- Beardsley Zoo (Bridgeport)
- Bruce Museum Science Collection -- geology and natural history collections, with an emphasis on local species
- The Children's Museum (formerly the Science Center of Connecticut) (West Hartford)
- Children's Museum of Southeastern Connecticut (Niantic)
- Connecticut College Arboretum (New London)
- Connecticut Resources Recovery Association Trash Museum (Hartford) and Garbage Museum (Stratford)
- Connecticut River Museum (Essex)
- Connecticut State Museum of Natural History (Storrs--Univ. of CT)
- Denison Pequotsepos Nature Center (Mystic)
- Dinosaur State Park (Rocky Hill)
- Discovery Museum (Bridgeport)
- Earthplace (Westport)
- Ecology and Evolutionary Biology Plant Growth Facilities (Storrs--Univ. of CT)
- Eli Whitney Museum & Workshop -- includes a profile of A.C. Gilbert, inventor of the Erector Set and producer of a wide range of science toys for children (New Haven)
- Goodwin Conservation Center (Hampton)
- Kellogg Environmental Center (Derby)
- Meigs Point Nature Center at Hammonasset Beach State Park (Madison)
- Maritime Aquarium (Norwalk)
- Mystic Aquarium (Mystic)
- Sessions Woods Wildlife Management Area (Burlington)
- Stamford Museum & Nature Center (Stamford)
- Stone Museum - natural & cultural history of People's Forest State Park (Pleasant Valley)
- Talcott Mountain Science Museum (Avon)
- Yale Peabody Museum of Natural History (New Haven)
- Connecticut Audubon Society -- use the Centers menu link for a list of CAS Centers
- Connecticut Forest & Park Association
- Connecticut Science & Nature Centers (from Visit New England)
- CTTrips - geology and natural history trips and information from around CT from the publisher of Great Day Trips to Discover the Geology of Connecticut (ECSU copy)
- Many Members of the Connecticut Science Center Collaborative have visitor centers
- Science Centers in CT (from the Institute for Sustainable Energy)
