- American Science and Surplus - A retail outfit carrying everything from toys and novelties to motors, tools and science kits.
- Collectology.com - Offers specimens and gear for biological, paleontological, and geological collecting. Also offers appraisal services.
- Crystal River Gems - Large selection of jewelry, fossils, crystals, and object d'art.
- Discovery Scope - Scopes for magnifying small objects. Site includes accessories and t-shirts for sale, also.
- Edmund Scientific - Offers a wide range of products for science enthusiasts.
- Efston Science - Science and astronomy superstore, with a wide variety of equipment and supplies for sale.
- Electro-Chem-Technic - Makes and sells a novel small fuel cell, and offers hydrogen sources, accessories and materials for self-assembling. Based in the UK.
- Enerdyne - Optics, toys, garden products, Petoskey stones from Michigan.
- Exploratorium Museum Store - Science toys and games, puzzles, gifts, books, classroom resources, charts and posters, videos, and software.
- Explore - Includes dinosaurs, flying toys, gyroscopes, astronomy, boats, globes, and solar kits.
- Gem Trees by Patrick - Replicas of bonsai trees made with semi-precious stones.
- Geographics - Purveyors of decadence in academia, T-shirts, bumper stickers, and other paleontology and science-themed materials.
- Microscope Pen - Offers a 100x pocket microscope.
- National Geographic Store - Features maps, videos, DVDs, books, magazines, globes, and telescopes.
- National Wildlife Federation - The online shopping site for the NWF featuring nature-themed products.
- Nature's Wildlife Window - Offers nature-themed sculpture, home accessories, and clothing.
- Omni Optical - Optical science, prisms, illusions, fiber optics, microscope, telescopes, optical science activity kits, magnifiers and binoculars are a few of the items offered.
- Polarization - Everything polarized, from variable sunglasses to science kits.
- Quality Items of Montana - Specializing in Oregon Scientific brand fitness and weather products.
- Science Fair Projects Online - Purchase and download science fair projects with step by step blueprints.
- Science Line - Offers a large variety of science items.
- Science Shirts - T-shirts and other apparel with a variety of science themes. Also offers mugs, mouse pads, and other accessories.
- Store for Knowledge - A variety of kits, models and toys related to several sciences.
- Tech Museum Online Store - Science toys, gadgets, gizmos, models, and reconstructions.
- Technika Gadgets and Gifts - Source for scientific equipment, gadgets and gifts.
- The Academy Store - Gifts for all ages from the California Academy of Sciences in San Francisco.
- The Nature Store - Books, videos and gifts with an emphasis on birds and butterflies.
- The Science Company - Sells a selection of weather instruments, microscopes, telescopes, GPS and related accessories.
- Unlimited Exotica - Rocks, minerals and fossils, cacti, succulents and carniverous plants.
- Yellowstone Gifts - Assorted items, including books and apparel, from Yellowstone National Park.