Security systems installers to acquire in London

Name: Security systems installers to acquire in London
Creator: Firmbase
License: https://firmbase.co/terms

Updated 9 November 2026

Looking to acquire a security systems installer in London? Firmbase ranks 157 security systems installers 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 8 staff and has been in business for 16 years; 1 firm is owned by a group that has acquired several firms in this sector. Looking beyond London? Explore the full UK list of security systems installers.

157

Firms

UK 1,024

29%

Every director 55+

UK 24%

38%

Held 75%+ by one person

UK 29%

Median years in business

UK 15

Median headcount

UK 9

£250k to £500k

Median turnover band

UK £500k to £1m · includes our estimates

1 firm owned by 1 group that has bought several firms in this sector. That is 1% of this list, against 1% across the UK. The group is Ranger Fire & Security. To have a group's name removed, email dave@firmbase.co.

The first 25 firms, in Approach Score order

Rank	Firm	Approach Score	The facts behind the score
1	Access & Lock Essex	Approach Score 84/100	1 director aged 65-69, 1 aged 55-59, 1 aged 50-54 · longest in post since 2002 Independent More about this firm 18 staff · turnover est. £1.2m Net assets £946k (Mar 2026) Director resigned Oct 2026 · PSC register changed Oct 2025 Company no. 04584923 · Companies House accesslock.co.uk
2	BlakeGlow Chingford, London	Approach Score 82/100	2 directors aged 70 or over · longest in post since 2016 2 individuals hold 50%+ · independent More about this firm 8 staff · turnover est. £475k Net assets £191k (Aug 2025) Company no. 10343430 · Companies House blakeglow.com
3	1ST Metropolitan Locksmiths London	Approach Score 82/100	Director aged 70 or over · in post since 1991 1 individual holds 75%+ · independent More about this firm 5 staff · turnover est. £313k Net assets £275k (Apr 2025) Company no. 02602617 · Companies House metrolocks.co.uk
4	Safeplan Essex	Approach Score 80/100	Director aged 65-69 · in post since 2023 1 individual holds 75%+ · independent More about this firm 33 staff · turnover est. £503k Net assets £42k (Jan 2026) Company no. 03309954 · Companies House safeplanltd.com
5	Aeon Ilford, Essex	Approach Score 79/100	We hold older figures than Companies House 1 director aged 70 or over, 1 aged 65-69 · longest in post since 1999 2 individuals hold 75%+ · independent More about this firm 10 staff · turnover est. £561k Net assets £128k · newer accounts made up to Jun 2026 PSC register changed Jun 2025 Company no. 03793381 · Companies House aeonsystems.co.uk/wp
6	Barry Bros Security London	Approach Score 77/100	Longest in post since 2018 2 individuals hold 50%+ · independent More about this firm 27 staff · turnover est. £298k Net assets £7.2m (Mar 2025) Director resigned Mar 2026 Company no. 11452204 · Companies House barrybros.com
7	Technica Systems Wembley, Middlesex	Approach Score 77/100	Director aged 70 or over · in post since 1994 1 individual holds 75%+ · independent More about this firm 10 staff · turnover est. £456k Net assets £132k (Mar 2025) Company no. 01805522 · Companies House technica.co.uk
8	Trip EYE London	Approach Score 77/100	1 director aged 55-59, 1 aged 50-54 · longest in post since 2012 1 individual holds 75%+ · independent More about this firm 20 staff · turnover est. £366k Net assets £1.5m (Jul 2025) Company no. 07962624 · Companies House
9	Eagle Security Solutions Greenwich, London	Approach Score 77/100	Director aged 65-69 · in post since 2002 1 individual holds 75%+ · independent More about this firm 11 staff · turnover est. £315k Net assets £36k (Sep 2024) Company no. 04395406 · Companies House
10	Orbex Solutions London	Approach Score 77/100	We hold older figures than Companies House 1 director aged 65-69, 1 aged 55-59 · longest in post since 2001 2 individuals hold 50%+ · independent More about this firm 6 staff · turnover est. £448k Net assets £190 (Mar 2024) · newer accounts made up to Mar 2026 Director resigned Nov 2025 Company no. 04219670 · Companies House orbex.co.uk
11	Customised Security London	Approach Score 76/100	Director aged 55-59 · in post since 2000 1 individual holds 75%+ · independent More about this firm 5 staff · turnover est. £207k Net assets £153k (Mar 2025) Company no. 03977859 · Companies House customisedsecurity.co.uk
12	Selectamark Security Systems Locksbottom, Kent A director sits on 4 or more companies	Approach Score 76/100	1 director aged 70 or over, 1 aged 55-59, 1 aged 50-54 · longest in post since 2003 Independent More about this firm 20 staff · turnover £4.4m Net assets £3.6m (Oct 2025) Director resigned Dec 2025 · PSC register changed Jan 2025 Company no. 01024280 · Companies House selectamark.co.uk
13	AFN Technology Wallington, Surrey	Approach Score 75/100	Director aged 65-69 · in post since 2001 Independent More about this firm 5 staff · turnover est. £215k Net assets £20k (Mar 2025) Director resigned Nov 2025 Company no. 03880127 · Companies House tigrisnet.com
14	Third EYE Installation Systems London	Approach Score 75/100	1 director aged 65-69, 1 aged 60-64, 1 aged under 45 · longest in post since 2006 2 individuals hold 50%+ · independent More about this firm 11 staff · turnover est. £574k Net assets £37k (Jun 2025) Director resigned Dec 2024 Company no. 05725984 · Companies House thirdeyeis.co.uk
15	Access Locks & Security Carshalton, Surrey	Approach Score 74/100	We hold older figures than Companies House Director aged 60-64 · in post since 2005 1 individual holds 75%+ · independent More about this firm 6 staff · turnover est. £287k Net assets £14k (Aug 2021) · newer accounts made up to Aug 2025 Company no. 05461035 · Companies House accesslocks.co.uk
16	Innertec London	Approach Score 74/100	Director aged 70 or over · in post since 2015 Independent More about this firm 9 staff · turnover est. £760k Net assets £191k (Mar 2025) Company no. 09861667 · Companies House innertec.co.uk
17	SA Fire and Security London	Approach Score 73/100	We hold older figures than Companies House 1 director aged 65-69, 1 aged 60-64 · longest in post since 1996 2 individuals hold 75%+ · independent More about this firm 17 staff · turnover est. £1.8m Net assets £298k · newer accounts made up to Mar 2025 Company no. 02916866 · Companies House safss.co.uk
18	Classic UK Barking, Essex	Approach Score 73/100	Director aged 60-64 · in post since 1999 Independent More about this firm 6 staff · turnover £619k Net assets £221k (Mar 2025) Company no. 03736378 · Companies House classicuk.com
19	Churchill Security Systems Bromley, London	Approach Score 73/100	2 directors aged 70 or over, 1 aged 50-54 · longest in post since 1996 Independent More about this firm 5 staff · turnover est. £342k Net assets £190k (Dec 2025) Company no. 03211800 · Companies House churchillfireandsecurity.co.uk
20	Securebase London	Approach Score 73/100	2 directors aged 70 or over · longest in post since 2020 2 individuals hold 50%+ · independent More about this firm 8 staff · turnover est. £1.2m Net assets £903k (Jun 2025) Company no. 02211667 · Companies House securebase.co.uk
21	Visual Electronic Services Pinner	Approach Score 73/100	We hold older figures than Companies House Director aged 60-64 · in post since 2010 1 individual holds 75%+ · independent More about this firm 9 staff · turnover est. £746k Net assets £136k (Sep 2023) · newer accounts made up to Sep 2025 Company no. 07361690 · Companies House ves.uk.com
22	Advance Security Alarms Chislehurst	Approach Score 72/100	Director aged 65-69 · in post since 2018 1 individual holds 75%+ · held via a trust or firm · independent More about this firm 7 staff · turnover est. £264k Net assets £36k (Oct 2025) Company no. 08237692 · Companies House advance-alarms.co.uk
23	LJB Security Ilford, Essex	Approach Score 72/100	Director aged 50-54 · in post since 2001 1 individual holds 75%+ · independent More about this firm 19 staff · turnover est. £3.9m Net assets £6.1m (May 2025) Company no. 04201163 · Companies House ljbsecurity.co.uk
24	1ST A.C.E. Security Bromley A director sits on 4 or more companies	Approach Score 71/100	2 directors aged 70 or over, 1 aged 55-59 · longest in post since 2002 Independent More about this firm 55 staff · turnover est. £3.2m Net assets £481k (Nov 2024) Company no. 04464367 · Companies House 1stacesecurity.co.uk
25	Locktec Security Ilford, Essex	Approach Score 71/100	2 directors aged 60-64 · longest in post since 2014 2 individuals hold 50%+ · independent More about this firm 6 staff · turnover est. £353k Net assets £189k (Apr 2025) Charge satisfied Jun 2026 Company no. 09000728 · Companies House locktecsecurity.co.uk

132 more firms are in the list, in Approach Score order.

You're seeing the first 25. Buy all 157 for £799 + VAT, with the facts behind each score, director names, shareholders and financials.

Buy the list of all 157 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.

See every filter on the UK list

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.

Read how the Approach Score works

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. The Security Industry Authority does not license alarm installation. Verify any claimed voluntary certification and its scope in the certifying body's directory, such as NSI's or SSAIB's; check SIA licences separately for guarding or key holding.

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.

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The standard Firmbase list

Access Control Companies in the UK