- Astro Stuff
- Astrotec
- Company Seven Astro Optics
- Company Seven Astro-Optics Div
- Compleat Naturalist
- Digitec Optical Inc
- Hands On Optics
- Hardin Optical Co
- High Point Scientific
- Hobby House Las Vegas
- Hoy's Flower & Plant Shoppe
- Hoy's Greenhouse
- Hoy's Radio Svc
- Island Astronomy LLC
- Lymax's Earth Sky & Astronomy
- Minnesota Astronomical
- Natural Selections
- New Mexico Astronomical
- Parallax Instruments
- Rayleigh Optical Corp
- Scope City
- Sky Plus
- Waite Research
