- Griffin Dewatering
 - Services include ground water control, remediation, and effluent and water bypass. Also produces pumps and accessories. - American Drainage Systems
- Vertical wick drain, drainage wicks, and horizontal strip drain speciality installation contractor for soil consolidation, site remediation, and ground improvement.
- Atlas Dewatering Systems
- Offers dewatering techniques for groundwater control on construction sites utilizing vacuum wellpoints, eductor/ejector wells, and deep wells.
- Varicore Technologies, Inc.
- Offers an outdoor multi-flow drainage system made of a series of corrugated polyethylene pipes and wrapped in polypropylene.
- Hepworth Drainage
- Supplies clay, plastic, and underground drainage systems, storm water management and flood defences, reduced access sewer systems, and septic tanks.
- U.S. Wick Drain, Inc.
- Specialising in dynamic compaction and wick drain supply and installation.
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