MURNAGHAN Instruments - Manufacturer of low-cost Coulter Odyssey series of Dobsonian telescopes, as well as CCD camera and 35 mm camera accessories for astronomy, Johnson and Kron-Cousins UBVRI photometric filters, RGB tricolor imaging, subtractive, infrared and ultraviolet imaging filters, infrared block filters, flip mirror finders, beam splitters, filter wheels.

Meade Instruments Corporation - Products include astronomical telescopes and accessories, eyepieces, CCD imaging equipment, astronomical software, spotting scopes, binoculars, and microscopes.

Steve's Eyepiece Cases - Handcrafted hardwood eyepiece cases in two sizes and several finishes. Home of the AstroCady -- more than an eyepiece case, it's a Caddy for your Astro stuff!

Company Seven - A resource for the international professional and amateur astronomical community, offering very good to excellent products, some of which are very rare if not impossible to find elsewhere, with unexcelled technical competence, a high degree of in-house quality control, and comprehensive programs of instruction.

DGM Optics Off Axis Newtonian Telescopes - A unique two-mirror unobstructed reflector featuring exceptional contrast and resolution at the fraction of the cost of equal aperture refractors.

Jim's Mobile, Inc. (JMI) - Manufacturer of astronomical telescopes and aftermarket accessories for the amateur and professional astronomer.

Pegasus Optics - Precision annealed Pyrex parabolic mirrors from 18" to 24".

Obsession Telescopes - Manufacturer of Dobsonian telescopes.

Mag 1 Instruments - Manufacturer of the PortaBall telescopes.

University Optics - Suppliers of reasonably priced astronomical accessories, known for their eyepieces.

Virgo Astronomics - Manufacture and market a wide variety of top-quality binocular holders, mounting systems and accessories. Can handle any size binoculars from the smallest birders' set up to 80 mm astro units. All units allow binoculars to be used HANDS FREE.

GRUPPO MANFROTTO - Leaders in professional camera and lighting supports.

Astro-Physics Inc. - State-of-the-art astronomical instruments for discriminating observers and astrophotographers.

Galaxy Optics - Manufacturers of precision astronomical mirrors for Newtonian telescopes and other optical designs for the amateur and professional astronomer.

AstroSystems Products - Manufacturer of truss telescope kits, telescope components and astronomical accessories, including star charts, collimating tools and telescope covers.

Mountain Instruments - Makers of fine equatorial mounts and telescopes.

Litebox Telescopes - Makes 12.5, 15, and 18 inch Dobsonian telescope frames.

Brass Telescopes by The Glass Eye - The Glass Eye features collectible quality, nautical, brass telescopes, hand held travel telescopes and all weather telescopes.

Starsplitter Telescopes - Manufacturer of Dobsonian telescopes.

China Optician-Phenix Optics - Offers astronomical telescopes, binoculars, optical glass lenses, and other optical science equipment.

Parallax Instruments - A manufacturer of precision Newtonian and classical Cassegrain astronomical telescopes, German equatorial mountings, tripods and custom portable or permanent observatory welded steel piers.

Sky Valley Scopes - Custom built newtonian telescopes for amateur astronomers and telescope tubes for home telescope builders.

Telescope Technologies Limited - Manufacturers of large professional robotic telescopes.

D and G Optical - Offers optical supplies and equipment for astronomy-related sciences and persons interested in the astronomy field.

Dantronix Research and Technology, LLC - Producer of the Opticlean polymer, which cleans mirrors and corrector plates. Also offers telescope mirrors.

Custom Telescopes UK - Offers telescopes, Newtonian mirror sets, eyepieces, and other accessories.

Weidy Optical - Provides telescopes and accessories for the amateur and professional astronomer.

Stargazer Steve Telescopes - Home of Stargazer Steve's excellent Sgr-3 handmade telescope and the deluxe 4 1/4 inch kit you can build. View more sky for less.

TeleVue Optics - Manufacturer of premium refractor telescopes, eyepieces, and accessories. Products include Nagler eyepieces, Panoptic eyepieces, Radian eyepieces, Plossl eyepieces, barlows, Powermate, Ranger, 101, fluorite refractors, apochromatic refractors. TeleVue refractors feature flat field, defraction-limited optics using ED and other exotic glass.

California Tubular Designs - Artistically designed tubes for use in Dobsonian telescopes.

The Insulated Dew Shield - Offers custom insulated dew shields for refractors and compound telescopes.

Sky Commander - Manufacturer of Sky Commander digital setting circles.

Discovery Telescopes - Manufacturer of optics and complete telescopes.

TAURUS Technologies: Astrophotography - TaurusTracker, flip mirror, focuser, off-axis guider.

Rigel Systems - Manufacturer of LED flashlights for astronomy, aviation, surveillance, hiking, birding, outdoors, ... and of other astronomy accessories.

Telescope Engineering Company - TEC - Designs and manufactures precision optics, optical systems and comlete telescopes.

Zhongshan City Mingca Hi-Tech Optical & Electronic Instrument Company - Leading optical product manufacturer and exporter in China. Product range includes binoculars, cameras, and prisms.

T&T Binocular Mounts - Makes a full line of quality mounts and crutch tripods for comfortable steady binocular viewing.

North United Ltd - Leading optical product manufacturer and exporter in China. Products include binoculars, telescopes, riflescopes, spotting scopes, night vision scopes, golf scopes.

Stellarvue - Telescopes, binoculars, accessories, training.

Tianjin Nitsu Optical Products Co., Ltd. - Chinese manufacturer of small refractor telescopes.

Astro Haven - Fiberglass clamshell domes for observatory, planetarium, radar-tracking housing, portable bandstand.

Advanced Telescope Systems - Manufacturer of telescope portable piers in custom sizes and heights. Custom accessories for special customer needs.

Guan Sheng Optical Co., Ltd. - Telescope manufacturer in Taiwan. Makes both reflector and refractor type telescopes.

Chongqing Shunjiang - Manufacturer of telescopes: binocular, monocular, military, water proof, night vision, golf, rifle, astronomical.

Cstar Optics - Telescopes and binoculars.

Medic-Care - Binoculars, microscopes, door viewers, meter,s crystal decorations, gemstone gift boxes, educational toys; in Hong Kong.

AstroTechniek - Manufacture of custom made telescopes and mounts, computer controls, suppliers of CCD camera's, optics, accessories and software.

Deep Space Navigator - Telescope to computer interface, motor drive for Dobsonian mounted telescopes, high resolution optical encoders, and custom encoder mounting hardware.

Eastcolight Limited - A leading educational toy manufacturer and exporter in Hong Kong. Product range includes microscope toy and telescope toy.

VOD AV CR Turnov - Optical Development Workshop of Academy of Sciences of Czech Republic - developer and producer of all optics elements and systems

Great Wall (Optical) Plastic Works Ltd - Optical products manufacturer. Binoculars, optical microscope and telescope manufacturer and supplier. Supplies binocular products in china, hong kong and asia.

Draco Productions - offers beginner telescope kits and accessories--eyepieces and Baader Solar Filter material. Completed telescopes are also available.

Long Perng - Manufacturer of spotting scopes, fieldscopes, telescopes, and binoculars.

Dark Sky Telescope Accessories - Manufactures a few solid, well made telescope components including a camera mount, spider with diagonal mirror mount, and a drive stepper controller.

Fuzhou Fuhua Optics Ltd. - Manufacturer and exporter of binoculars, opera glasses, spotting scopes, and golf scopes.

B2B Sports Optics - Offers customer labeled telescopes and binoculars to a wide range of businesses as corporate gifts and promotional tools.

Optic Mall - Manufacturer and direct online retailer of telescopes and binoculars.

Starmaster Portable Telescopes - Manufacture of high quality, portable truss mounted Dobsonian telescopes.

Nisur Systems - Offers telescope accessories, including mounts, tripods, and optical encorders.

Oberwerk Optical Products - Offers binoculars and binocular telescopes.

Kunming Yuanda Enterprises Group - Produces binoculars, spotting scopes, and hand-held monoculars.

Oldham Optical UK - Offers telescope accessories including mirrors, lenses prisms, and calibration equipment to the professional and amateur market.

Sibir Optics Inc. - Offers telescopes, binoculars, night vision equipment, tripods and accessories. Online product ordering.

Sky-Watcher Telescope - Products include refractors, reflectors, dobsonians, mounts, and other accessories. Also offers tips on choosing a telescope, telescope basics, and sky observation.

Telescopes for Amateur Astronomers - Russian manufacturer of refractors, newtonians and telescopes. Offers a discussion group, articles, and regional sales websites.

Astronomy Optics - Carries telescopes geared toward both the beginning as well as the seasoned astronomer. Provides astronomical information and help on choosing equipment.

Wildcard Innovations - Manufacturer of a digital telescope computer.

In-Focus Telescopes Co. - Offers the specifications, price, and picture of the telescope it manufactures.

Land Sea & Sky, Home of Takahashi Telescopes - The ultimate source for high quality, research grade Takahashi telescopes and mounts. We also carry a full line of products and accessories from Meade, Celestron, Tele-Vue, and Losmandy.

DFM Engineering, Inc. - Electro-Optical Telescopes, Lidar & Astronomical Instruments: Electro-Optical Systems & Observatory Design Consulting, Remote Observing, Telescope Controls, Telescope Rebuilding, Telescope Optics, and Beam Directors, provided by DFM Engineering.

Optical Guidance Systems Telescopes - Optical Guidance Systems (OGS) manufactures custom and research-grade telescopes for professional and amateur astronomers.

Edmund Scientific - Manufacturer of the Astroscan telescope.

Coronado Solar Filters and Telescopes - Coronado manufactures research-grade telescope solar filters and dedicated solar instruments from 44 to 140mm.

Ash Observatory Domes. - A leader in the design and manufacturing of high quality observatory domes and tracking instrument shelters.

RVR Pro-Class Telescopes - RVR Optical, Inc. is a supplier of Professional-Class telescopes from 10" in aperture to well over 1-meter. Custom manufacturing is also available.

NOVA Optical Systems - Telescope mirrors made from fine annealed Pyrex or fine annealed, zero expansion Sitall and hand figured to produce a smooth zone-free surface, guaranteed to exceed the diffraction-limited tolerance.

Torus Optics - Designs and manufactures research-quality optics, opto-mechanical instruments (such as Lidar), and cutting-edge computer-controlled telescopes.

Thousand Oaks Optical - Manufacturer of SAFE Solar filters for 20 years. Solar filters, solar eclipse viewers, H-Alpha filters, nebular filters.