EnTech® Engineering, Inc. Client List
| Utilities | Consultants |
| Union Electric Company | Parsons Brinkerhoff |
| Chicago Water Reclamation Sewer District | Campbell Design Group |
| Illinois-American Water | Citicorp |
| ENEL - Naples, Italy Rome, Italy | Ciorba Group |
| CyberTel Cellular | Hellmuth, Obata, & Kassabaum |
| St. Louis County Water Company | Horner & Schifrin |
| Pennsylvania Electric Company | Hoyle, Tanner & Associates |
| National Water Utilities - Spain | KBR Engineering |
| National Water Utilities - Germany | Kenneth Balk & Associates |
| National Gas Company - Spain | Kuhlmann Design Group |
| Metropolitan Sewer District of St. Louis | Mel Schiff & Associates |
| Los Angeles County Sewer District | Sandoval Engineers |
| Illinois Power | Shannon & Wilson, Sverdrup Corporation |
| China Light & Power – Hong Kong | Hardesty & Hanson, NY |
| Jacobson Engineering |
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| City & State Government | Real Estate Management |
| City of Bridgeton | Coldwell Banker |
| City of Creve Coeur | Boatmen's Bancshares, Inc. – Real Estate |
| City of St. Louis | Edward D. Jones & Company – Real Estate |
| City of Town & Country | Follman Properties |
| State of Missouri | Nooney Company |
| St. Louis Zoo | Trammel-Crow |
| St. Louis Art Museum | Turley Martin |
| City of Cincinnati | |
| National Science Foundation |
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| Hospitals | Construction |
| St. Louis Children’s Hospital | Alberici |
| St. Luke's Hospital | Bangert Brothers |
| Cardinal Glennon Hospital | Kozeny-Wagner |
| Jewish Hospital | Martin K. Eby |
| Bethesda General Hospital | McCarthy Brothers |
| Barnes Hospital | Insituform |
| TPL - Rome, Italy |
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| Manufacturers | Defense |
| Anheuser-Busch, Inc. | Department of Defense |
| Bethlehem Steel Corporation | Department of Energy |
| Emerson Electric | US Air Force |
| Ford Motor Company | National Science Foundation |
| Kimberly-Clark Corporation | Office of Surface Mining |
| Lever Brothers | Bureau of Land Management |
| National Steel Corporation | Sandia National Laboratory |
| Nestle Food Corporation | Boeing |
| Pet, Inc. | McDonnell Douglas Corporation |
| Ralston Purina | |
| Rouge Steel Company | |
| Johnson Controls |
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| Transportation | Petro-Chemical |
| Illinois DOT | Clark Oil |
| Missouri DOT | Chevron |
| Kansas DOT | Coastal Oil |
| Bi-State Development Agency | Exxon |
| St. Louis Metro Link | Mallinckrodt |
| New York Port Authority | Shell |
| Phillips | |
| Tosco | |
| BPAmoco |