- Atheist Community of Tulsa (tulsa)
- Chabot Space and Science Center (oakland)
- Detroit Observatory (ann-arbor)
- Free Telescope Viewing (oakland)
- Lowell Observatory (flagstaffaz)
- Morehead Planetarium and Science Center (raleigh)
- Northwest Suburban Astronomers (arlington-heights)
- University Lowbrow Astronomers (ann-arbor)