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/

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

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

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/

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

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

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

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

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

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

Salt Lake Shoreline Aquaculture, LLC.
- Suppliers of brine shrimp eggs and larval feeds for the shrimp, fish and aquarium industries. Includes nutrition analysis and hatching information.
- http://www.saltlakeshoreline.com/

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

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

Yong Cheng Aquatic Equipments Factory
- Manufacturing aquariums, pumps, lights, filters and accessories. Zhongshan, Guangdong, China.
- http://www.sonpar.com.cn

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

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

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

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

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

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

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

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

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/

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

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

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

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

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

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

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/

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/

Aquarium Pharmaceuticals
- Supplier of a water filtration pouch for fresh and saltwater aquariums.
- http://www.aquariumpharm.com/