Astronomy Technologies
- Manufacturer of high end, high quality, yet affordable APO refractors and accessories.
- http://www.astronomytechnologies.com/

Jinoscope
- Produces telescopes which are individually manufactured to fit each customer's specific needs. Many parts of each customer's telescope are manufactured in house to assure quality control, and numerous options and customizations are available.
- http://www.jinoscope.com/

NPZ Optics State Corp.
- Russian manufacturer of high quality optical equipment for law enforcement and civilian use, such as day/night vision sights, powerful binoculars and astronomical telescopes.
- http://www.npzoptics.com/

iOptron Scientific, Inc.
- Manufactures microscopic, telescopic, spectroscopic and fiber endoscopic instrumentation and subsystems for astronomic, measurement and analysis, medical, laboratory applications.
- http://www.ioptron.com/

Swarovski Optik
- Austrian manufacturer of binoculars, telescopes, rifle scopes, night vision instruments, and tripods.
- http://swarovskioptik.com/

Obsession Telescopes
- Manufacturer of Dobsonian telescopes ranging from 12-1/2" to 30" in aperture. Optional accessories include the ServoCAT servo drive system which may be combined with the Argo Navis digital setting circles.
- http://www.obsessiontelescopes.com

Kendrick Astro Instruments
- Products include the Dew Remover System, portable power packs, Kwik Focus masks, observer tents, shelter domes and observing chairs.
- http://www.kendrickastro.com/astro/

Hardin Optical
- Astronomical telescope optics, oculars and accessories sold under the Astrola name. Company is owned by Larry Hardin, a former employee of Cave Optical.
- http://www.hardin-optical.com/

DGM Optics
- Produces a unique unobstructed Newtonian reflector which features improved contrast and resolution compared to conventional Newtonians.
- http://users.erols.com/dgmoptics/

Astro Technologies, Ltd.
- Manufacturer of components for large aperture truss tube telescopes. Products include truss tube joints, clamping blocks and a complete truss tube kit. Products can be purchased using PayPal.
- https://astrotechnologies.sslpowered.com

Rigel Systems
- LED flashlights for astronomy and aviation, astrophotography accessories, collimation tools, finders, motorized focusers and controllers, plus other accessories.
- http://members.cox.net/rigelsys/rigelsys.html

GoTo & Tracking Systems
- Custom made GoTo mounts which are designed to the customer's specifications, plus GoTo conversions of existing telescope mountings. Complete machining and fabrication services are also available.
- http://4dw.net/svdgoto/

PlaneWave Instruments
- Manufactures a 20" F/6.8 Coma-free Dall-Kirkham (CDK) optical tube assembly which features a 42mm flat and corrected field plus lightweight carbon fiber and aluminum construction.
- http://www.planewaveinstruments.com/

Tubes for Telescopes
- Artistically designed tubes for use in Dobsonian telescopes.
- http://astronomy-mall.com/regular/products/t4t/

AWR Technology
- Offers simple and GOTO telescope drives, sidereal time clocks and other electronics equipment for astronomers.
- http://www.awrtech.co.uk/

Astrodon
- Manufactures LRGB and other types of narrow band filters for CCD astrophotography. Other products include the remotely controlled ROAG off-axis guider, the TAKometer remote controlled camera rotator for Takahashi refractors, and the RGB Weight Calculator
- http://www.astrodon.com/

Vortex Optics
- A sport optics company which manufactures a complete product line of binoculars, spotting scopes, riflescopes, monoculars, tripods and accessories.
- http://www.vortexoptics.com/

StarTel
- Manufactures the RoboDIMM system for taking astroclimatic measurements of the observatory's atmospheric seeing conditions.
- http://www.robodimm.com/

Tinsley Laboratories
- Specializes in the manufacture of aspherical optics and light-weighted Beryllium mirrors using computer-controlled optical surfacing technologies. The company is famous for producing the optics within the COSTAR optical package which corrected the Hubble
- http://www.asphere.com/

Aquest, Inc.
- Produces telescope accessory products including the AstroHub, PCFocus, FocusAide and PCFocus-LX.
- http://www.aquest-inc.com/

Kite Optics
- Belgian manufacturer of binoculars, telescopes and accessories. Professional optics for birding and outdoor activities.
- http://www.kiteoptics.com/

Eclipse Optical Instruments of Canada
- Official website of Eclipse telescopes of Canada. Exclusive Americas distributor for Orion-Optics UK and Teleskop-Service Germany.
- http://www.eclipsetelescopes.com/

Astro Systeme Austria
- Company objectives are the development, production and marketing of telescopes and mountings that will thrill the hearts of astrophotographers. Manufactures astrographs, Schmidt cameras and telescope mounts for astrophotography.
- http://www.astrosysteme.at/

Webster Telescopes
- Manufacturer of Dobsonian telescopes in sizes from 22 inches to 40 inches in aperture. Fully computerized GOTO control systems are available using either the ArgoNavis or ServoCat electronics. Product lines feature Kennedy Optics throughout.
- http://www.webstertelescopes.com/

Siebert Optics
- USA based manufacturer of 2" Binoviewers, 1.25" Binoviewers, high quality eyepieces, telecentric and regular Barlows and other telescope accessories.
- http://www.siebertoptics.com/

Olivon Scopes and Optics
- Canadian manufacturer of spotting scopes and rifle scopes, binoculars, eyepieces, telescope accessories and tripods.
- http://www.olivonoptics.com/

Questar Corporation
- High quality Maksutov Catadioptric telescopes for astronomy, nature, science and surveillance applications. Entire product line features superior optical performance, machining and finish. Established in 1950.
- http://www.questarcorporation.com

Burgess Optical Company
- Designer and builder of economical astronomical telescopes, binoculars, and accessories including Planetary eyepieces, diagonals, and refractors.
- http://www.burgessoptical.com/

Nightfire Scientific
- Manufacturer, retailer and distributor of telescopes and related astronomy accessories.
- http://www.nightfirescientific.com/

Astrotech Engineering
- Manufactures Ritchey Chretien, APO and Super APO optics, complete RC and refractor OTAs, Dobsonian telescopes, plus professional and custom instrumentation.
- http://www.astrotechengineering.com/

Anssen Technologies
- Australian manufacturer which produces the Allira series of catadioptric robotic telescopes, complete optical tube assemblies, equatorial mounts and other astronomical related equipment.
- http://www.anssentechnologies.com.au/

Hunt Electronic Co., Ltd.
- Manufacturer of central surveillance control systems, CCTV, CCD cameras, DOME cameras, board cameras, box cameras and camera accessories exported to worldwide since 1988. ISO9001 certificated.
- http://www.hunt.com.tw/

Hands on Optics
- Offers astronomical telescopes, Celestron spotting scopes, Pentax eyepieces, digital binoculars and a variety of accessories. Located in Maryland.
- http://www.handsonoptics.com/

LaScala Optics
- Produces a wide product line of lightweight and compact theater binoculars. Product lines include Aida, Carmen, Iolanta, Othello and Rigoletto opera glasses.
- http://www.lascalaoptics.com/

PierWedge.com
- Manufactures and sells equitorial wedges for permanently mounted Schmidt-Cassegrain telescopes.
- http://www.pierwedge.com/

Hextek Corporation
- Manufactures and designs large lightweight mirrors and substrates using gas-fusion, casting, precision slumping and fusion technologies for astronomical, airborne, space borne, commercial, government and military optical systems.
- http://www.hextek.com/

Dongguan Great Wall Optical Plastics Works, Ltd.
- Manufacturer and supplier of microscopes, binoculars and magnifiers. Located in China.
- http://www.greatwalloptical.com.hk/

Micro Tech Lab
- Manufacturer for intermediate optics for connecting digital cameras to microscopes and telescopes. Located in Austria.
- http://www.scopefoto.com/

Astroparts
- Camera adapters, web cam adapters, superwedge for Meade LX-200 classic series, mirror lock screws, focus bearing kits plus a variety of other accessories.
- http://www.astroparts.co.uk/

Wangsness Optics
- Designs and manufactures lightweight mirrors for lidar systems, telescopes, scanners, active optics and airborne optical systems.
- http://www.wangsnessoptics.com/

Zhitong Industrial Co., Ltd.
- A Chinese manufacturer of high quality astronomical telescope accessories.
- http://www.zhitong.net/

OpticPage.com
- Canadian distributor of a variety of optical products which are produced in Asia. Product lines include binoculars, riflescopes, spotting scopes, telescopes, loupes and magnifiers, medical optical instruments and night vision equipment.
- http://www.opticpage.com/

Electro-Optical System Co., Ltd.
- Korean manufacturer of thermal imaging systems, military fire control equipment, night vision viewers and telescopes, military low vision binoculars and optics, and daytime periscopes, optical modules & parts.
- http://www.eosystem.com/

Lee&Kao International Trade Co., Ltd.
- Chinese OEM and distributor of a variety of optics including binoculars, riflescopes, telescopes, microscopes, magnifiers and compasses.
- http://www.leeandkao.com/optics/

ILKO, Inc.
- Manufactures the Night Detective line of night vision optical equipment. Products include a wide range of day and night optical devices, night vision binoculars, night vision monoculars, goggles, opera glasses; plus binoculars, monoculars, scopes, telesco
- http://www.nightdetective.com/

AstroTechniek
- Designs and manufactures large telescopes and mounts, including the CP-165 telescope mount. Offers stepper motor control systems and small telescopes. Located in the Netherlands.
- http://www.astrotechniek.net/

Starlight NV Ltd
- Manufacturers of a variety of night vision products including rifle scopes, Longbow day/night scopes, monoculars, binoculars, goggles and thermal imagers.
- http://www.starlightnv.co.uk

Switched Systems Ltd
- Motor focusing systems for most reflector and refractor telescopes including Meade, Sky-Watcher and Orion telescopes. Systems are also available for Meade ETX-90 and ETX-105 telescopes.
- http://www.switchedsystems.co.uk/

Chlight Optical Industrial Ltd.
- Specializes in the production of magnifiers, binoculars, spotting scopes, telescopes, rifle scopes, night vision devices and optical elements.
- http://www.optics-china.com/

Kunming United Optics Corporation
- Manufactures binoculars and telescopes, and offers OEM design and production services. Headquarters located in Kunming, China.
- http://www.united-optics.com/

Bushnell Performance Optics
- Manufacturer of telescopes, binoculars, spotting scopes, riflescopes, laser rangefinders, speed guns, and weather resistant digital cameras. Products are designed primarily for outdoor, sports and nature enthusiasts.
- http://www.bushnell.com/

Maui Optical Systems and Imaging Center
- Designs and manufactures laser and optical components, telescopes and instruments for astronomy, education, and defense. Offers in-house mechanical and optical design, fabrication, and prototyping.
- http://mosaic.oceanit.com/

StellarCAT
- Telescope control systems and Argo Navis digital setting circles for Dobsonians and equatorially mounted telescopes.
- http://www.stellarcat.biz/

Custom Scientific, Inc.
- Custom optics and interference filters with specialization in astronomical filters.
- http://www.customscientific.com/

Infinite Optics
- Provides thin film coatings and optics for science, medicine, aerospace, and military arenas. Also offers fabrication of optical components to exact specifications.
- http://www.qsptech.com/

Spectrum Coatings
- Uses the Ion Assisted Deposition (IAD) process to produce hard, durable, oxide optical thin films without high temperature substrate heating. Offers many types of coatings including protected aluminum and enhanced aluminum for astronomical mirrors as well
- http://www.spectrum-coatings.com/

H. L. Clausing, Inc.
- Provides mirror and optical coating services, and caters to the industrial, commercial and aerospace industries. Specializes in custom optical coatings on large substrates up to 92 inches in diameter.
- http://www.clausing.com/

Chengdu SWOC Industries Co., Ltd.
- Manufactures telescopes and binoculars, optical components including singlet, doublet, cylindrical and aspherical lenses, prisms and corner cubes, beamsplitters and waveplates, polarizers and coatings.
- http://www.swocoptics.cn/

APT Astro
- Manufactures the AMF Equatorial Wedge, a very heavy duty equatorial wedge, for Meade & Celestron telescopes.
- http://www.aptastro.com/

AIM Controls, Inc.
- Manufactures industrial laser systems and motion control products, precision and custom worm drives in a wide range of sizes and gear ratios, plus a complete line of telescopes, mounts, and control systems for astronomy.
- http://www.aimcontrols.com/

AstroFox: Astronomical Instruments
- Specializes in the manufacture of 10" to 30" Newtonians and Folded Newtonians for amateurs, public observatories and universities. Company also sells primary mirrors with apertures up to 36".
- http://www.astrofox.nl/

LOMO America, Inc.
- Amateur and professional telescopes, microscopes, spotting scopes, night vision devices and 35mm film cameras.
- http://www.lomoamerica.com/

Carl Zeiss International
- Manufactures astronomical telescopes, observatories, domes, optics, focal plane instrumentation and LIDAR equipment. Company also manufactures products for healthcare, vision, measurment and analysis, research, sports, microelectronics, photography and pr
- http://www.zeiss.com/

David Chandler Company
- Quality software and publications for astronomy and astronomy education. Manufactures the Deep Space Navigator telescope to computer interface, motor drives for Dobsonian mounted telescopes, high resolution optical encoders, plus custom encoder mounting h
- http://www.davidchandler.com/

Galaxy Optics
- 18" to 25" Newtonian optics for amateurs and scientists. Also makes diagonals and offers mirror testing, refiguring and coating services.
- http://www.galaxyoptics.com/

Taychert Telescopes
- Produces Dobsonian telescopes in a variety of sizes. The company's FarStar telescope claims to be the lightest weight 18" Dobsonian telescope available from any manufacturer. This company also offers telescopes which are custom built per customer spe
- http://www.tscopes.com/

Kokusai Kohki
- Japanese OEM manufacturer of telescope accessories including WIDESCAN Type III Eyepieces, orthoscopic eyepieces, laser collimators, a "correct view" finder, a unique helicoid off-axis eyepiece holder for Lumicon giant EZ guiders and the "HE
- http://www.kkohki.com/English/kkohkiparts.html

Ken's Rings
- Manufactures tube rings, counterweights, mount saddle plates, guide scope adapter plates and dovetail plates. Also offers custom modified commercial telescopes.
- http://www.kendauzat.net/

Woden Optics
- Manufactures Newtonian optical systems, all types of Cassegrain optical systems including an enhanced Ritchey Chretien optical system with integral field corrector, modified Wynn field correctors, plus optical tube assemblies and complete telescopes made
- http://www.wodenoptics.com/

Galileo's Place
- Galileo's Place is the home of Galileo telescopes, binoculars, and accessories for telescopes and binoculars
- http://www.galileosplace.com/

London Opera Glass Company
- Manufactures, installs and services opera glasses within theatres. The service is free to theatres, and allows patrons to rent opera glasses during a performance.
- http://www.operaglasses.co.uk/

Dream - Telescopes & Accessories
- Offers advanced composite telescopes which utilize carbon fiber, Kevlar and honeycomb materials. Other products include Ritchey-Chretien telescopes, mirror cells, mounting plates and rings, and parts and accessories.
- http://www.dreamscopes.com/

Rainbow Optics
- Offers the Star Spectroscope line of spectroscopy instruments for use with any telescope. Products are excellent for educational use, demonstrating the scientific information which can be gleamed from examining the spectrum of "black body" radia
- http://www.starspectroscope.com/

Agena AstroProducts
- Offers a wide range of economically priced, high-quality telescopes, accessories and books. Brands include Eclipse, Antares, GSO and Oberwerk. Baader solar film and filters are also available.
- http://www.agenaastro.com/

Lightholder Optics
- Newtonian mirrors made and certified in writing to the most exacting, demanding Millies LaCroix tolerance (1/8 wave at the wavefront), twice as precise as the industry 1/4 wave standard.
- http://www.lightholderoptics.com/

De-Zhong Optics.
- Professional Chinese optical products manufacturer and exporter, specializing in traditional binoculars, compact binoculars, zoom binoculars, waterproof binoculars, telescopes and microscopes.
- http://www.de-zhong.com/

Shanghai Olive Industries Co., Ltd.
- Manufactures optical instruments including biological microscopes, stereo microscopes, telescopes and binoculars. Also produces electronic equipment and garden tools.
- http://www.olive-china.com/

Aeroquest Machining
- Worm gear drives for the accurate tracking of deep space and planetary objects for viewing and imaging. Stepper and synchronous motor power systems are available.
- http://www.aeroquest-machining.com/

1stBase
- Produces collapsible Dobsonian mounts which fold up for storage and transportation. Mounts are available separately or sold with Compact Precision Telescopes tube assemblies.
- http://www.astronomy-mall.com/FirstBase/

AstroCards
- Makes AstroCards finder charts, the AstroCards lighting system for viewing the cards at night, and offers a variety of other products.
- http://www.astronomy-mall.com/astrocards/

Trico Machine Products
- Makes the Sky Window binocular viewing system, and is a full machine shop specializing in design, prototype and production of quality machined parts.
- http://www.tricomachine.com/

TECH2000
- Produces the Giro altazimuth tripod mounts, Dobsonian and equatorial drive systems, laser collimators, equipment beacons for use at star parties, p