| Alexander's Observatories: Provides fully installed rolling roof observatories, plus Shockproof easy-Level Pedestals (permanent piers) for a variety of telescopes. Located in the UK. |
| Ash Manufacturing Company: Produces the Ash-Dome line of observatory domes and tracking instrument shelters for advanced amateur observatories, professional observatories and government agencies. |
| Astro Domes: Telescope observatory domes for the home and serious astronomer. Site features specifications, photos and plan views of each product. |
| Astro Haven: Fiberglass clamshell domes for observatory, planetarium, radar-tracking housing, portable bandstand. |
| Clear Skys, Inc.: Produces rotating observatory dome systems constructed of fiberglass, telescope piers, helical fine focus adapters, and various other products for amateurs. |
| Fortress Systems: Designs roll-off roof observatories which are built and installed on-site. |
| Galactica 360: Fiberglass, non-rotating observatory domes and freestanding observatories for amateur astronomers. Domes feature a counterweighted clamshell design. Also manufactures a unique portable bandstand. |
| Meridian Controls Corporation: Specializes in observatory dome automation and turn-key observatories. Slaving of the dome to telescope motion is accomplished using software from Software Bisque. |
| Observa-DOME Laboratories, Inc.: Professional observatory domes, missle tracking and LIDAR shelters for advanced amateur, professional and government applications. |
| Pier-Tech, Inc.: Unique, adjustable height telescope piers that preserve polar alignment during height adjustment. Company also manufactures the Tele-Station roll-off roof observatory. |
| Sirius Observatories: Australian manufacturer of astronomical domed observatories, and the ATS Autodome controller system featuring a serial interface for control by TheSky software. |
| SkyShed: Canadian manufacturer of roll-off observatories, POD fiberglass clamshell dome observatories, and telescope piers. Also sells observatory plans and kits. |
| Stargazer Planetariums: Custom-built inflatable domes for mobile planetarium shows, mobile theatres, promotional shows and other uses. |
| Technical Innovations, Inc.: Fiberglass Home-Dome, Pro-Dome and Robo-Dome observatory domes, Dome Works and Digital Dome Works control hardware, and Robo-Focus remote focusing hardware with software. Free publications on how to design and set up a remote controlled observatory. |
| U.K. Observatories: Kit builder and installer of roll-off roof observatories in the U.K. and Europe. Authorized builder and installer of Skyshed observatories and piers within Europe and the United Kingdom. |
| Vycon Products, Ltd.: Offers the fiberglass Voyager Observatory, with an approximate 8 foot inside diameter, suitable for instruments up to 16 inches in aperture. |