- Gas Station, St Jacobs - Service & Filling Station
- General Business Consulting, St Jacobs
- General Business Services, St Jacobs
- General Consultants, St Jacobs
- General Merchandise Stores, St Jacobs
- Generators, Compressors, Pumps, Motors & Fans, St Jacobs
- Gift Shops, St Jacobs - Gift, Novelty & Souvenir Stores
- Gifts By Type & Occasion, St Jacobs
- Gifts Wholesale & Retail, St Jacobs
- Gifts, Cards & Stationery Stores, St Jacobs
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- Glass & Glass Products, St Jacobs
- Glass - Auto, Float, Plate, Window & Doors, St Jacobs
- Gloves Retail, St Jacobs
- Golf Course Architect, St Jacobs
- Golf Course Architects, St Jacobs
- Gourmet Food Stores, St Jacobs
- Government, St Jacobs
- Graphic Design Services, St Jacobs - Graphic Designer
- Graphic Designer & Artist Services, St Jacobs
- Group Homes, St Jacobs
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