| CAMECO CORPORATION | Saskatoon | Saskatchewan | S7M 1J3 |
| HUNTING ENERGY SERVICES (CANADA ) LTD | Calgary | Alberta | T2E 7Z7 |
| TRACERCO RADIOACTIVE DIAGNOSTIC SERVICES CANADA INC | Chicago | Illinois | |
| BAKER HUGHES CANADA COMPANY | Calgary | Alberta | T2P 3C5 |
| STUART HUNT & ASSOCIATES LTD | St. Albert | Alberta | T8N 5C1 |
| JEOL CANADA, INC | Saint-Hubert | Quebec | J3Y 8Y6 |
| DONALDSON MARPHIL MEDICAL INC. | Verdun | Quebec | H3E 1H7 |
| NEW BRUNSWICK POWER CORPORATION SOCIETE D'ENERGIE DU NOUVEAU | Fredericton | New Brunswick | E3B 5G4 |
| CANADIAN SCIENTIFIC PRODUCTS LIMITED | London | Ontario | N6H 5J9 |
| IMASIGHT INC. | Gatineau | Quebec | J8Y 6W5 |
| PHILIPS ELECTRONICS LTD/ST JEROME (QUEBEC) | Markham | Ontario | L6C 2S3 |
| MOSAIC ESTERHAZY HOLDINGS ULC | Regina | Saskatchewan | S4P 0M3 |
| WEATHERFORD CANADA PARTNERSHIP | Edmonton | Alberta | T6P 1K1 |
| CANADIAN NATURAL RESOURCES LIMITED | Calgary | Alberta | T2P 4J8 |
| VARIAN MEDICAL SYSTEMS, INC. | Salt Lake City | Utah | |
| EVRAZ INC. NA CANADA | Regina | Saskatchewan | S4P 3C7 |
| SIEMENS CANADA LIMITED/SIEMENS CANADA LIMITEE | Oakville | Ontario | L6H 0H6 |
| BUBBLE TECHNOLOGY INDUSTRIES INC | Chalk River | Ontario | K0J 1J0 |
| CANBERRA CO.LTD. | Concord | Ontario | L4K 4N8 |
| BERTHOLD TECHNOLOGIES U.S.A., LLC | Oak Ridge | Tennessee | |
| PRESSURE CONTROLS | Edmonton | Alberta | T6E 5H4 |
| RADIATION SOLUTIONS INC | Mississauga | Ontario | L4Z 1X2 |
| NEDCO ATLANTIC | Saint-Laurent | Quebec | H4T 1X7 |
| RADIATION MEASUREMENT SYSTEMS | Woodbridge | Ontario | L4L 7A2 |
| BRUCE POWER L.P. | Tiverton | Ontario | N0G 2T0 |
| SCHLUMBERGER WELL SERVICES | Calgary | Alberta | T2G 0P6 |
| THERMO ELECTRON NORTH AMERICA LLC | Fitchburg | Wisconsin | |
| PATLON AIRCRAFT & INDUSTRIES LIMITED | Halton Hills | Ontario | L7G 0B8 |
| VIRTUATRANSIT INC. | Sainte-Foy | Quebec | G1X 5E5 |
| HUNTING TITAN ULC | Nisku | Alberta | T9E 7Z7 |
| BATTELLE MEMORIAL INSTITUTE | Columbus | Ohio | |
| GENERAL ELECTRIC CANADA | Mississauga | Ontario | L5N 5P9 |
| ATHABASCA OIL CORPORATION | Calgary | Alberta | T2P 1K3 |
| DALSA DIGITED IMAGING | Toronto | Ontario | M5K 0A1 |
| HARPELL ASSOCIATES INC. | Oakville | Ontario | L6L 2X4 |
| ONTARIO POWER GENERATION INC. | Toronto | Ontario | M5G 1X6 |
| RAD/COMM SYSTEMS CORP. | Oakville | Ontario | L6H 5S4 |
| ATOMIC ENERGY OF CANADA LIMITED | Chalk River | Ontario | K0J 1J0 |
| UNIVERSITY OF WATERLOO | Waterloo | Ontario | N2L 3G1 |
| NON-DESTRUCTIVE TESTING PRODUCTS LIMITED | St. Catharines | Ontario | L2M 6S9 |
| GAMBLE TECHNOLOGIES LIMITED | Mississauga | Ontario | L5N 2M2 |
| KINECTRICS INC. | Toronto | Ontario | M8Z 5G5 |
| PERKINELMER HEALTH SCIENCES CANADA , INC. | Woodbridge | Ontario | L4L 8H1 |
| STREAM SERVICES | Calgary | Alberta | T2P 0C1 |
| ALARA CONSULTANTS INC | Edmonton | Alberta | T6N 1B2 |