- American Leak Detection
 - Specialising in the detection of concealed water, gas, and sewer leaks. Franchises worldwide. - Aqua-Stop
- Detects leaks from appliances, automatically shuts off the water supply, and sounds an alarm.
- Bioguard Technologies
- Offers water leak detection and prevention systems.
- Dorlen Products: Oil Alert
- Offers oil leak detection equipment for commercial and industrial applications.
- Dorlen Products: Water Alert
- Offers water leak detection equipment for commercial and industrial applications.
- LeakZone.com
- Leak detection and repair technology news, directory, calendar of events, and ask an expert service.
- Petro Chemical Energy
- Performing air, gas, and steam leak surveys.
- Triple 5 Industries
- Manufacturer of portable leak/fault detection equipment used to locate gas, air, steam, valve, and vacuum leaks.
- Utility Technical Services
- Leak detection and locating services, meter testing and calibration, and fire hydrant and valve servicing.
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