Buyer's Guide
| Company | Location | Company Type |
|---|---|---|
| Hydro Flow Products, Inc. | Arlington Hts., | Manufacturer |
| Hydro Instruments | Perkasie | Manufacturer |
| Hydro International | Hillsboro, Oregon, United States | Manufacturer |
| Hydro Quip, Inc. | Seekonk | Manufacturer |
| Hydro-Photon Inc. | Blue Hill | Manufacturer |
| HydroCare USA | Oceanside | Manufacturer |
| Hydronamic Engineering Corporation | Brea | Manufacturer |
| HydroNovation | San Francisco, California, United States | Manufacturer |
| HydroTec Systems Company, Inc. | Tiskilwa | Manufacturer |
| Hydrotech Inc. | Fridley | Manufacturer |
| Hydrotech Inc. | Regina | Manufacturer |
| HydroTech, Inc. | Sarasota | Manufacturer |
| IE Monitoring Instruments | Worthington | Distributor |
| IFAT - Munich International Trade Fairs | New York | Distributor |
| IHS | Tempe | Manufacturer |
| Imperial Industries Inc. | Wausau | Manufacturer |
| IMTEK Environmental Corp | Alpharetta | Manufacturer |
| IMTEK | NoOdor.com | Alpharetta, Georgia, United States | Manufacturer |
| Indumar Products, Inc. | Houston | Manufacturer |
| Industrial Scientific Corp | Oakdale | Manufacturer |
| Industrial Test Systems, Inc. | Rock Hill | Manufacturer |
| Infilco Degremont, Inc. | Manufacturer | |
| Instrumentation Northwest, Inc. | Kirkland | Manufacturer |
| Integra Environmental, Inc. | Ancaster | Manufacturer |
| InterBev | Fairfax | Manufacturer |
