 | Albright and Wilson Americas
 | Toronto, Ontario |
|
 | Alcan
 | Grande Baie, Quebec |
|
 | Angell, Townson and Williams
 | Toronto, Ontario |
|
 | ABB
 | Guelph, Ontario |
|
 | ABB
 | Milton, Ontario |
|
 | ABB
 | Montreal, Quebec |
|
 | ABB
 | Varennes, Quebec |
|
 | B.C. Hydro and Power Authority
 | Vancouver, British Columbia |
|
 | Brunswick Mining and Smelting Ltd.
 | Bathurst, New Brunswick |
|
 | City of Nelson Nelson,
 | British Columbia |
|
 | CN
 | Montreal, Quebec |
|
 | Cominco
 | Trail, British Columbia |
|
 | Cornwall Electric
 | Cornwall, Ontario |
|
 | Denison Mines
 | Elliot Lake, Ontario |
|
 | DPH Engineering
 | Calgary, Alberta |
|
 | Federal Pioneer Ltd.
 | Toronto, Ontario |
|
 | Federal Pioneer Ltd.
 | Winnipeg, Manitoba |
|
 | Ferranti Packard Ltd.
 | Leon, Mexico |
|
 | Ferranti Packard Ltd.
 | St. Catherines, Ontario |
|
 | General Electric
 | Buffalo, New York |
|
 | General Electric Canada
 | Peterborough, Ontario |
|
 | General Electric Canada
 | Burlington, Ontario |
|
 | Great Lakes Power Limited
 | Sault Ste. Marie, Ontario |
|
 | Hatch Associates Ltd.
 | Toronto, Ontario |
|
 | Imperial Oil
 | Sarnia, Ontario |
|
 | Kemper Group
 | Walnut Creek, California |
|
 | Kilborn Engineering
 | Toronto, Ontario |
|
 | Kimberly Clark
 | Toronto, Ontario |
|
 | K Tek
 | Markham, Ontario |
|
 | MagneTek Electric Inc.
 | Waukesha, Wisconsin |
|
 | Maritime Electric
 | Charlottetown, Prince Edward Island |
|
 | Markham Electric Limited
 | Markham, Ontario |
|
 | Moloney Electric
 | Toronto, Ontario |
|
 | Nebraska Public Power District
 | Columbus, Ohio |
|
 | New Brunswick Electric Power Comm
 | Fredericton, New Brunswick |
|
 | Newfoundland and Labrador Power
 | St. John's, Newfoundland |
|
 | Northeast Utilities
 | Hartford, Connecticut |
|
 | Northern Transformers
 | Toronto, Ontario |
|
 | Nova Scotia Power Incorporated
 | Halifax, Nova Scotia |
|
 | P.U.C. Sault Ste. Marie
 | Sault Ste. Marie, Ontario |
|
 | P.U.C. City of St. John
 | St John, New Brunswick |
|
 | Pow Com Utility Supply Inc.
 | Kemptville, Ontario |
|
 | Power Serv Pacific
 | Vancouver, British Columbia |
|
 | Power Tel Utilities Contractors
 | Whitefish, Ontario |
|
 | PowerTran
 | Edmonton, Alberta |
|
 | Prince George Pulp and Paper
 | Prince George, British Columbia |
|
 | Prolec/GE
 | Monterrey, Mexico |
|
 | Rex Manufacturing
 | Toronto, Ontario |
|
 | Salt River Project
 | Phoenix, Arizona |
|
 | Salvage Association
 | Montreal, Quebec |
|
 | Saskatchewan Power Corporation
 | Regina, Saskatchewan |
|
 | Spec Fab Inc.
 | Mississauga, Ontario |
|
 | Stelco Inc.
 | Hamilton, Ontario |
|
 | Trans Alta Utilities
 | Calgary, Alberta |
|
 | University of Regina
 | Regina, Saskatchewan |
|
 | West Kootenay Power Corporation
 | Trail, British Columbia |
|
 | Westinghouse Canada
 | Hamilton, Ontario |
|
 | Zurn/Nepco
 | Portland, Maine |
|