Security guarding companies to acquire in London
Updated 9 November 2026
Looking to acquire a security guarding company in London? Firmbase ranks 442 security guarding companies using public company information to help buyers prioritise firms for research and potential outreach. The Approach Score ranks firms using public signals including director age and tenure, ownership, business scale, financial strength and recent changes. These firms are not listed for sale, and the ranking does not indicate that an owner is considering a sale.
The median firm has 11 staff and has been in business for 8 years. Looking beyond London? Explore the full UK list of security guarding companies.
442
Firms
UK 1,388
15%
Every director 55+
UK 19%
68%
Held 75%+ by one person
UK 60%
8
Median years in business
UK 8
11
Median headcount
UK 14
£250k to £500k
Median turnover band
UK £250k to £500k · includes our estimates
The first 25 firms, in Approach Score order
| Rank | Firm | Approach Score | The facts behind the score |
|---|---|---|---|
| 1 | Essl London | Approach Score 87/100 |
More about this firm
Company no. 03841012 · Companies House |
| 2 | Tragopan Security Heston A director sits on 4 or more companies | Approach Score 84/100 |
More about this firm
Company no. 08296059 · Companies House |
| 3 | Cranfield Jardine London | Approach Score 82/100 |
More about this firm
Company no. 09877232 · Companies House |
| 4 | Photech Keyholding London, Greater London | Approach Score 80/100 |
More about this firm
Company no. 06585980 · Companies House |
| 5 | Pace Security London | Approach Score 80/100 |
More about this firm
Company no. 04164903 · Companies House |
| 6 | ML Securities Romford, Essex | Approach Score 80/100 |
More about this firm
Company no. 07124975 · Companies House |
| 7 | Phoenix Protection Services Dagenham A director sits on 4 or more companies | Approach Score 78/100 |
More about this firm
Company no. 10088382 · Companies House |
| 8 | Access Controlled Security London | Approach Score 78/100 |
More about this firm
Company no. 03141811 · Companies House |
| 9 | Nadus Services London | Approach Score 78/100 |
More about this firm
Company no. 14055508 · Companies House |
| 10 | Lexus Security Management London | Approach Score 78/100 |
More about this firm
Company no. 03922690 · Companies House |
| 11 | CRN Contract Services London | Approach Score 77/100 | We hold older figures than Companies House
More about this firm
Company no. 03312109 · Companies House |
| 12 | Yoff Security Pinner, Middlesex | Approach Score 76/100 |
More about this firm
Company no. 10980567 · Companies House |
| 13 | Option Business Services London | Approach Score 76/100 |
More about this firm
Company no. 08241618 · Companies House |
| 14 | 1st Ace Security Bromley A director sits on 4 or more companies | Approach Score 75/100 |
More about this firm
Company no. 07333871 · Companies House |
| 15 | Metropolitan Security Services London | Approach Score 74/100 |
More about this firm
Company no. 12389919 · Companies House |
| 16 | DSS London | Approach Score 74/100 |
More about this firm
Company no. 12674621 · Companies House |
| 17 | Elizabethan Security London | Approach Score 73/100 |
More about this firm
Company no. 01903154 · Companies House |
| 18 | Guild Security Services London | Approach Score 73/100 |
More about this firm
Company no. 10268894 · Companies House |
| 19 | C. M. Brothers London | Approach Score 73/100 |
More about this firm
Company no. 09190439 · Companies House |
| 20 | Broadway Services Barking, Essex | Approach Score 72/100 |
More about this firm
Company no. 05496005 · Companies House |
| 21 | NEW Dawn Security & Training Edgware | Approach Score 72/100 |
More about this firm
Company no. 06973759 · Companies House |
| 22 | Patriot Integral Security & Consultant Services London | Approach Score 71/100 |
More about this firm
Company no. 11113669 · Companies House |
| 23 | Arthur Security Essex | Approach Score 71/100 |
More about this firm
Company no. 05694453 · Companies House |
| 24 | Lights Security Services 1 London | Approach Score 71/100 |
More about this firm
Company no. 12254841 · Companies House |
| 25 | Raark London A director sits on 4 or more companies | Approach Score 71/100 |
More about this firm
Company no. 12584666 · Companies House |
417 more firms are in the list, in Approach Score order.
You're seeing the first 25. Buy all 442 for £799 + VAT, with the facts behind each score, director names, shareholders and financials.
Buy the list of all 442 firms, with director names, ages and shareholders
Each row comes with the facts behind its score, financials with dates and contact details.
What's in the file
One row per firm, in Approach Score order, as Excel + CSV.
It holds the facts behind each score, points for each part of the score, financials with dates, publicly available contact details, where identified, director names and named shareholders.
Some people with significant control appear as Other individual, with no further detail. Director email lookups are not included.
How this list is filtered
- 5 or more staff, from filed headcount or our estimate where none is filed.
- Registered office in London.
How this list is built
The Approach Score ranks firms mainly on public Companies House information about owner tenure and age, ownership, size, financial strength and recent register changes.
Firms with higher scores appear first in each list.
Use the ranking to order research, then check each business directly.
What it does not mean
No firm here is for sale, and the score says nothing about any owner's plans.
At least 95% of the firms where we hold directors had them checked in or after November 2026.
What we do not cover
Regulatory information is not included in this list. Buyers should check the relevant register as part of their due diligence. Check individual licences on the Security Industry Authority's register of licence holders. Company approval is voluntary and can be checked separately on its Register of Approved Contractors.
Why age bands but no people's names
Age bands come from the month and year of birth on Companies House. This page shows no exact ages and no people's names. Both come with the purchased list. The band edges from 45 to 65 are the ages where the score changes. A row shows no age bands when a director's surname is in the firm's name, its group's name or its website. Those directors' ages still count towards the score.
Is this your firm?
You can ask us to take it off every acquisition page, and out of every list we sell after that. Give us your name and work email, and we send you a link to confirm. If your email address is on the firm's own website domain, the firm comes off once you confirm. If it is not, a person reviews your request first. A list already sold stays with its buyer.
To have personal data erased, see our privacy policy.
Other areas
Related sectors
The standard Firmbase list
Buy the list of all 442 firms, with director names, ages and shareholders
Each row comes with the facts behind its score, financials with dates and contact details.