AAAS makes provision for affiliate societies. As of 2003, the AAAS affiliate population included 271 societies and academies of science, serving more than 10 million members.

This set of affiliates makes AAAS the world's largest federation of scientific and engineering societies.

The ASC is an affiliate of AAAS.

• coordinating systems research among member organizations;
  
• organizing, supporting, and sponsoring research and development, international meetings, and workshops;
  
• developing and promoting international publications in the area of systems research and applications;
  
• developing and promoting programs and resource materials development in systems education;
  
• defining and promoting standards of competence in systems research and systems education;
  
• developing information on the knowledge-base in the cybernetic and systems sciences; and
  
• coordinating programs among member organizations and providing assistance to them.

The ASC is a member of IFSR.

"The ISSS is a broadly based professional society of scientists, philosophers, educators, futurists, humanists, business and policy practicioners, artists, writers, and many other professionals from diverse endeavors, who are drawn together by a common interest: understanding and interacting systemically with reality." (- ISSS Website )