By city
London 15Birmingham 7Leeds 6Preston 5Derby 5Newcastle upon Tyne 5Stoke-on-Trent 4Sheffield 4Coventry 4Doncaster 4Manchester 4Bristol 4Brighton 3Huddersfield 3Leicester 3Bradford 3Nottingham 3Bedford 3Norwich 3Plymouth 3Swansea 3Liverpool 3Stockport 3Northampton 3
| Name | Category | Address | City | Opening times |
|---|---|---|---|---|
| ECS Solutions | Security service | Bantam Cl | Leeds | Mon 07:30–17:30 |
| Fortress | Security service | 195 Marsh Wall | London | Daily Open 24 hours |
| Frontline Security 24/7 Ltd | Security service | Clavering Pl | Newcastle upon Tyne | Daily Open 24 hours |
| Hawkshaw Agency | Security service | Chalice House, Bromley Rd | Colchester | Fri 09:00–17:00 |
| Herongrange Group | Security service | cirrus park, 9 | Northampton | Fri Open 24 hours |
| Hire A Guard UK | Security guard service | Union House, 111 New Union St | Coventry | Sat 12:00–23:00 |
| Indeed Care Security | Security guard service | Unit 8 St Gabriel's Business Park St Gabriel, s Street | Bristol | Fri Open 24 hours |
| Jackson Fire & Security (Cambridge) | Fire protection service | Coldhams Ln | Cambridge | Sat Open 24 hours |
| London Security Services (UK) | Security guard service | Mulberry Place, Pinnell Rd | London | Daily Open 24 hours |
| Millennium Security | Security service | Wilstead Industrial Park, Unit 14 Kenneth Way | Bedford | Fri–Sat 06:00–18:00 |
| Mitie Fire & Security (formerly Marlowe Fire & Security) | Fire protection system supplier | 1 Diamond Ct | Newcastle upon Tyne | Sat Open 24 hours |
| MMV Security & Training | Security service | 3 Friars Walk | Reading | Mon–Sat 08:30–18:30 |
| National Private Investigators | Private investigator | 71-75 Shelton St | London | Daily Open 24 hours |
| Pagoda Security | Security service | Office, King & Queen, 13 - 16 Marlborough Pl | Brighton | Daily Open 24 hours |
| Peregrine Risk Management Ltd | Security service | Yard, Suite 27 Office 100, BLOCK Plymouth Melville, Royal William | Plymouth | Sun Open 24 hours |
| Profile Security Services Ltd | Security service | Ground Floor 15, Harvard Ct, Winwick Quay | Warrington | Mon–Fri 09:00–17:00 |
| ProSec UK | Security service | 7 S Parade | Doncaster | Mon Open 24 hours |
| RCS Technologies Limited | Security service | Eastgate house, 23 Humberstone Rd | Leicester | Mon 09:00–17:30 |
| RW Security Solutions & Investigations | Security service | Blake House, 18 Blake St | York | Sat Open 24 hours |
| Safe Shores Monitoring Ltd | Security service | SPACES, 1 W Regent St | Glasgow | Sat Open 24 hours |
| Safeside Security | Security service | 68 Gas St | Bolton | Fri Open 24 hours |
| Samlexsite Security Services Ltd | Security service | 124 N 10th St | Milton Keynes | Mon–Thu 09:00–20:30 |
| Secure Security Guards Services LTD | Security service | Jhumat House, Regus, 160 London Rd | London | Mon–Fri 09:00–17:00 |
| Security Company in Doncaster | Security service | SPS Security Ltd, Cleveland Street | Doncaster | Mon 09:00–18:00 |
| Security Services | Security service | 2 Berry St | Stoke-on-Trent | Mon–Fri 08:30–17:00 |
| SIASS - Specialist Intelligence & Security Services | Private investigator | Office 10, 58 Low Friar St | Newcastle upon Tyne | Mon 09:00–17:00 |
| Sovereign Alarms Ltd | Security service | 142 Saltdean Vale | Brighton | Daily Open 24 hours |
| SSGC Ltd | Security service | Unit 19, Ergo Business Park, Kelvin Rd | Swindon | Daily Open 24 hours |
| Surety Keyholding Limited | Security service | The Coach House, Wicken St | Stockport | Sun Open 24 hours |
| The SES Group | Security service | Ground Floor Offices, St James House, Priestgate | Peterborough | Fri 09:00–17:00 |