Special Guests 
- Academy of Sciences for the Developing World (TWAS)
- Confederaçao Nacional da Industria Brasil (CNI)
- American Association for the Advancement of Science (AAAS)
- American Chemical Society (ACS)
- Asociación INTERCIENCIA (Interscience Association)
- Centro Nacional de Metrología de México (CENAM)
- Central American Bank for Economic Integration (CABEI)
- Canadian International Development Agency (CIDA)
- Caribbean Development Bank (CDB)
- Caribbean Scientific Union
- CITGO
- Centro de Investigación en Alimentación y Desarrollo (CIAD)
- CHEVRON
- Inter-American Metrology System (SIM)
- Fogarty International Center of the National Institutes of Health (NIH), United States
- Fulbright Program, United States
- George Washington University (GWU), United States
- Georgia Centers of Innovation Program, United States
- Georgia Institute of Technology, United States
- Hewlett-Packard Company
- Instituto Nacional de Metrologia, Nomalizacao e Qualidade Industrial de Brasil INMETRO
- Inter-American Network of Science Academies (IANAS)
- Inter-American/Ibero-American Network on Science and Technology Indicators (RICYT)
- Inter-American University Organization (OUI)
- Instituto Nacional de Pesquisas Espaciais (INPE), Brazil
- International Development Research Center (IDRC), Canada
- International Council for Science (ICSU)
- International Organization of Legal Metrology (OIML)
- Knowledge Partnership Korea Fund for Technology and Innovation (KPK)
- KRISS
- Latin American Cooperation of Advanced Networks (CLARA)
- Microsoft Corporation
- Ministry of Communication, Science and Technology of Lesotho
- Museum of Life (Museu da vida), Brazil
- Museum of Astronomy and Related Sciences , Brazil
- National Academy of Engineering, United States
- National Academy of Sciences, United States
- National Institute of Standards and Technology (NIST), United States
- National Instruments, United States
- National Science Foundation (NSF), United States
- PEMEX
- PETROBRAS
- Physical-Technical Federal Institution (Physikalish-Technische Bundesanstalt -PTB), Germany
- Regional Center for Space Science and Technology Education for Latin America and the Caribbean (CRECTEALC)
- Secretaría de Integración Económica Centroamericana (SIECA)
- Third World Organization for Women in Science (TWOWS)
- UNESCO Regional Chair on Women, Science and Technology in Latin America, Latin American Faculty of Social
- ciences (FLACSO), head office in Argentina
- United States Agency for International Development (USAID)
- World Federation of Engineering Organizations (WFEO)
- World Federation of Science Journalists (WFSJ)
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