| CLIENT | WATER PURIFICATION | WASTE TREATMENT/PROCESSING | ||
| TECHNICAL | MARKETING | TECHNICAL | MARKETING | |
| 3M COMPANY | X | X | X | X |
| St. Paul, MN | ||||
| ADVANTALIFE | X | X | ||
| Hunt Valley, MD | ||||
| AIR PRODUCTS & CHEMICALS | X | X | ||
| Allentown, PA | ||||
| AKZO NOBEL | X | X | X | X |
| Deventer, The Netherlands | ||||
| AL-OBAIDI TRADING & CONTRACTING CO. | X | X | ||
| Safat, Kuwait | ||||
| AMERIWATER, INC. | X | X | ||
| Dayton, OH | ||||
| AT & T | X | |||
| Orlando, FL | ||||
| ATLANTIC FILTER | X | X | ||
| West Palm Beach, FL | ||||
| ATLANTIC STATES LEGAL FOUNDATION | X | X | X | X |
| Syracuse, NY | ||||
| AUTOTROL CORP. | X | X | ||
| Milwaukee, WI | ||||
| B.F. GOODRICH COMPANY | X | |||
| Beltsville, MD | ||||
| BAGA INTERNATIONAL AB | X | X | ||
| Karlskrona, Sweden | ||||
| BASF CORP. | X | |||
| South Brunswick, NJ | ||||
| BASIC AMERICAN FOODS | X | |||
| Black Foot, ID | ||||
| BEND RESEARCH, INC. | X | X | X | |
| Bend, OR | ||||
| BETHLEHEM STEEL CORP. | X | |||
| Bethlehem, PA | ||||
| BIODERM, INC. | X | |||
| Tampa, FL | ||||
| BIO-METRIC SYSTEMS, INC. | X | |||
| Minneapolis, MN | ||||
| BIOMIN, INC. | X | |||
| Ferndale, MI | ||||
| BLACK & VEATCH | X | |||
| Phoenix, AZ | ||||
| BODUM, INC. | X | |||
| Racine, WI | ||||
| BOOZ ALLEN & HAMILTON | X | |||
| London, United Kingdom | ||||
| BRILLIANT WATER SOLUTIONS | X | |||
| Den Haag, The Netherlands | ||||
| BRUSH WELLMAN | X | |||
| Shoemakersville, PA | ||||
| BURGESS & NIPLE, LTD. | X | |||
| Columbus, OH | ||||
| CALGON CARBON CORP. | X | X | ||
| Pittsburgh, PA | ||||
| CANADIAN WATER QUALITY ASSOCIATION | X | X | ||
| Toronto, Ontario, Can. | ||||
| CBI INDUSTRIES, INC. | X | X | ||
| Oak Brook, IL | ||||
| CDR PIGMENTS/DISPERSIONS | X | |||
| Elizabethtown, KY | ||||
| CELANESE CORP. | X | |||
| Charlotte, NC | ||||
| CELGARD, INC. | X | X | ||
| Charlotte, NC | ||||
| CHESTER ENVIRONMENTAL | X | |||
| Pittsburgh, PA | ||||
| CHEVRON, INC. | X | |||
| Richmond, CA | ||||
| CIBA-GEIGY CORP | X | |||
| Toms River, NJ | ||||
| CMA, PA | X | |||
| Minneapolis, MN | ||||
| COCA-COLA | X | |||
| Puerto Rico | ||||
| COMPACT MEMBRANE SYSTEMS, INC. | X | |||
| Wilmington, DE | ||||
| CONKLIN CO., INC. | X | X | ||
| Shakopee, MN | ||||
| CONSEP MEMBRANES, INC. | X | X | ||
| Bend, OR | ||||
| CONTROL DATA CORP. | X | |||
| Minneapolis, MN | ||||
| CORNING, INC. | X | X | ||
| Corning, NY | ||||
| CORONADO GENERATING STATION | ||||