- (AU) Association of Professional Engineers, Scientists and Managers
 - Nonprofit organisation representing professional employees. - (AU) Federation of Australian Scientific and Technological Societies
- Represents workers in Australian science.
- American Association for Aerosol Research
- Professional society for engineers and scientists involved in basic and applied aerosol research.
- American Association for Laboratory Accreditation (A2LA)
- Nonprofit professional membership society for laboratory accreditation and training in laboratory practices.
- American Association for the Advancement of Science (AAAS) (16)
- Find the American Association for the Advancement of Science (AAAS) sites for research grants, profession services, and science educational resources along with their weekly journal of research, Science Magazine.
- Association of Muslim Scientists and Engineers
- Promotes the development of science and technology education, and values in science and technology. Includes profiles of notable figures.
- Association of Thai Professionals in America and Canada (ATPAC)
- Nonprofit organisation promoting scientific knowledge, technology, and education in Thailand.
- California Space Authority
- Nonprofit corporation supporting the retention and expansion of California space activities through programme development, grant administration, and policymaker education.
- Community of Science
- A global registry of scientists designed to provide accurate, thorough, timely, and easy-to-access information about who is working on what subject, and where.
- Explorers Club (5)
- Korean-American Scientists and Engineers Association
- Society for Imaging Science and Technology
- An international nonprofit society whose mission is to advance the understanding and application of imaging science and technology.
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