| WT Parker Ltd |
| Complete electrical and mechanical building services contractor. Specialising in data networks and building management. |
| | WWW Electrical Ltd |
| Nationwide electrical contractor operating in all onshore sectors, carrying out contracts from domestic work through to large-scale commercial installations. |
| | Wallis Electrical Services |
| Commercial and industrial electrical contractors and SSAIB accredited security engineers. Based in South-West England. |
| | West Supply |
| Offer services to the industrial sector, including maintenance and installation. Contact details and client list. |
| | Wright Electrical Services |
| Solihull-based electrical contracting company serving the West Midlands. Catering for domestic and commercial clients with lighting, wiring and testing requirements. |
| | tjames Electrical Ltd |
| Electrical contractors to the people and businesses of Northamptonshire and the East Midlands. Providing a wide range of services from new installations to data cabling. |
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