NT Laboratories
Conducts research and produces products for the care of aquariums, ponds and pool fish, including Koi, since 1972 in East Peckham, Kent, England.
http://www.ntlabs.co.uk/

Clearseal Aquarium Manufacturers
A United Kingdom based company that specializes in aquariums and aquarium stands. A large range of accessories are also available, such as aquarium hoods.
http://www.clearseal.com/

Hawkeye International
Designer, manufacturer and distributor of seamless acrylic plastic aquariums, filters and accessories. Based in Shawnee, Kansas.
http://www.hawkeyeaquarium.com/

Guangdong Risheng Group Co. Ltd.
Manufacturer of aquarium accessories including air pumps, heaters, internal power filters, and ornaments. China.
http://www.resun-china.com/

Oceanic Systems
Manufacturers of aquariums in different shapes including custom designs. also produces caps and stands.
http://www.oceanicsystems.com/

Red Sea
Manufacturers of a variety of aquarium equipment in Houston, Texas.
http://www.redseafish.com/

CPR Aquatic, Inc
Manufacturing biological filtration products as well as skimmers. Located in Arcata, California.
http://www.cprusa.com/

CustomSeaLife, Inc.
Manufacturers of aquarium lighting fixtures.
http://www.customsealife.com/

AquaC Inc
Manufacturer of marine filtration products and protein skimmers. Louisville, Kentucky.
http://www.proteinskimmer.com/

Tropical Marine Centre
Supplies tropical marine fish and invertebrates in Europe and manufactures a wide range of aquatic products.
http://www.tmc-ltd.co.uk/

Jebo Co. Ltd.
An international company that develops and manufactures aquariums, accessories and submersible pumps.
http://www.jebo.com.cn/

Sealand Holdings Co Ltd
Product range includes fish tanks and related equipment. Located in Hong Kong.
http://www.sealand.com.hk/

All-Glass Aquarium
Manufacturers of aquariums, hoods and stands with instructions, catalog, and technical information.
http://www.all-glass.com

Caribsea, Inc.
Aragonite and sand for marine aquariums.
http://www.carib-sea.com/

National Fish Pharmaceuticals
Manufacturer with bulk sales of pharmaceuticals and chemicals for the tropical fish industry. Product list, and articles about diseases and prevention.
http://www.fishyfarmacy.com/

Aquarium Lighting and Supply
Wholesaler of lighting for marine systems and aquariums.
http://www.aquariumlighting.com/

Saline Solutions Inc.
Manufacturers of acrylic aquariums and saltwater/freshwater filtration products including protein skimmers, trickles, prefilters and carbon dioxide reactors.
http://www.salinesolutions.net

Aquatica International
Wholesaler of filters and livestock, including tropical, coldwater, and ornamental fish. Surrey, England.
http://www.bubblebeadfilters.co.uk

Oceanariums
Builds custom acrylic aquariums with integrated stands, hoods, and filtration. Based in Daytona Beach, Florida, USA.
http://www.oceanariums.com/

Deyi Arts and Crafts Products Factory
Designing and producing imitation coral, aquarium decorations and artificial bonsai. Guangzhou, China.
http://www.gzdeyi.com

Aquatic Biodiversity Group
Developing fishery management, hatchery technology and a co-operative information network about the temperate marine environment. Includes lists of available specimens. Tasmania, Australia.
http://www.aquaticbiodiversitygroup.com.au/

HkO Aquatic Solutions
Designing, installing and maintaining aquariums in commercial and residential premises.
http://www.geocities.com/scott_hembruff/

AA Aquarium Equipment
Producing tanks, filters, pumps and accessories for Hong Kong and China.
http://www.aa-aquarium.com/

Fritzpet
Supplying chemicals and equipment for aquariums, with maintenance tips and species database. Mesquite, Texas, USA.
http://www.fritzpet.com

Guangzhou Weiao Industry Co Ltd
Manufacturer and exporter of aquarium accessories including background screen, fish food, cleaner, underwater ornaments and scrapers. Guangdong, China.
http://www.weiao-china.com/pframe.html

BRI Aquatic Cabinets
Manufacturer of glass and acrylic custom aquarium cabinets and canopies. Includes illustrated catalog and list of vendors.
http://www.briaquaticcabinets.com

Aquamacs
Rental, installation and maintenance of aquariums for commercial premises across the United Kingdom, with photographs and testimonials.
http://aquamacs.co.uk

The Classic Cabinet Company
Manufacturers of aquarium cabinets and hoods, with stockists throughout the United Kingdom.
http://www.theclassiccabinetcompany.co.uk/

Sho Koi Ultra
Producers of food for koi and pond fish. Includes feeding guide and care advice, product ingredients, pricing, and dealer listings.
http://www.shokoi.com/ultra.htm

Aquapor
Producing aquariums, heaters, lighting, filters and accessories. Codex, Portugal.
http://www.aquapor.pt/

New Life International
Fish farm that specializes in African Malawi Cichlids. Manufactures New Life Spectrum fish food and produces books on marine aquariums and plants.
http://www.nlpublish.com/

Hydro Logix, Inc
An aquarium maintenance company offering custom design and installation.  Western Connecticut and New York City, USA
http://www.westportaquarium.com

Pro Clear Aquatic Systems, Inc.
Manufactures filters, protein skimmers, pumps and lights, as well as making and installing aquariums and filtration systems for retail stores, private collectors, and wholesalers. Jacksonville, Florida, USA.
http://www.proclearaquatics.com

Dupla Aquaristik
Manufacturers of filters, heating, and aeration systems for aquariums, with information about raising salt-water fish. Bielefield, Germany.
http://www.dohse-aquaristik.de/