- 永安冷暖气有限公司
- A- AAAAKnight Plumbing & Heating Ltd.
- Casement Electric
- A- Astro Plunbing & Casfitting
- Panorama Electric Ltd.
- Petersen's Electrical Services Inc.
- Wilson Furnace & Duct Cleaning
- Associated Appliances & Refrigeration
- Concept Electric Ltd.
- 朱氏
- 加华电器
- De Klerk Electric Ltd.
- Ram Cleaning Services Ltd.
- E001Custom Electric Ltd.
- 光发无线电器维修中心
- Kristian Electric Ltd.
- 彩虹电器行
- H F Clarke Industrial Inc.
- Alberta Furnace Cleaning
- 长城电力工程公司