| Darco Inc.: Specializing in polyethylene and fiberglass underground water storage tanks for potable water, fire protection, and sewage treatment. |
| DSM Industries Trichy: Home of the India Mark II and Mark III Deep Well Hand Pumps, and the Emergency/ICU Beds. |
| How Water Towers Works: Text and color illustrations to explain the operation of water storage towers. |
| Hydrair-Oasis Water Machine: Offers a machine that condenses water from the air and filters and purifies it for consumption. Generates up to 68 quarts of water every 24 hours. |
| Le Reservoir MASSAL: European manufacturer of pressurized vessels. |
| Pack-A-Tank: An engineered, collapsible tank for storing or hauling drinking water or other liquids. |
| Polyworld: Manufactures a wide range of polyethylene rainwater and industrial tanks. |
| Resin-Fab: Manufactures above ground, corrosion resistant fiberglass tanks for water, waste water, and chemical storage. |
| Royal Liner: Manufactures custom tank liners for process and storage tanks. Also offers secondary containment liners. |
| Texas Metal Cisterns: Hand-built galvanized tanks for rainwater harvesting, well supplement systems and windmills. Also sells water softeners and reverse osmosis units. |
Classical
