Company lists · Data refreshed September 2026

Top 25 Climate research organizations worldwide

Name: Climate research organizations worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 2,982 companies tracked

RevenueBase identified 2,982 climate research organizations worldwide as of September 2026 and tracks 51,683 professional contacts across them, including 17,217 with verified work emails. The United States is the largest market and London the largest hub.

This list covers climate research organizations 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 19, 2026. Country and city lists for climate research organizations 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 19, 2026 86% judged on-target in blind review

2,982Companies

51,683Contacts tracked

17,217Verified emails

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The 25 largest climate research organizations worldwide

Ranked by team size

Top 25 of 2,982 climate research organizations worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to climate research organizations: 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	World Resources Institute	Partial evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,359 contacts →
	Partial evidence “WRI works to improve people’s lives, protect and restore nature and stabilize the climate.” Source: RevenueBase Database · checked Sep 19, 2026
2	Environmental Defense Fund	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,352 contacts →
	Partial evidence “We are Environmental Defense Fund, a leading environmental nonprofit focused on stabilizing the climate while helping build strong and healthy communities.” Source: RevenueBase Database · checked Sep 19, 2026
3	Fraunhofer-Institut FÜR Solare Energiesysteme ISE	Partial evidence	Freiburg, GermanyHQ checked Sep 19, 2026	1,001-5,000	894 contacts →
	Partial evidence “The Fraunhofer Institute for Solar Energy Systems ISE in Freiburg, Germany is the largest solar research institute in Europe.” Source: RevenueBase Database · checked Sep 19, 2026
4	JBA Consulting	Partial evidence	Skipton, United KingdomHQ checked Sep 19, 2026	501-1,000	720 contacts →
	Partial evidence “Leading in society's pursuit for resilience to climate change.” Source: RevenueBase Database · checked Sep 19, 2026
5	Alfred Wegener Institute, Helmholtz Centre For Polar And Marine Research	Partial evidence	Bremerhaven, GermanyHQ checked Sep 19, 2026	1,001-5,000	698 contacts →
	Partial evidence “As the Helmholtz Centre for Polar and Marine Research, the Alfred Wegener Institute is primarily active in the cold and temperate regions of the world.” Source: RevenueBase Database · checked Sep 19, 2026
6	Science Systems And Applications, INC Ssai	Indirect evidence	Lanham, MD, United StatesHQ checked Sep 19, 2026	501-1,000	541 contacts →
	Indirect evidence “Science Systems and Applications, Inc.(SSAI) is a leading provider of science, engineering, and technology solutions for customers who seek new frontiers.” Source: RevenueBase Database · checked Sep 19, 2026
7	German Energy Agency Dena	Partial evidence	Berlin, GermanyHQ checked Sep 19, 2026	501-1,000	500 contacts →
	Partial evidence “dena is a centre of excellence for the applied energy transition and climate protection.” Source: RevenueBase Database · checked Sep 19, 2026
8	Indian Institute Of Tropical Meteorology	Partial evidence	Pune, IndiaHQ checked Sep 19, 2026	501-1,000	495 contacts →
	Partial evidence “IITM is a premiere research Institute to generate scientific knowledge in the field of meteorology and atmospheric sciences that has potential application in various fields such…” Source: RevenueBase Database · checked Sep 19, 2026
9	IVL Swedish Environmental Research Institute	Partial evidence	Stockholm, SwedenHQ checked Sep 19, 2026	201-500	492 contacts →
	Partial evidence “IVL Swedish Environmental Research Institute is an independent, non-profit research organisation owned by a foundation established by the Swedish government and industry.” Source: RevenueBase Database · checked Sep 19, 2026
10	Swiss Federal Institute For Forest, Snow And Landscape Research WSL	Partial evidence	Birmensdorf, SwitzerlandHQ checked Sep 19, 2026	501-1,000	491 contacts →
	Partial evidence “The Swiss Federal Institute for Forest, Snow and Landscape Research WSL provides science-based solutions for forests, landscapes, biodiversity, natural hazards, and snow and ice…” Source: RevenueBase Database · checked Sep 19, 2026
11	Cmcc Foundation	Strong evidence	Lecce, ItalyHQ checked Sep 19, 2026	51-200	472 contacts →
	Strong evidence “The Foundation Euro-Mediterranean Centre on Climate Change (CMCC) is a research centre on climate science and policy.” Source: RevenueBase Database · checked Sep 19, 2026
12	SEI Stockholm Environment Institute	Strong evidence	Stockholm, SwedenHQ checked Sep 19, 2026	201-500	462 contacts →
	Strong evidence “Stockholm Environment Institute – bridging science, policy and practice We are an international non-profit research institute that tackles climate, environment and sustainable…” Source: RevenueBase Database · checked Sep 19, 2026
13	Council On Energy, Environment And Water Ceew	Partial evidence	New Delhi, IndiaHQ checked Sep 19, 2026	201-500	435 contacts →
	Partial evidence “The Council on Energy, Environment and Water (CEEW), a homegrown institution with headquarters in New Delhi, is among the world’s leading climate think tanks.” Source: RevenueBase Database · checked Sep 19, 2026
14	IPCC	Partial evidence	Geneva, SwitzerlandHQ checked Sep 19, 2026	n/a	430 contacts →
	Partial evidence “The Intergovernmental Panel on Climate Change (IPCC) is the leading international body for the assessment of climate change.” Source: RevenueBase Database · checked Sep 19, 2026
15	Geomar Helmholtz-Zentrum FÜR Ozeanforschung Kiel	Partial evidence	Kiel, GermanyHQ checked Sep 19, 2026	1,001-5,000	421 contacts →
	Partial evidence “GEOMAR Helmholtz Centre for Ocean Research Kiel is one of the world's leading institutions in ocean research.” Source: RevenueBase Database · checked Sep 19, 2026
16	PIK	Partial evidence	Potsdam, GermanyHQ checked Sep 19, 2026	201-500	388 contacts →
	Partial evidence “At PIK, researchers in the natural and social sciences from all over the world work closely together to study global change and its impacts on ecological, economic and social…” Source: RevenueBase Database · checked Sep 19, 2026
17	Lynker	Indirect evidence	Leesburg, VA, United StatesHQ checked Sep 19, 2026	501-1,000	363 contacts →
	Indirect evidence “Lynker delivers innovative solutions to support global environmental security and economic prosperity as a trusted partner to governments, communities, and industry.” Source: RevenueBase Database · checked Sep 19, 2026
18	Norwegian Meteorological Institute Meteorologisk Institutt	Strong evidence	Oslo, NorwayHQ checked Sep 19, 2026	501-1,000	333 contacts →
	Strong evidence “Norwegian Meteorological Institute makes weather forecasts, monitor climate and conduct research.” Source: RevenueBase Database · checked Sep 19, 2026
19	Climate Policy Initiative	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	51-200	288 contacts →
	Indirect evidence “CPI is an analysis and advisory organization with deep expertise in finance and policy.” Source: RevenueBase Database · checked Sep 19, 2026
20	OGS	Partial evidence	Trieste, ItalyHQ checked Sep 19, 2026	201-500	269 contacts →
	Partial evidence “OGS is a public internationally oriented research Institute financed by the Italian Ministry of University and Research - MUR, which performs research studies turned to the…” Source: RevenueBase Database · checked Sep 19, 2026
21	Adelphi	Partial evidence	Berlin, GermanyHQ checked Sep 19, 2026	201-500	269 contacts →
	Partial evidence “adelphi consult is a leading independent consultancy specialising in climate, environment and development.” Source: RevenueBase Database · checked Sep 19, 2026
22	Ashoka Trust For Research In Ecology And The Environment	Indirect evidence	Bengaluru, IndiaHQ checked Sep 19, 2026	51-200	253 contacts →
	Indirect evidence “ATREE's mission is to promote socially just environmental conservation and sustainable development by generating rigorous interdisciplinary knowledge that engages actively with…” Source: RevenueBase Database · checked Sep 19, 2026
23	Wuppertal Institute For Climate, Environment And Energy	Partial evidence	Wuppertal, GermanyHQ checked Sep 19, 2026	201-500	249 contacts →
	Partial evidence “The Wuppertal Institute is an implementation-oriented research institute with roots in North Rhine-Westphalia and a global outlook.” Source: RevenueBase Database · checked Sep 19, 2026
24	Institut DE Ciències DEL MAR - Csic	Partial evidence	Barcelona, SpainHQ checked Sep 19, 2026	51-200	239 contacts →
	Partial evidence “The Institut de Ciències del Mar (ICM, Institute of Marine Sciences in English) is the fourth-largest research institute of the Spanish National Research Council (CSIC) and the…” Source: RevenueBase Database · checked Sep 19, 2026
25	Global Factor	Partial evidence	Bilbao, SpainHQ checked Sep 19, 2026	201-500	218 contacts →
	Partial evidence “In Global Factor we started to provide professional services on the subject of climate change in the year 2004, prior to the ratification of the Kyoto Protocol or the…” Source: RevenueBase Database · checked Sep 19, 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 research organizations. 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 research organizations.
Partial evidence: Its own public description names part of climate research organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate research organizations. 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 2,982 climate research organizations worldwide

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Climate research organizations worldwide at a glance

As of Sep 19, 2026

33.3%Verified-email coverage

17.3Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

1,548

11-50

918

51-200

337

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 climate research organizations, 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 climate research organizations are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “climate research organizations”. 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 research organizations), 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 research organizations, 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, 17,217 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 19, 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 research organizations by location

15 lists · largest first

Every Climate research organizations 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 climate research organizations, 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 research organizations are there worldwide?

RevenueBase identified 2,982 climate research organizations 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?

World Resources Institute, headquartered in Washington, tops this list with the largest team on record.

Which country has the most climate research organizations?

The United States leads with 552 companies, followed by the United Kingdom (204) and France (151). Every climate research organizations list by country and city is linked on this page.

Which city has the most climate research organizations?

London leads with 76 headquartered companies, followed by Paris (48) and Washington (44).

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 17,217 verified decision-maker contacts tracked across these 2,982 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 19, 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.