Companies catalogue
- J A MacDonald London Ltd, London
- J A MacDonald London Ltd, London
- J H Vincent Svc, London
- J T Embroidery & Novelties, London
- J V Mcdonnell Electrical Construction, London
- J&K Overhead Doors, Saint Thomas
- J-AAR Excavating, Ilderton
- J. Dean Williamson Ltd, London
- J.B. Simpson Jewellers Inc., London
- JENN & Larry's, Stratford
- JJ Music Sales, London
- JJJ Engineering Ltd, London
- JLM Metal Recycling, Hagersville
- JMC Contracting, London
- JMR Electric, London
- Jack Chambers Children's Centre, London
- Jackal Trades Inc, London
- Jake's Welding Inc, Norwich
- Jamieson Courier Svc, London
- Jean Vanier Children's Centre, London
- Jean Vanier Children's Centre, London
- Jeff Braun General Contracting, London
- Jenkins Electric, London
- Jesstec Industries, London
- Jesstec Industries Inc, London
- Jjja Consulting, London
- Jockey International Inc, London
- Joe Fresh, Cambridge
- Joe Fresh, Cambridge
- Joe Fresh, Hamilton
- Joe Fresh, Kitchener
- Joel Hayes Electric, Saint Thomas
- John & Vicki's Valu-mart, London
- John Bellone's Musical Instruments, London
- John's Drafting Service, London
- John's valu-mart, London
- Johnson Electric, London
- Johnston Bros (Bothwell) Ltd, Komoka
- Jomar Window & Doors, London
- Jones Mervin Drilling Ltd, Thorndale
- Junction Beats, London
- Juvenile Diabetes Foundation, Toronto