Company lists · Data refreshed November 2026

Top 25 Hydrologic modeling firms worldwide

RevenueBase identified 989 company matches for hydrologic modeling firms worldwide as of November 2026 and tracks 13,664 professional contacts across them, including 5,325 with verified work emails. The United States is the largest market and Austin the largest hub.

This list covers company matches for hydrologic modeling firms worldwide, 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. Country and city lists for hydrologic modeling firms follow the table.

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
989Companies
13,664Contacts tracked
5,325Verified emails
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The 25 largest hydrologic modeling firms worldwide

Ranked by team size
Top 25 of 989 company matches for hydrologic modeling firms worldwide, 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 matchNew York, CO, United StatesHQ recorded Nov 6, 20261,001-5,0002,306 contacts →

Exact match

“As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchHørsholm, DenmarkHQ recorded Nov 6, 20261,001-5,0001,544 contacts →

Exact match

“There is no substitute for water.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSeattle, WA, United StatesHQ recorded Nov 6, 2026501-1,000503 contacts →

Exact match

“Headquartered in Seattle, Washington, Anchor QEA is a nationally recognized environmental science and engineering consulting firm specializing in aquatic, shoreline, and water…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchEdmonton, BC, CanadaHQ recorded Nov 6, 202651-200217 contacts →

Exact match

“As the effects of climate change advance across the world, understanding water and its many functions in both natural and built environments has never been more urgent.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchScottsdale, NM, United StatesHQ recorded Nov 6, 202651-200148 contacts →

Exact match

“Water Works Engineers is a leading civil and environmental engineering firm specializing in innovative and sustainable solutions for water infrastructure projects across the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchTucson, CA, United StatesHQ recorded Nov 6, 202651-200133 contacts →

Exact match

“M&A is a water resource consulting firm that partners with clients to address their evolving water resource challenges.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchCalgary, BC, CanadaHQ recorded Nov 6, 202651-200118 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBelo Horizonte, BrazilHQ recorded Nov 6, 202651-200117 contacts →

Exact match

“Water Services and Technologies is a company specialized in hydrogeology and environmental services, which values technical quality, safety and excellence, always seeking to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAnn Arbor, MN, United StatesHQ recorded Nov 6, 202651-20099 contacts →

Exact match

“Vision: We are engineers and scientists who have a passion for sustainable, clean water.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchAlbuquerque, TX, United StatesHQ recorded Nov 6, 202651-20088 contacts →

Exact match

“Daniel B.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSan Diego, AZ, United StatesHQ recorded Nov 6, 202651-20086 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchFountain Valley, CA, United StatesHQ recorded Nov 6, 202651-20086 contacts →

Exact match

“PACE is a civil engineering firm offering advanced water resource services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchPorto Alegre, BrazilHQ recorded Nov 6, 202651-20085 contacts →

Exact match

“For over 20 years, we have developed engineering solutions for the most complex environmental challenges in Brazil and around the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchDavis, CA, United StatesHQ recorded Nov 6, 202651-20081 contacts →

Exact match

“Larry Walker Associates (LWA) is a privately owned firm headquartered in Davis, California, with offices in Berkeley, Yreka, Santa Monica, Ventura, San Diego, and Seattle, WA.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSantiago, ChileHQ recorded Nov 6, 202651-20080 contacts →

Exact match

“Somos consultores en Ciencias de la Tierra, especialistas en recursos hídricos y minerales en fase acuosa.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHood River, MA, IndiaHQ recorded Nov 6, 202651-20079 contacts →

Exact match

“Since 1984, Inter-Fluve has been a leading water resources science and engineering firm specializing in river restoration.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchTrenton, NJ, United StatesHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“Experience, Expertise and Excellence in Water Resources, Ecology, and Geotechnical Engineering.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSantiago, ChileHQ recorded Nov 6, 202611-5072 contacts →

Exact match

“ICASS es una empresa que entrega los servicios de consultoría e ingeniería en aguas superficiales y subterráneas, tanto en la evaluación del recurso hídrico como en la gestión del…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchPortland, OR, United StatesHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“GSI Water Solutions, Inc, is a specialized groundwater, environmental, and water resources consulting firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchUtrecht, NetherlandsHQ recorded Nov 6, 202651-20067 contacts →

Exact match

“Nelen & Schuurmans is a water management consultancy & IT company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchParque Das Nações, PortugalHQ recorded Nov 6, 202651-20067 contacts →

Exact match

“AQUALOGUS was established in 1996 by engineering consultants with a vast experience in the development of studies and projects in the fields of water resources, hydraulics…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMontpelier, VT, United StatesHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“Stone Environmental is a 100% employee-owned environmental science and engineering firm based in Montpelier, Vermont.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchDenver, CO, United StatesHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“LRE Water is now Spheros Environmental.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchDenver, CO, United StatesHQ recorded Nov 6, 202611-5064 contacts →

Exact match

“Wright Water Engineers, Inc.(WWE) is a water resources consulting engineering firm that was founded in 1961.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSacramento, CA, United StatesHQ recorded Nov 6, 202651-20063 contacts →

Exact match

“Located in Sacramento, California, MBK Engineers (formerly Murray, Burns & Kienlen, Consulting Civil Engineers) has provided clients with complete engineering and consulting…”

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

Showing 25 of 989 hydrologic modeling firms worldwide

See the full list, filter by size, metro and specialty, and access 5,325 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrologic modeling firms worldwide at a glance

As of Nov 6, 2026
39.0%Verified-email coverage
13.8Average contacts per company
1-10Median size (employees)
0.9%Largest-city concentration · Austin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
669
11-50
246
51-200
53
201-500
8
501-1,000
1
1,001-5,000
4
10001+
1

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for hydrologic modeling firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “hydrologic modeling firms” 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. 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 5,325 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.

Hydrologic modeling firms by location

8 lists · largest first

Every Hydrologic modeling firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “hydrologic modeling firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydrologic modeling firms are there worldwide?

RevenueBase identified 989 company matches for hydrologic modeling firms worldwide 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?

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

Which country has the most hydrologic modeling firms?

The United States leads with 307 companies, followed by France (49) and Australia (47). Every hydrologic modeling firms list by country and city is linked on this page.

Which city has the most hydrologic modeling firms?

Austin leads with 9 company records, followed by Lima (9) and Portland (9).

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 5,325 professional contacts with verified work emails tracked across these 989 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.