- American Flow Control
 - Manufactures fire hydrants.  Clow Canada
- Manufacturer of gate, butterfly, pressure relief, and other valves, fire hydrants, ULC-FM, and piping accessories.- Kupferle Foundry Company
- Manufacturing high quality hydrants, sampling stations, and water main flushing systems.
- Saudi Factory for Fire Equipment (SFFECO)
- Specializing in the design, manufacture, supply, installation, and testing of fire protection systems and equipment.
- Hydra-Shield
- Fire hydrant security devices to protect firefighting water resources.
- Golden Triangle Pipe
- Manufacturer of valves, custom pipes, and fire hydrants.
- Hydraflo, Inc.
- Manufactures replacement parts to fit many different brands and models of fire hydrants including older or obsolete models.
- Waterware Corporation
- Manufactures, installs, and services automatic sewage regulators and backwater gates. Also services fire hydrants.
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