National Ground Water Association (NGWA) Members
- Allegheny Instruments, Inc.
- Amarillo Gear Company LLC
- Amarillo Gear Company LLC
- Aqua Science
- Aquaterr Instruments & Automation, LLC
- Baker Manufacturing Co, LLC - Water Systems Division
- Diedrich Drill, Inc.
- Eno Scientific
- Ground Water Science
- Hydro Resources, Inc.
- LD Rhino Rig
- Lotus Pipes & Rockdrills USA Ltd.
- McCurry Hydrology, LLC
- Oak Environmental Inc.
- Pulsafeeder, Inc. - A unit of IDEX Corporation
- Quick Tanks, Inc.
- Regency Wire
- RockBuster International
- Rockmore International, Inc.
- Strata, LLC (formerly known as GeoStat Environmental)
- Whetstone Associates
- Wholesale Pump & Supply