These companies operate in the Think Tanks industry globally. They are mostly mid-sized to large organizations, with the largest being Chief, a private network for executive women, and Pavilion, a private community for B2B tech go-to-market leaders. Other notable organizations include Fabrica, a research center in Italy, and the Council on Foreign Relations, an independent nonpartisan organization providing analysis on international issues.
A significant number of these Think Tanks are headquartered in New York, with four of the largest companies based there. Washington, D.C. also hosts several prominent organizations such as the Center for Strategic and International Studies (CSIS) and the German Marshall Fund of the United States. The founding dates range from the early 20th century to recent years, indicating a mix of established institutions and newer communities.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 7,729 | ||||
| 2 |
Pavilionjoinpavilion.com
Private community for B2B tech go-to-market leaders offering networking, learning, events, courses, and a curated knowledge hub. |
5,431 | |||
| 3 |
Fabricafabrica.it
A research center in Italy founded by Luciano Benetton and Oliviero Toscani, offering artist-in-residence programs for creative talents under 25 |
3,951 | |||
| 4 |
RevGeniusrevgenius.com
A community of revenue professionals collaborating on the future of B2B GTM through learning, sharing, and growing together |
3,740 | |||
| 5 |
Council on Foreign Relationscfr.org
An independent nonpartisan organization providing analysis on international issues through a think tank, publication of Foreign Affairs magazine, and online resources |
2,183 | |||
| 6 |
Center for Strategic and International Studies (CSIS)csis.org
A bipartisan, nonprofit policy research organization in Washington, DC, dedicated to providing strategic insights and policy solutions for a better world |
1,755 | |||
| 7 |
othergoogle.com.tr
Inspirational brand motivating individuals to persevere through life's challenges on the path to success and growth |
1,563 | |||
| 8 |
Friedrich-Ebert-Stiftungfes.de
A non-profit organization promoting democracy, education, international cooperation, and social responsibility through political education, consulting, scholarships, and publications |
1,327 | |||
| 9 |
PreSales Collectivepresalescollective.com
The company aims to elevate the role of PreSales globally by providing resources, knowledge, networking, and mentorship for career development in PreSales |
1,202 | |||
| 10 |
Chatham Housechathamhouse.org
A leading source of independent analysis and influential ideas on international affairs, hosting events and conferences, publishing journals and magazines |
1,163 | |||
| 11 |
Girişimci Kafasıgirisimcikafasi.com
A resource for individuals looking to enhance their careers and achieve success by staying updated on economics, job opportunities, motivation, and technology |
1,036 | |||
| 12 |
German Marshall Fund of the United Statesgmfus.org
Nonpartisan organization promoting transatlantic partnership to address 21st-century challenges and opportunities between Europe and North America. |
975 | |||
| 13 |
American Enterprise Instituteaei.org
A public policy think tank dedicated to defending human dignity, expanding human potential, and promoting freedom and opportunity worldwide |
967 | |||
| 14 |
Sistema Findesfindes.com.br
A group of seven entities working together to promote the development of the industry in Espírito Santo through various services and initiatives |
949 | |||
| 15 | 918 | ||||
| 16 |
Institute for Applied Economic Research (Ipea)ipea.gov.br
A federal public foundation providing technical support for government actions, formulating public policies and Brazilian development programs through publications and seminars |
916 | |||
| 17 |
The Conference Boardconference-board.org
Provides trusted, non-partisan economic and business insights through research and analysis for members and the public. |
911 | |||
| 18 |
The Brookings Institutionbrookings.edu
A renowned think tank conducting independent research, offering innovative policy solutions, and consistently ranked as the most influential and trusted globally |
907 | |||
| 19 |
The Heritage Foundationheritage.org
A conservative think tank founded in 1973, focused on promoting free enterprise, limited government, individual freedom, traditional values, and a strong national defense |
805 | |||
| 20 | 
AZIENDA OSPEDALIERA POLICLINICO CONSORZIALE DI BARI
A healthcare organization in Bari, Italy that operates a hospital and research center specializing in advanced medical treatments and technologies |
799 | |||
| 21 |
Milken Institutemilkeninstitute.org
A nonprofit think tank promoting diversity and inclusion, providing resources, training, and opportunities for personal and professional growth in various office locations |
775 | |||
| 22 |
ABNT - Associação Brasileira de Normas Técnicasabnt.org.br
Established in 1940, this organization is responsible for technical standardization in Brazil, providing the necessary foundation for the country's technological development It is also involved in international standardization bodies |
765 | |||
| 23 |
ENGIE Research & Innovationinnovation.engie.com
An innovation-focused company seeking collaborations with startups in Biogas, Energy communities, Energy efficiency, Hydrogen, and Energy storage projects |
686 | |||
| 24 |
Centre de recherche Azrieli du CHU Sainte-Justinerecherche.chusj.org
A research center focused on improving maternal and child health through innovative and multidisciplinary research, with a team of over 1200 members |
685 | |||
| 25 |
Hoover Institution, Stanford Universityhoover.org
Researching economics, politics, and international affairs to advance ideas promoting economic opportunity, prosperity, and securing peace for America and humanity. |
652 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 |
KAPSARCkapsarc.org
Advisory think tank providing multidisciplinary research and strategic insights to support sustainable energy policies and sector development in Saudi Arabia. |
636 | |||
| 27 |
Heinrich-Böll-Stiftungboell.de
The company is dedicated to fostering democracy, human rights, environmental protection, gender equality, conflict prevention, and individual freedoms through global initiatives and partnerships |
632 | |||
| 28 |
German Energy Agency (dena)dena.de
Center of excellence for energy transition and climate protection, working with stakeholders to achieve climate neutrality goals through research, solutions, and partnerships |
627 | |||
| 29 |
FGV DGPE
The Diretoria de Desenvolvimento da Gestão Pública e Políticas Educacionais focuses on improving public management and education policies to positively impact social indicators in Brazil |
593 | |||
| 30 |
ODI Globalodi.org
Global think tank inspiring action on injustice and inequality through research, convening, and influencing to generate impactful ideas for people and planet |
561 | |||
| 31 |
The Postthepost.co
A private membership network founded by elite athletes, providing access to a network, exclusive experiences, coaching, and a clubhouse for leaders in sport |
530 | |||
| 32 |
Hamptonjoinhampton.com
Provides a highly vetted membership community for entrepreneurs, founders, and CEOs to connect, share knowledge, and grow their businesses. |
529 | |||
| 33 |
The Old Girls Clubjointheogc.com
Connects ambitious women and non-binary individuals for tactical support, sharing insights, guidance, and resources on careers, compensation, family planning, and leadership strategies. |
526 | |||
| 34 |
International Institute for Sustainable Developmentiisd.org
An award-winning think tank promoting sustainable solutions worldwide, focusing on human development, environmental sustainability, and building broad-based coalitions |
520 | |||
| 35 |
Mitsubishi Research Institutemri.co.jp
A prestigious think tank and consulting firm founded by Mitsubishi group, providing comprehensive solutions and IT services for sustainable business development |
513 | |||
| 36 |
WRI Indiamegaplusredirection.tedata.net
Independent research organization focusing on improving lives, protecting nature, and addressing climate change through data-driven solutions in food, land, water, energy, and cities. |
489 | |||
| 37 |
Fundação Ezequiel Diasgov.br
Specializes in pharmaceutical products like antivenoms and medicines for healthcare policies, supplying government programs and conducting public health testing and research |
483 | |||
| 38 |
IRCCS INRCA - Istituto Nazionale Ricovero e Cura Anzianiinrca.it
Specialized hospital and research center in gerontology and geriatrics, recognized as a Scientific Research Institute, focused on elderly issues in Italy |
478 | |||
| 39 |
Aditya Birla Management Corporation Pvt Ltdadityabirla.com
A multinational conglomerate headquartered in India, providing strategic direction, functional leadership, and specialist services to its group companies worldwide |
463 | |||
| 40 |
PT. Nindya Karyanindyakarya.co.id
Specializing in construction, EPC, and realty services, we deliver innovative, competitive, and world-class projects that optimize functionality and minimize costs |
453 | |||
| 41 |
CREWcrewexec.com
A transformative membership network offering leadership development through self-awareness, networking, learning, coaching, events, and connections with top commercial leaders |
452 | |||
| 42 |
Onbekenddomeinenbank.nl
The company provides expert services in various fields, specializing in customer satisfaction through high-quality solutions and innovative approaches |
436 | |||
| 43 |
CERP | Evidence Matterscerp.org.pk
An impact-driven organization enhancing decision-making with research, analytics, capacity building, data collection, and advisory services for public and private sectors |
423 | |||
| 44 |
Council on Energy, Environment and Water (CEEW)ceew.in
A leading not-for-profit policy research institution addressing global challenges through data, analysis, outreach, and partnerships with a focus on energy, environment, and water |
422 | |||
| 45 |
IZSLER - Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagnaizsler.it
A Public Health Authority provides technical-scientific support for health, animal welfare, food safety, and environmental integrity through analysis, risk assessment, and research activities |
413 | |||
| 46 |
Royal United Services Instituterusi.org
Unique institution providing forward-thinking discussion, and careful reflection on international affairs, defense, and security matters with a global reach and an outstanding reputation for quality and objectivity. |
411 | |||
| 47 |
Bertelsmann Stiftungbertelsmann-stiftung.de
A forward-thinking operating foundation focusing on identifying social challenges, developing solutions, and offering policy consultancy on EU and neighboring regions |
398 | |||
| 48 |
Osservatori Digital Innovationosservatori.net
A leading source of information and knowledge on Digital Innovation enabled by ICT, based in Italy |
387 | |||
| 49 |
Carnegie Endowment for International Peacecarnegieendowment.org
A global think tank dedicated to advancing international cooperation and engagement, with offices in key world capitals and a nonpartisan focus on practical results |
386 | |||
| 50 |
Sebrae/MSsebrae.com.br
A non-profit organization in Mato Grosso do Sul promoting competitiveness, sustainable development, entrepreneurship, and formalization of micro and small businesses through various programs and partnerships |
385 | |||
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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 14, 2026.
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