Company lists · Data refreshed August 2026

Top 25 Climate resilience consulting firms worldwide

Name: Climate resilience consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 8,701 companies tracked

RevenueBase identified 8,701 climate resilience consulting firms worldwide as of August 2026 and tracks 307,221 professional contacts across them, including 130,602 with verified work emails and 59,486 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers climate resilience consulting firms 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 August 31, 2026. Country and city lists for climate resilience consulting firms 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

8,701Companies

307,221Contacts tracked

130,602Verified emails

59,486Mobile numbers

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The 25 largest climate resilience consulting firms worldwide

Ranked by team size

Top 25 of 8,701 climate resilience consulting firms worldwide, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to climate resilience consulting firms: 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	AECOM	Indirect evidence	Peterborough, GB	10001+	64,359 contacts →
	Indirect evidence “AECOM is the global infrastructure leader, committed to delivering a better world.” Source: RevenueBase Database · checked Aug 31, 2026
2	Arcadis	Indirect evidence	Croydon, GB	10001+	33,933 contacts →
	Indirect evidence “Arcadis is a leading global partner, delivering transformative projects with businesses, cities and industries.” Source: RevenueBase Database · checked Aug 31, 2026
3	Stantec	Indirect evidence	Edmonton, AB, CA	10001+	28,492 contacts →
	Indirect evidence “Stantec empowers clients, people, and communities to rise to the world’s greatest challenges at a time when the world faces more unprecedented concerns than ever before.” Source: RevenueBase Database · checked Aug 31, 2026
4	Tetra Tech	Partial evidence	Pasadena, CA, US	10001+	13,066 contacts →
	Partial evidence “Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide.” Source: RevenueBase Database · checked Aug 31, 2026
5	WSP In The U.S	Indirect evidence	New York, NY, US	10001+	9,318 contacts →
	Indirect evidence “What if you could shape built and natural environments – and the future of those that use them?” Source: RevenueBase Database · checked Aug 31, 2026
6	Oliver Wyman	Indirect evidence	Wein, AT	5,001-10,000	8,336 contacts →
	Indirect evidence “At Oliver Wyman, a Marsh business, we bring deep industry insight, bold innovation, and a collaborative approach that cuts through complexity to help organizations navigate their…” Source: RevenueBase Database · checked Aug 31, 2026
7	APTIM	Partial evidence	Wichita, KS, US	1,001-5,000	2,644 contacts →
	Partial evidence “APTIM enhances the quality of the environment, wellbeing of people, resilience of communities, and opportunity for employees to make a difference, not just a living.” Source: RevenueBase Database · checked Aug 31, 2026
8	Geosyntec Consultants	Partial evidence	Boca Raton, FL, US	1,001-5,000	2,392 contacts →
	Partial evidence “Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural…” Source: RevenueBase Database · checked Aug 31, 2026
9	Baringa	Partial evidence	New York, NY, US	1,001-5,000	2,198 contacts →
	Partial evidence “Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Source: RevenueBase Database · checked Aug 31, 2026
10	Ricardo	Partial evidence	California, MD, US	1,001-5,000	2,111 contacts →
	Partial evidence “Ricardo, a member of @WSP, is a global strategic, environmental, and engineering consulting company.” Source: RevenueBase Database · checked Aug 31, 2026
11	Hazen And Sawyer	Indirect evidence	Raleigh, NC, US	1,001-5,000	2,105 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 Aug 31, 2026
12	Cerema	Partial evidence	Lyon, FR	1,001-5,000	1,955 contacts →
	Partial evidence “Le Cerema, référent public en aménagement, accompagne l’État, les collectivités et les entreprises pour adapter les territoires au changement climatique.” Source: RevenueBase Database · checked Aug 31, 2026
13	Jensen Hughes	Indirect evidence	Greenville, SC, US	1,001-5,000	1,642 contacts →
	Indirect evidence “Worldwide, we are most recognized for our leadership in fire protection engineering, a tradition of responsibility we have advanced with pride since 1939.” Source: RevenueBase Database · checked Aug 31, 2026
14	Swca Environmental Consultants	Partial evidence	Phoenix, AZ, US	1,001-5,000	1,618 contacts →
	Partial evidence “Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Source: RevenueBase Database · checked Aug 31, 2026
15	Exponent	Partial evidence	London, GB	1,001-5,000	1,561 contacts →
	Partial evidence “In an era of accelerating change, Exponent is the only premium engineering and scientific consulting firm with the depth and breadth of expertise to solve our clients’ most…” Source: RevenueBase Database · checked Aug 31, 2026
16	Antea Group Nederland	Indirect evidence	Capelle Aan Den Ijssel, NL	1,001-5,000	1,425 contacts →
	Indirect evidence “Antea Group is het thuis van 1800 trotse ingenieurs en adviseurs.” Source: RevenueBase Database · checked Aug 31, 2026
17	DHI	Indirect evidence	Richmond, BC, CA	1,001-5,000	1,415 contacts →
	Indirect evidence “There is no substitute for water.” Source: RevenueBase Database · checked Aug 31, 2026
18	IPE Global Limited	Indirect evidence	New Delhi, IndiaHQ checked Aug 31, 2026	501-1,000	1,322 contacts →
	Indirect evidence “Headquartered in India with six international offices in Cambodia, Ethiopia, Kenya, the Philippines, Germany and the United Kingdom, IPE Global Group offers a range of integrated…” Source: RevenueBase Database · checked Aug 31, 2026
19	Pennoni	Indirect evidence	Haddon Heights, NJ, US	1,001-5,000	1,255 contacts →
	Indirect evidence “Since our founding more than five decades ago, our clients trust Pennoni’s commitment to elevating the impact of projects on our communities.” Source: RevenueBase Database · checked Aug 31, 2026
20	Ardurra	Indirect evidence	Flagstaff, AZ, US	1,001-5,000	1,248 contacts →
	Indirect evidence “Expertly balancing experience and innovation to deliver unique solutions to public and private clients.” Source: RevenueBase Database · checked Aug 31, 2026
21	IEM	Partial evidence	Baton Rouge, LA, US	501-1,000	1,173 contacts →
	Partial evidence “IEM is a professional services firm dedicated to building a safe, secure, and resilient world.” Source: RevenueBase Database · checked Aug 31, 2026
22	Apex Companies	Indirect evidence	Rockville, MD, US	1,001-5,000	1,146 contacts →
	Indirect evidence “Who is Apex?” Source: RevenueBase Database · checked Aug 31, 2026
23	Haley & Aldrich	Indirect evidence	Burlington, MA, US	501-1,000	1,128 contacts →
	Indirect evidence “Haley & Aldrich is committed to solving our clients’ most meaningful challenges in the built and natural environments.” Source: RevenueBase Database · checked Aug 31, 2026
24	Verdantas	Indirect evidence	Toledo, OH, US	1,001-5,000	1,127 contacts →
	Indirect evidence “At Verdantas, we blend engineering and environmental science together with advanced technology and world-renowned labs to create solutions with the big picture in mind.” Source: RevenueBase Database · checked Aug 31, 2026
25	BTP Consultants	Indirect evidence	Pessac, FR	201-500	1,069 contacts →
	Indirect evidence “BTP Consultants est un bureau de ̂, et présent à l'échelle nationale depuis plus de.” Source: RevenueBase Database · checked Aug 31, 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: climate resilience consulting firms. 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 climate resilience consulting firms.
Partial evidence: Its own public description names part of climate resilience consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate resilience consulting firms. 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 8,701 climate resilience consulting firms worldwide

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Climate resilience consulting firms worldwide at a glance

As of Aug 31, 2026

42.5%Verified-email coverage

19.4%Mobile-number coverage

35.3Average contacts per company

1-10Median size (employees)

3.2%Largest-city concentration · London

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

6,061

11-50

1,971

51-200

436

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 climate resilience consulting firms, 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: 37 countries, largest first: the United States, the United Kingdom, France, Brazil, Australia, Canada, India, Germany, Spain, the Netherlands and 27 more. Country and city lists for climate resilience consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “climate resilience consulting firms”. 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 climate resilience consulting firms), 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 climate resilience consulting firms, 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, 130,602 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 between August 31, 2026 and September 14, 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.

Climate resilience consulting firms by location

70 lists · largest first

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

Countries

Cities

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 climate resilience consulting firms, 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 climate resilience consulting firms are there worldwide?

RevenueBase identified 8,701 climate resilience consulting firms worldwide as of August 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?

AECOM, headquartered in Peterborough, tops this list with the largest team on record.

Which country has the most climate resilience consulting firms?

The United States leads with 1,962 companies, followed by the United Kingdom (756) and France (681). Every climate resilience consulting firms list by country and city is linked on this page.

Which city has the most climate resilience consulting firms?

London leads with 277 headquartered companies, followed by Paris (167) and Sao Paulo (115).

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 130,602 verified decision-maker contacts tracked across these 8,701 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between August 31, 2026 and September 14, 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.