Company lists · Data refreshed September 2026
Top 25 Think tanks worldwide
RevenueBase identified 1,846 company matches for think tanks worldwide as of September 2026 and tracks 35,763 professional contacts across them, including 8,443 with verified work emails. The United States is the largest market and Washington the largest hub.
This list covers company matches for think tanks 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 September 22, 2026. Country and city lists for think tanks 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.
The 25 largest think tanks worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,660 contacts → | ||||
Exact match “RAND is a nonprofit, nonpartisan research organization that provides leaders with the information they need to make evidence-based decisions.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 2 | 937 contacts → | ||||
Exact match “The Center for Strategic and International Studies (CSIS) is a bipartisan, nonprofit policy research organization dedicated to advancing practical ideas to address the world’s…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 3 | 888 contacts → | ||||
Exact match “The Atlantic Council promotes constructive leadership and engagement in international affairs based on the central role of the Atlantic Community in meeting global challenges.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 4 | 867 contacts → | ||||
Exact match “The mission of Chatham House is to be a world-leading source of independent analysis, informed debate and influential ideas on how to build a prosperous and secure world for all.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 5 | 695 contacts → | ||||
Exact match “Founded in 1973, The Heritage Foundation is a research and educational institution-a think tank-whose mission is to formulate and promote conservative public policies based on the…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 6 | 313 contacts → | ||||
Exact match “The Royal United Services Institute (RUSI) is a unique institution, founded in 1831 by the Duke of Wellington, RUSI embodies nearly two centuries of forward thinking, free…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 7 | 311 contacts → | ||||
Exact match “The Carnegie Endowment for International Peace generates strategic ideas and independent analysis, supports diplomacy, and trains the next generation of scholar-practitioners to…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 8 | 285 contacts → | ||||
Exact match “Set up in 1990, ORF seeks to lead and aid policy thinking towards building a strong and prosperous India in a fair and equitable world.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 9 | 243 contacts → | ||||
Exact match “The Stimson Center promotes international security and shared prosperity through applied research and independent analysis, global engagement, and policy innovation.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 10 | 237 contacts → | ||||
Exact match “Pew Research Center is a nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping the world.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 11 | 227 contacts → | ||||
Exact match “Thailand’s most respected economic think-tank with 30 years of policy research experiences.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 12 | 222 contacts → | ||||
Exact match “Hudson Institute is a research-focused public policy think tank headquartered in Washington, DC, dedicated to promoting American leadership for a secure, free, and prosperous…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 13 | 222 contacts → | ||||
Exact match “RAND Europe is a not-for-profit research institute whose mission is to help improve policy and decision making through research and analysis.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 14 | 221 contacts → | ||||
Exact match “Founded in Brussels in 1983, the Centre for European Policy Studies (CEPS) is among the most experienced and authoritative think tanks operating in the European Union today.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 15 | 215 contacts → | ||||
Exact match “The Vidhi Centre for Legal Policy is an independent think-tank doing legal research to make better laws and improve governance for the public good.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 16 | 207 contacts → | ||||
Exact match “CSTEP is one of India’s leading think tanks, with a mission to enrich policymaking with innovative approaches using science and technology for a sustainable, secure and inclusive…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 17 | 204 contacts → | ||||
Exact match “INSS (The Institute for National Security Studies) is an independent academic institute that studies key issues relating to Israel's national security and Middle East affairs.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 18 | 191 contacts → | ||||
Exact match “The European Council on Foreign Relations (ECFR) is an award-winning international think-tank that aims to conduct cutting-edge independent research on European foreign and…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 19 | 178 contacts → | ||||
Exact match “Ideas.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 20 | 174 contacts → | ||||
Exact match “The Center for a New American Security (CNAS) is an independent, bipartisan, nonprofit organization that develops strong, pragmatic, and principled national security and defense…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 21 | 170 contacts → | ||||
Exact match “Capita is an independent think tank and community.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 22 | 165 contacts → | ||||
Exact match “CEPR is an independent, non‐partisan, pan‐European non‐profit organization.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 23 | 163 contacts → | ||||
Exact match “The Committee for Economic Development of Australia is an independent, membership-based think tank investigating the key economic and social issues shaping public policy.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 24 | 155 contacts → | ||||
Exact match “The Geostrata is an independent Indian think tank standing for a distinctly Indian take on world affairs.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 25 | 150 contacts → | ||||
Exact match “The Center for European Policy Analysis (CEPA) is a nonprofit, nonpartisan, public policy institution headquartered in Washington, DC with hubs in London and Brussels, focused on…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “think tanks”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 1,846 think tanks worldwide
See the full list, filter by size, metro and specialty, and access 8,443 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Think tanks worldwide at a glance
As of Sep 22, 2026Companies by employee count
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 think tanks are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “think tanks” 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 8,443 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 September 22, 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.
Think tanks by location
11 lists · largest firstEvery Think tanks list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Think tanks based in the United States271
- Think tanks based in India145
- Think tanks based in the United Kingdom102
- Think tanks based in France88
- Think tanks based in Germany56
- Think tanks based in Italy47
- Think tanks based in the Netherlands37
- Think tanks based in Australia34
- Think tanks based in Belgium32
- Think tanks based in Brazil29
- Think tanks based in Canada28
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 “think tanks”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many think tanks are there worldwide?
RevenueBase identified 1,846 company matches for think tanks worldwide as of September 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?
RAND tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most think tanks?
The United States leads with 271 companies, followed by India (145) and the United Kingdom (102). Every think tanks list by country and city is linked on this page.
Which city has the most think tanks?
Washington leads with 77 company records, followed by London (63) and New Delhi (60).
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 8,443 professional contacts with verified work emails tracked across these 1,846 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 September 22, 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.
More company lists
Company intelligence · public preview
Top 25 think tanks worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,846 matching company records for think tanks worldwide, with 35,763 tracked contacts and 8,443 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 think tanks worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | RANDrand.org HQ: Santa Monica, CA, United StatesReported employees: 1,001-5,000 | Santa Monica, CA, United States | 1,001-5,000 | Exact match | 2,660 contacts → |
“RAND is a nonprofit, nonpartisan research organization that provides leaders with the information they need to make evidence-based decisions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 937 contacts → |
“The Center for Strategic and International Studies (CSIS) is a bipartisan, nonprofit policy research organization dedicated to advancing practical ideas to address the world’s…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Atlantic Councilatlanticcouncil.org HQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 888 contacts → |
“The Atlantic Council promotes constructive leadership and engagement in international affairs based on the central role of the Atlantic Community in meeting global challenges.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Chatham Housechathamhouse.org HQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 867 contacts → |
“The mission of Chatham House is to be a world-leading source of independent analysis, informed debate and influential ideas on how to build a prosperous and secure world for all.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | The Heritage Foundationheritage.org HQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 695 contacts → |
“Founded in 1973, The Heritage Foundation is a research and educational institution-a think tank-whose mission is to formulate and promote conservative public policies based on the…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Royal United Services Instituterusi.org HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 313 contacts → |
“The Royal United Services Institute (RUSI) is a unique institution, founded in 1831 by the Duke of Wellington, RUSI embodies nearly two centuries of forward thinking, free…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Carnegie Endowment For International Peacecarnegieendowment.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 311 contacts → |
“The Carnegie Endowment for International Peace generates strategic ideas and independent analysis, supports diplomacy, and trains the next generation of scholar-practitioners to…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Observer Research Foundationorfonline.org HQ: New Delhi, IndiaReported employees: 51-200 | New Delhi, India | 51-200 | Exact match | 285 contacts → |
“Set up in 1990, ORF seeks to lead and aid policy thinking towards building a strong and prosperous India in a fair and equitable world.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | The Stimson Centerstimson.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 243 contacts → |
“The Stimson Center promotes international security and shared prosperity through applied research and independent analysis, global engagement, and policy innovation.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | PEW Research Centerpewresearch.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 237 contacts → |
“Pew Research Center is a nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping the world.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Bangkok, ThailandReported employees: 201-500 | Bangkok, Thailand | 201-500 | Exact match | 227 contacts → |
“Thailand’s most respected economic think-tank with 30 years of policy research experiences.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Hudson Institutehudson.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 222 contacts → |
“Hudson Institute is a research-focused public policy think tank headquartered in Washington, DC, dedicated to promoting American leadership for a secure, free, and prosperous…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Rand Europerandeurope.org HQ: Cambridge, United KingdomReported employees: 51-200 | Cambridge, United Kingdom | 51-200 | Exact match | 222 contacts → |
“RAND Europe is a not-for-profit research institute whose mission is to help improve policy and decision making through research and analysis.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: Brussels, BelgiumReported employees: 51-200 | Brussels, Belgium | 51-200 | Exact match | 221 contacts → |
“Founded in Brussels in 1983, the Centre for European Policy Studies (CEPS) is among the most experienced and authoritative think tanks operating in the European Union today.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Vidhi Centre For Legal Policyvidhilegalpolicy.in HQ: New Delhi, IndiaReported employees: 51-200 | New Delhi, India | 51-200 | Exact match | 215 contacts → |
“The Vidhi Centre for Legal Policy is an independent think-tank doing legal research to make better laws and improve governance for the public good.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 207 contacts → |
“CSTEP is one of India’s leading think tanks, with a mission to enrich policymaking with innovative approaches using science and technology for a sustainable, secure and inclusive…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Inss Israelinss.org.il HQ: Tel Aviv, IsraelReported employees: Not recorded | Tel Aviv, Israel | Not recorded | Exact match | 204 contacts → |
“INSS (The Institute for National Security Studies) is an independent academic institute that studies key issues relating to Israel's national security and Middle East affairs.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: Berlin, United KingdomReported employees: 51-200 | Berlin, United Kingdom | 51-200 | Exact match | 191 contacts → |
“The European Council on Foreign Relations (ECFR) is an award-winning international think-tank that aims to conduct cutting-edge independent research on European foreign and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Bipartisan Policy Centerbipartisanpolicy.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 178 contacts → |
“Ideas.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Washington, DC, United StatesReported employees: Not recorded | Washington, DC, United States | Not recorded | Exact match | 174 contacts → |
“The Center for a New American Security (CNAS) is an independent, bipartisan, nonprofit organization that develops strong, pragmatic, and principled national security and defense…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Capitacapita.org HQ: Greenville, SC, United StatesReported employees: Not recorded | Greenville, SC, United States | Not recorded | Exact match | 170 contacts → |
“Capita is an independent think tank and community.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | CEPRcepr.org HQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 165 contacts → |
“CEPR is an independent, non‐partisan, pan‐European non‐profit organization.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | CEDAceda.com.au HQ: Melbourne, AustraliaReported employees: Not recorded | Melbourne, Australia | Not recorded | Exact match | 163 contacts → |
“The Committee for Economic Development of Australia is an independent, membership-based think tank investigating the key economic and social issues shaping public policy.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | The Geostratathegeostrata.com HQ: Delhi, IndiaReported employees: 51-200 | Delhi, India | 51-200 | Exact match | 155 contacts → |
“The Geostrata is an independent Indian think tank standing for a distinctly Indian take on world affairs.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 150 contacts → |
“The Center for European Policy Analysis (CEPA) is a nonprofit, nonpartisan, public policy institution headquartered in Washington, DC with hubs in London and Brussels, focused on…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,846 company matches
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Think tanks: dataset insights
September 22, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,844 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,846 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 22, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Think tanks by location
11 lists · largest firstEvery Think tanks list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Think tanks based in the United States271
- Think tanks based in India145
- Think tanks based in the United Kingdom102
- Think tanks based in France88
- Think tanks based in Germany56
- Think tanks based in Italy47
- Think tanks based in the Netherlands37
- Think tanks based in Australia34
- Think tanks based in Belgium32
- Think tanks based in Brazil29
- Think tanks based in Canada28
Questions about this company list
What does Exact match mean for think tanks?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many think tanks did RevenueBase find worldwide?
The saved snapshot records 1,846 matching company records, 35,763 tracked contacts and 8,443 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 22, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 think tanks worldwide. Snapshot: September 22, 2026. https://revenuebase.ai/companies/browse/think-tanks.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 think tanks worldwide
RevenueBase records 1,846 matching company records for think tanks worldwide, with 35,763 tracked contacts and 8,443 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 think tanks worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | RANDrand.org HQ: Santa Monica, CA, United StatesReported employees: 1,001-5,000 | Santa Monica, CA, United States | 1,001-5,000 | Exact match | 2,660 contacts → |
“RAND is a nonprofit, nonpartisan research organization that provides leaders with the information they need to make evidence-based decisions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 937 contacts → |
“The Center for Strategic and International Studies (CSIS) is a bipartisan, nonprofit policy research organization dedicated to advancing practical ideas to address the world’s…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Atlantic Councilatlanticcouncil.org HQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 888 contacts → |
“The Atlantic Council promotes constructive leadership and engagement in international affairs based on the central role of the Atlantic Community in meeting global challenges.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Chatham Housechathamhouse.org HQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 867 contacts → |
“The mission of Chatham House is to be a world-leading source of independent analysis, informed debate and influential ideas on how to build a prosperous and secure world for all.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | The Heritage Foundationheritage.org HQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 695 contacts → |
“Founded in 1973, The Heritage Foundation is a research and educational institution-a think tank-whose mission is to formulate and promote conservative public policies based on the…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Royal United Services Instituterusi.org HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 313 contacts → |
“The Royal United Services Institute (RUSI) is a unique institution, founded in 1831 by the Duke of Wellington, RUSI embodies nearly two centuries of forward thinking, free…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Carnegie Endowment For International Peacecarnegieendowment.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 311 contacts → |
“The Carnegie Endowment for International Peace generates strategic ideas and independent analysis, supports diplomacy, and trains the next generation of scholar-practitioners to…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Observer Research Foundationorfonline.org HQ: New Delhi, IndiaReported employees: 51-200 | New Delhi, India | 51-200 | Exact match | 285 contacts → |
“Set up in 1990, ORF seeks to lead and aid policy thinking towards building a strong and prosperous India in a fair and equitable world.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | The Stimson Centerstimson.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 243 contacts → |
“The Stimson Center promotes international security and shared prosperity through applied research and independent analysis, global engagement, and policy innovation.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | PEW Research Centerpewresearch.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 237 contacts → |
“Pew Research Center is a nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping the world.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Bangkok, ThailandReported employees: 201-500 | Bangkok, Thailand | 201-500 | Exact match | 227 contacts → |
“Thailand’s most respected economic think-tank with 30 years of policy research experiences.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Hudson Institutehudson.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 222 contacts → |
“Hudson Institute is a research-focused public policy think tank headquartered in Washington, DC, dedicated to promoting American leadership for a secure, free, and prosperous…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Rand Europerandeurope.org HQ: Cambridge, United KingdomReported employees: 51-200 | Cambridge, United Kingdom | 51-200 | Exact match | 222 contacts → |
“RAND Europe is a not-for-profit research institute whose mission is to help improve policy and decision making through research and analysis.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: Brussels, BelgiumReported employees: 51-200 | Brussels, Belgium | 51-200 | Exact match | 221 contacts → |
“Founded in Brussels in 1983, the Centre for European Policy Studies (CEPS) is among the most experienced and authoritative think tanks operating in the European Union today.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Vidhi Centre For Legal Policyvidhilegalpolicy.in HQ: New Delhi, IndiaReported employees: 51-200 | New Delhi, India | 51-200 | Exact match | 215 contacts → |
“The Vidhi Centre for Legal Policy is an independent think-tank doing legal research to make better laws and improve governance for the public good.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 207 contacts → |
“CSTEP is one of India’s leading think tanks, with a mission to enrich policymaking with innovative approaches using science and technology for a sustainable, secure and inclusive…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Inss Israelinss.org.il HQ: Tel Aviv, IsraelReported employees: Not recorded | Tel Aviv, Israel | Not recorded | Exact match | 204 contacts → |
“INSS (The Institute for National Security Studies) is an independent academic institute that studies key issues relating to Israel's national security and Middle East affairs.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: Berlin, United KingdomReported employees: 51-200 | Berlin, United Kingdom | 51-200 | Exact match | 191 contacts → |
“The European Council on Foreign Relations (ECFR) is an award-winning international think-tank that aims to conduct cutting-edge independent research on European foreign and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Bipartisan Policy Centerbipartisanpolicy.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 178 contacts → |
“Ideas.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Washington, DC, United StatesReported employees: Not recorded | Washington, DC, United States | Not recorded | Exact match | 174 contacts → |
“The Center for a New American Security (CNAS) is an independent, bipartisan, nonprofit organization that develops strong, pragmatic, and principled national security and defense…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Capitacapita.org HQ: Greenville, SC, United StatesReported employees: Not recorded | Greenville, SC, United States | Not recorded | Exact match | 170 contacts → |
“Capita is an independent think tank and community.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | CEPRcepr.org HQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 165 contacts → |
“CEPR is an independent, non‐partisan, pan‐European non‐profit organization.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | CEDAceda.com.au HQ: Melbourne, AustraliaReported employees: Not recorded | Melbourne, Australia | Not recorded | Exact match | 163 contacts → |
“The Committee for Economic Development of Australia is an independent, membership-based think tank investigating the key economic and social issues shaping public policy.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | The Geostratathegeostrata.com HQ: Delhi, IndiaReported employees: 51-200 | Delhi, India | 51-200 | Exact match | 155 contacts → |
“The Geostrata is an independent Indian think tank standing for a distinctly Indian take on world affairs.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 150 contacts → |
“The Center for European Policy Analysis (CEPA) is a nonprofit, nonpartisan, public policy institution headquartered in Washington, DC with hubs in London and Brussels, focused on…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Think tanks: dataset insights
September 22, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,844 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,846 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 22, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Think tanks by location
11 lists · largest firstEvery Think tanks list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Think tanks based in the United States271
- Think tanks based in India145
- Think tanks based in the United Kingdom102
- Think tanks based in France88
- Think tanks based in Germany56
- Think tanks based in Italy47
- Think tanks based in the Netherlands37
- Think tanks based in Australia34
- Think tanks based in Belgium32
- Think tanks based in Brazil29
- Think tanks based in Canada28
Questions about this company list
What does Exact match mean for think tanks?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many think tanks did RevenueBase find worldwide?
The saved snapshot records 1,846 matching company records, 35,763 tracked contacts and 8,443 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 22, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
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Cite this list
RevenueBase Data Team. Top 25 think tanks worldwide. Snapshot: September 22, 2026. https://revenuebase.ai/companies/browse/think-tanks.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗