Security guarding companies to acquire in Northern Ireland
Updated 9 November 2026
Looking to acquire a security guarding company in Northern Ireland? Firmbase ranks 14 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 19 staff and has been in business for 8 years. Looking beyond Northern Ireland? Explore the full UK list of security guarding companies.
14
Firms
UK 1,367
21%
Every director 55+
UK 19%
29%
Held 75%+ by one person
UK 58%
8
Median years in business
UK 8
19
Median headcount
UK 14
£500k to £1m
Median turnover band
UK £250k to £500k · includes our estimates
All 14 firms, in Approach Score order
| Rank | Firm | Approach Score | The facts behind the score |
|---|---|---|---|
| 1 | Pulse Security Londonderry | Approach Score 72/100 |
More about this firm
Company no. NI638479 · Companies House |
| 2 | Island Events Ireland Belfast A director sits on 4 or more companies | Approach Score 65/100 |
More about this firm
Company no. NI625620 · Companies House |
| 3 | NW Security NI Limavady | Approach Score 55/100 |
More about this firm
Company no. NI643007 · Companies House |
| 4 | Safe Security (N.I.) Belfast, CO. Antrim. A director sits on 4 or more companies | Approach Score 53/100 | We hold older figures than Companies House
More about this firm
Company no. NI662470 · Companies House |
| 5 | BCM Security Limavady | Approach Score 49/100 | We hold older figures than Companies House
More about this firm
Company no. NI634619 · Companies House |
| 6 | MSD Services Londonderry | Approach Score 48/100 |
More about this firm
Company no. NI711130 · Companies House |
| 7 | Safe Security (belfast) Belfast A director sits on 4 or more companies | Approach Score 46/100 |
More about this firm
Company no. NI721020 · Companies House |
| 8 | Elite Security TM Londonderry | Approach Score 45/100 |
More about this firm
Company no. NI682377 · Companies House |
| 9 | Sentinel Risk and Management (NI) Belfast | Approach Score 45/100 |
More about this firm
Company no. NI664111 · Companies House |
| 10 | RFC Security Belfast | Approach Score 41/100 |
More about this firm
Company no. NI713826 · Companies House |
| 11 | ZEE Security Lisburn | Approach Score 40/100 |
More about this firm
Company no. NI725643 · Companies House |
| 12 | Insec N.ireland Belfast | Approach Score 36/100 |
More about this firm
Company no. NI603007 · Companies House |
| 13 | Legacy Management Belfast A director sits on 4 or more companies | Approach Score 31/100 |
More about this firm
Company no. NI650025 · Companies House |
| 14 | Club Sec Downpatrick | Approach Score 28/100 | We hold older figures than Companies House
More about this firm
Company no. NI046367 · Companies House |
Buy the list of all 14 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 Northern Ireland.
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
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The standard Firmbase list
Buy the list of all 14 firms, with director names, ages and shareholders
Each row comes with the facts behind its score, financials with dates and contact details.