- Games & Hobbies, Plessisville
- Garment & Linen Services, Plessisville
- Gas Engine, Plessisville
- Gas Station, Plessisville - Service & Filling Station
- General Business Services, Plessisville
- General Hardware Stores, Plessisville
- General Merchandise Stores, Plessisville
- Generators, Compressors, Pumps, Motors & Fans, Plessisville
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- Geographic & Geomatic Products, Plessisville
- Geographic & Geomatic Services, Plessisville
- Gifts, Cards & Stationery Stores, Plessisville
- Glass & Glazing Contractors, Plessisville
- Glazing Contractors, Plessisville - Glass - Window Glazing
- Golf Clubs Private, Plessisville
- Government, Plessisville
- Ground Transportation, Except Passenger, Plessisville
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