Company lists · Data refreshed September 2026

Top 25 Drought management consultants worldwide

RevenueBase identified 555 drought management consultants worldwide as of September 2026 and tracks 8,963 professional contacts across them, including 3,491 with verified work emails. The United States is the largest market and Santiago the largest hub.

This list covers drought management consultants worldwide, 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. Country and city lists for drought management consultants follow the table.

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
555Companies
8,963Contacts tracked
3,491Verified emails
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The 25 largest drought management consultants worldwide

Ranked by team size
Top 25 of 555 drought management consultants worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to drought management consultants: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 20261,001-5,0002,100 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceHørsholm, DenmarkHQ checked Sep 28, 20261,001-5,0001,427 contacts →

Indirect evidence

“There is no substitute for water.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceCharlotte, NC, United StatesHQ checked Sep 28, 2026201-500207 contacts →

Indirect evidence

“The trusted advisors for the public sector.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceUberlandia, BrazilHQ checked Sep 28, 202651-200183 contacts →

Indirect evidence

“Somos fascinados pela natureza.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceTucson, AZ, United StatesHQ checked Sep 28, 202651-200126 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceMexico City, MexicoHQ checked Sep 28, 202610001+116 contacts →

Indirect evidence

“Somos líderes en consultoría para proyectos de ingeniería, medioambiente, recursos hídricos y sustentabilidad.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceDenver, CO, United StatesHQ checked Sep 28, 202651-20094 contacts →

Indirect evidence

“LRE Water is now Spheros Environmental.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceMayfield West, AustraliaHQ checked Sep 28, 202651-20093 contacts →

Indirect evidence

“Beca HunterH2O is a diverse, empowered, and trusted team of 300+ water specialists, passionate about healthy and sustainable communities wherever we work.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidencePorto Alegre, BrazilHQ checked Sep 28, 202651-20086 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceDavis, CA, United StatesHQ checked Sep 28, 202651-20079 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceMinato-ku, JapanHQ checked Sep 28, 20261,001-5,00073 contacts →

Partial evidence

“Water and Environmental Consultancy and Software Services Life is unsustainable without access to reliable water source and humans are threatened by climate change, altering…”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceSantiago, ChileHQ checked Sep 28, 202651-20073 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceClare, AustraliaHQ checked Sep 28, 202651-20070 contacts →

Partial evidence

“As an Australian-owned consultancy company specialising in agribusiness, water and environment, Pinion Advisory unlocks the potential in our people, our clients and our natural…”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceSantiago, ChileHQ checked Sep 28, 202611-5068 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidencePortland, OR, United StatesHQ checked Sep 28, 202651-20066 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
16Strong evidenceUtrecht, NetherlandsHQ checked Sep 28, 202651-20065 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceArgonay, FranceHQ checked Sep 28, 202651-20064 contacts →

Indirect evidence

“HYDRETUDES est un bureau d’études spécialisé dans l’ingénierie de l’eau, des risques naturels et de l’environnement.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceLa Plata, ArgentinaHQ checked Sep 28, 202651-20059 contacts →

Indirect evidence

“HIDROAR S.A.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceRiyadh, Saudi ArabiaHQ checked Sep 28, 2026501-1,00058 contacts →

Indirect evidence

“We are one of the companies within Al Mousa Group, a Saudi Arabian conglomerate with over 50 years of experience in the Saudi market.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceBogota, ColombiaHQ checked Sep 28, 2026n/a58 contacts →

Indirect evidence

“Gestión Ingeniería de Colombia S.A.S.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceParis, FranceHQ checked Sep 28, 202651-20056 contacts →

Partial evidence

“PROLOG INGENIERIE is a consulting engineering firm at the forefront of water management and remote-controlled systems, committed to enhancing water quality and environmental…”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceCairo, EgyptHQ checked Sep 28, 202651-20049 contacts →

Indirect evidence

“Water Engineering and environmental consultations>”

Source: RevenueBase Database · checked Sep 28, 2026
23Strong evidenceBrisbane City, AustraliaHQ checked Sep 28, 202611-5047 contacts →

Strong evidence

“WRM Water & Environment is a world-class consultancy specialising in flooding, water resource engineering and water management.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceMedellín, ColombiaHQ checked Sep 28, 202651-20047 contacts →

Indirect evidence

“Consultoria especializada.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceProvidencia, ChileHQ checked Sep 28, 202611-5045 contacts →

Partial evidence

“The administration and management of water is a fundamental factor for the development of countries.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 555 drought management consultants worldwide

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Drought management consultants worldwide at a glance

As of Sep 28, 2026
38.9%Verified-email coverage
16.1Average contacts per company
1-10Median size (employees)
2.2%Largest-city concentration · Santiago
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
363
11-50
144
51-200
34
201-500
4
501-1,000
2
1,001-5,000
4
10001+
1

Email recency is reported on each country list linked below.

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 drought management consultants, 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.
Coverage
Every country. Country and city lists for drought management consultants are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “drought management consultants”. 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 drought management consultants), 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 drought management consultants, and records with no verified work email.
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, 3,491 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.

Drought management consultants by location

4 lists · largest first

Every Drought management consultants 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 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 drought management consultants, 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 drought management consultants are there worldwide?

RevenueBase identified 555 drought management consultants worldwide 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?

Hazen And Sawyer, headquartered in New York, tops this list with the largest team on record.

Which country has the most drought management consultants?

The United States leads with 134 companies, followed by Australia (36) and Brazil (29). Every drought management consultants list by country and city is linked on this page.

Which city has the most drought management consultants?

Santiago leads with 12 headquartered companies, followed by Denver (8) and Lima (5).

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 3,491 verified decision-maker contacts tracked across these 555 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.