By city
London 27Manchester 14Sheffield 13Cambridge 10Coventry 10Liverpool 9Norwich 9Preston 9Northampton 9Derby 9Peterborough 9Newcastle upon Tyne 9Hull 8Plymouth 8Leeds 8Bradford 8Huddersfield 8Belfast 8Bedford 8Cardiff 7Stoke-on-Trent 7Milton Keynes 7Leicester 7Doncaster 7
| Name | Category | Address | City | Opening times |
|---|---|---|---|---|
| Kmf Electrics Ltd | Electrician | 15 Pillinge Rd | Bedford | Mon–Fri 08:00–18:00 |
| Kra Electrical & Energy Solutions | Electrician | 90 Shirley High St | Southampton | Daily Open 24 hours |
| Krown Construction | Property maintenance | Acorn House, 381 Midsummer Blvd | Milton Keynes | Daily 08:00–20:00 |
| Landlord Safety Certificate | Certification agency | Unit 9, Maybank Industrial Estate, 109 Maybank Rd | London | Fri–Sat 09:00–18:00 |
| Laressi Mechanical and Electrical | Air conditioning contractor | Suite 4, Joseph King House, Norfolk, Southwell Rd | Norwich | Mon–Fri 08:00–17:00 |
| Leaping Hare Renewables - ELECTRIC I HEATING I COOLING | Energy equipment and solutions | Riverside Rd | Norwich | Mon–Thu 09:00–17:00 |
| LED Switchover | Interior designer | Unit G10 D, Hartford House, Weston St | Bolton | Mon–Fri 08:00–18:30 |
| Lime Electrical | Electrician | 506 Hayley Ct | Milton Keynes | Mon–Fri 07:30–17:00 |
| London City Fire (UK) Limited | Fire protection equipment supplier | Unit 2, Michael Manley Industrial Estate, Unit 2 Clyston St | London | Mon–Thu 08:00–17:00 |
| Luke Fielding Electrical Services Ltd | Electrical installation service | Silver Fields, Whitehall Rd | Bradford | Mon–Thu 07:00–18:00 |
| Lux Electrical Installations Ltd | Solar energy company | St Neots Rd | Cambridge | Mon Open 24 hours |
| M D Govier Electrical Engineering Ltd | Electrical engineer | 21 Beaufort Ct, Roebuck Way | Milton Keynes | Mon Open 24 hours |
| MAE (UK) Ltd. | Electrical engineer | 1301 Stratford Rd | Birmingham | Mon–Fri 08:00–18:00 |
| Mamoss Gas, Heating And Electrical | Central heating service | Unit C, 279 Bethnal Grn Rd | London | Daily Open 24 hours |
| Marigold Engineers Ltd | Catering supplier | Unit 19 Moorside | Colchester | Mon–Fri 08:00–17:00 |
| Mason Electrical Services Ltd | Electrician | Doncaster Sheffield Airport, Meteor House, First Ave | Doncaster | Mon–Fri 09:00–17:00 |
| Matt Gee Domestic Appliance Repairs | Appliance repair service | 1 Carver Dr | Sheffield | Daily 08:00–22:00 |
| Maybury Energy Services Ltd | Solar energy system service | Paradise Works, Ind Estate, Unit 5 Eden St | Coventry | Mon–Fri 09:00–17:00 |
| Mogford Prescott Ltd | Property maintenance | 12 High St | Bristol | Mon–Wed 08:00–16:00 |
| Mondial Lighting Company Limited | Lighting contractor | Mayesbrook House, Lawnswood Business Park | Leeds | Thu–Fri 09:00–17:30 |
| MRM Solutions | Cable provider | 1 Maiden St | Newcastle upon Tyne | Mon–Thu 08:30–16:30 |
| MSK Electrical Contractors | Electrician | Bradford BD8 9JW | Bradford | Daily Open 24 hours |
| Neil McGregor Property Services Ltd | Building firm | Unit 10, Brunswick Park Industrial Estate | Newcastle upon Tyne | Mon–Fri 08:00–16:30 |
| Nene Data Network Solutions | Telecommunications contractor | 27, Charter Gate, Quarry Park Cl | Northampton | Mon–Fri 09:00–17:00 |
| Netserve Cabling | Telecommunications contractor | Friars House | Coventry | Mon–Fri 08:00–18:00 |
| Neutral Electrical Solutions | Electrician | 30 Norfolk Rd | Preston | Mon–Fri Open 24 hours |
| Newton - Electrical, Plumbing, HVAC | Electrician | Francis House, Coventry Rd | Leicester | Mon–Tue 08:00–18:00 |
| Norfolk And Suffolk Services Ltd | Gas engineer | 28 Granary Cl | Norwich | Daily Open 24 hours |
| Norfolk Trusted Trader | Council | County Hall, Martineau Ln | Norwich | Mon–Fri 09:00–17:00 |
| Northedge Installations Ltd | Electrical installation service | Robin Mills Suite 1+2, Leeds Rd | Bradford | Mon–Fri 09:00–17:00 |