Eco sac water bladders
- Australian company specialising in equipment for household rainwater harvesting and storage, including water bladders for storage. Includes information about how these systems work.
- http://www.ecosac.com.au

Le Reservoir MASSAL
- European manufacturer of pressurized vessels.
- http://perso.orange.fr/lrm/anglais/2000.htm

Royal Liner
- Manufactures custom tank liners for process and storage tanks. Also offers secondary containment liners.
- http://royalliner.com/

Resin-Fab
- Manufactures above ground, corrosion resistant fiberglass tanks for water, waste water, and chemical storage.
- http://www.resin-fab.com/

Pack-A-Tank
- An engineered, collapsible tank for storing or hauling drinking water or other liquids.
- http://www.packatank.com/

Polyworld
- Manufactures a wide range of polyethylene rainwater and industrial tanks.
- http://www.polyworld.com.au/

How Water Towers Works
- Text and color illustrations to explain the operation of water storage towers.
- http://www.howstuffworks.com/water.htm

Darco Inc.
- Specializing in polyethylene and fiberglass underground water storage tanks for potable water, fire protection, and sewage treatment.
- http://www.darcoinc.com/index.html

DSM Industries Trichy
- Home of the India Mark II and Mark III Deep Well Hand Pumps, and the Emergency/ICU Beds.
- http://www.dsmit.com/