The National Association of Biology Teachers promotes biology and life science education. Its members have made a statement in favor of the teaching of evolution theory.

The International Society for Complexity, Information and Design is a nonprofit that proposes to “retrain the scientific imagination to see purpose in nature.”

Answers in Genesis is a Christian group that promotes creationism. It runs the Creation Museum in Petersburg, Ky.

Reasons to Believe is a Christian ministry that supports people who want to find scientific proof of biblical events.

The Alpha Omega Institute promotes the teaching of creationism.

Access Research Network is a nonprofit that provides information on science, technology and social issues and includes descriptions and discussions of intelligent design.

The Institute for Creation Research is a Christian-based creation ministry.

The Intelligent Design Network is a nonprofit organization that seeks to promote objectivity in origins education in public schools.

The Discovery Institute describes its mission as “to make a positive vision of the future practical.” It is one of the main proponents of intelligent-design theory in education.