complex, high-performance…”

Source: company website · checked Sep 2, 2026
California, CA, United States51-2001009
21
Locus TechnologiesStrong evidence

“Locus Technologies is the only scientist-driven software company at the nexus of analytical and field data management, Environmental, Health, and Safety (EHS) compliance, and…”

Source: company website · checked Sep 2, 2026
Mountain View, CA, United States51-2009442
22
Aerodyne ResearchPartial evidence

“Aerodyne Research, Inc.(ARI) provides research and development (R&D) services and advanced sensor and software products to industrial, academic and government customers addressing…”

Source: company website · checked Sep 2, 2026
Billerica, MA, United States51-2009244
23
Hobo Data LoggersStrong evidence

“HOBO® Data Loggers, now a part of LI-COR Environmental, has been delivering award-winning environmental monitoring solutions since 1981.”

Source: company website · checked Sep 2, 2026
Bourne, MA, United States51-2008736
24
Source: company website · checked Sep 2, 2026
Fort Myers, FL, United States51-2008354
25
EncampPartial evidence

“Encamp is an enterprise technology company on a mission to create a world in which what’s good for business can be good for the environment.”

Source: company website · checked Sep 2, 2026
Indianapolis, IN, United States51-2008143

Showing 25 of 484 environmental monitoring software companies based in the United States

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

As of Sep 2, 2026
11-50Median size (employees)
HoustonLargest hub · 11 HQs
4,630Contacts with mobile numbers
Sep 2, 2026Data refreshed

Companies by employee count

1-10
216
11-50
179
51-200
60
201-500
18
501-1,000
2
1,001-5,000
4
10001+
2

Environmental monitoring software companies by metro

MetroCompanies
Environmental monitoring software companies in Houston11
Environmental monitoring software companies in San Diego8
Environmental monitoring software companies in San Francisco7
Environmental monitoring software companies in Seattle7
Environmental monitoring software companies in New York6
Environmental monitoring software companies in Fort Collins5
Environmental monitoring software companies in Boulder4
Environmental monitoring software companies in Portland4

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 software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “environmental monitoring software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among environmental monitoring software 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 an evidence rating so you can judge each match yourself.
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, 5,972 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 2, 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.

Frequently asked

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

There are 484 environmental monitoring software companies headquartered in the United States as of September 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most environmental monitoring software companies?

Houston leads with 11 headquartered companies, followed by San Diego (8) and San Francisco (7).

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 5,972 verified decision-maker contacts tracked across these 484 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 2, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.