| 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 |
|