Security systems installers to acquire in Leicester

Updated 9 November 2026

Looking to acquire a security systems installer in Leicester? Firmbase ranks 17 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 9 staff and has been in business for 17 years. Looking beyond Leicester? Explore the full East Midlands list of security systems installers.

17

Firms

UK 1,014

18%

Every director 55+

UK 24%

24%

Held 75%+ by one person

UK 27%

17

Median years in business

UK 15

9

Median headcount

UK 9

£500k to £1m

Median turnover band

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

All 17 firms, in Approach Score order

1

Locksafe Security Services

Leicester, Leicestershire

Approach Score

78/100
  • Director aged 60-64 · in post since 2011
  • 1 individual holds 75%+ · independent
More about this firm
  • 5 staff · turnover est. £211k
  • Net assets £18k (Mar 2025)

Company no. 07575605 · Companies House

2

RT Automation

Quorn, Leicestershire

Approach Score

76/100
  • 1 director aged 65-69, 2 aged 60-64 · longest in post since 2017
  • 1 individual holds 75%+ · independent
More about this firm
  • 7 staff · turnover est. £2.5m
  • Net assets £2.1m (Jan 2026)

Company no. 10689696 · Companies House

rtmidlands.co.uk

3

Guardian Protection

Leicester

A director sits on 4 or more companies

Approach Score

71/100
  • Director aged 55-59 · in post since 2009
  • 1 individual holds 75%+ · independent
More about this firm
  • 34 staff · turnover est. £1.6m
  • Net assets £384k (Jun 2025)
4

Clear Sound Security

Whetstone, Leicester

Approach Score

67/100
  • 1 director aged 60-64, 1 aged 50-54 · longest in post since 2003
  • Independent
More about this firm
  • 17 staff · turnover est. £1.1m
  • Net assets £229k (Jun 2025)
  • PSC register changed Sep 2026
5

Premier Fire Security

Leicester, Hampshire

A director sits on 4 or more companies

Approach Score

62/100
  • 1 director aged 55-59, 1 aged 50-54, 1 aged 45-49 · longest in post since 2025
  • Corporate owner
More about this firm
  • 33 staff · turnover est. £1.4m
  • Net assets £612k (Mar 2025)
  • Director resigned Jul 2026 · charge satisfied Nov 2025 · PSC register changed Mar 2025
6

1st 4 Fire & Security

Leicester, Leicestershire

Approach Score

59/100
  • 1 director aged 55-59, 1 aged under 45 · longest in post since 2017
  • 2 individuals hold 50%+ · independent
More about this firm
  • 6 staff · turnover est. £228k
  • Net assets £142k (Jan 2026)

Company no. 10881628 · Companies House

1st4fs.co.uk

7

Traffsec

Leicester

Approach Score

51/100
  • Director aged under 45 · in post since 2022
  • 1 individual holds 75%+ · independent
More about this firm
  • 6 staff · turnover £699k
  • Net assets £142k (Feb 2026)

Company no. 13939591 · Companies House

traffsec.com

8

Fireserv UK

Leicester, Leicestershire

A director sits on 4 or more companies

Approach Score

50/100
  • 1 director aged 60-64, 2 aged under 45 · longest in post since 2013
  • Corporate owner
More about this firm
  • 26 staff · turnover est. £3.3m
  • Net assets £683k (Mar 2025)
  • Director resigned Feb 2025 · PSC register changed Feb 2025

Company no. 08427170 · Companies House

fire-serv.com

9

Patrol Alarm Systems

Leicester

A director sits on 4 or more companies

Approach Score

48/100
  • Director aged under 45 · in post since 2026
  • Corporate owner
More about this firm
  • 10 staff · turnover est. £532k
  • Net assets £98k (Mar 2026)
  • Director resigned Oct 2026 · charge satisfied Jul 2025 · PSC register changed Jul 2025
10

Brunel Security

Leicester, North Somerset

A director sits on 4 or more companies

Approach Score

48/100

We hold older figures than Companies House

  • 1 director aged 55-59, 1 aged 50-54, 1 aged 45-49, 2 aged under 45 · longest in post since 2017
  • Corporate owner
More about this firm
  • 32 staff · turnover est. £2.8m
  • Net assets £148k (Mar 2022) · newer accounts made up to Dec 2024
  • Director resigned Jul 2026 · charge satisfied Oct 2025

Company no. 08203597 · Companies House

brunelsecurity.co.uk

11

Rainbow Security Systems

Leicester, Northamptonshire

A director sits on 4 or more companies

Approach Score

33/100

We hold older figures than Companies House

  • Director aged under 45 · in post since 2025
  • Corporate owner
More about this firm
  • 5 staff · turnover est. £46k
  • Net assets £30k · newer accounts made up to Apr 2025
  • Director resigned Jan 2025 · PSC register changed Jan 2025
12

Blaby Electrical

Leicester

Approach Score

32/100

We hold older figures than Companies House

  • 2 directors aged under 45 · longest in post since 2016
  • Corporate owner
More about this firm
  • 15 staff · turnover est. £1.2m
  • Net assets £460k · newer accounts made up to Jul 2025

Company no. 02616185 · Companies House

blabyelectrical.co.uk

13

Elite Security Services

Leicester, Derbyshire

A director sits on 4 or more companies

Approach Score

30/100

We hold older figures than Companies House

  • Director aged under 45 · in post since 2025
  • Corporate owner
More about this firm
  • 5 staff · turnover est. £112k
  • Net assets £47k · newer accounts made up to Jun 2025
  • Director resigned Aug 2025 · PSC register changed Aug 2025
14

Skybliss

Leicester

Approach Score

29/100
  • Director aged under 45 · in post since 2026
  • Held via a trust or firm · independent
More about this firm
  • 6 staff · turnover est. £44k
  • Net assets -£460 (Sep 2025)
  • Director resigned Feb 2026 · PSC register changed Feb 2026

Company no. 15981303 · Companies House

15

BAR Alarm Security Systems

Leicester

A director sits on 4 or more companies

Approach Score

29/100

We hold older figures than Companies House

  • Director aged under 45 · in post since 2024
  • Corporate owner
More about this firm
  • 5 staff · turnover est. £295k
  • Net assets £31k (Mar 2022) · newer accounts made up to Apr 2025
16

Wilson Alarm Systems

Leicester, Leicestershire

A director sits on 4 or more companies

Approach Score

29/100

We hold older figures than Companies House

  • Director aged under 45 · in post since 2022
  • Corporate owner
More about this firm
  • 15 staff · turnover est. £663k
  • Net assets £40k (Apr 2022) · newer accounts made up to Apr 2025

Company no. 01642578 · Companies House

wilsonalarms.co.uk

17

Integra Technology Solutions

Leicester, Leicestershire

A director sits on 4 or more companies

Approach Score

25/100

We hold older figures than Companies House

  • Director aged under 45 · in post since 2023
  • Held via a trust or firm · corporate owner
More about this firm
  • 9 staff · turnover est. £337k
  • Net assets -£176k (Apr 2023) · newer accounts made up to Apr 2025

Company no. 06496574 · Companies House

itsltd.co

Buy the list of all 17 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 Leicester.
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.

You can find the company number on Companies House.

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The standard Firmbase list

Buy the list of all 17 firms, with director names, ages and shareholders

Each row comes with the facts behind its score, financials with dates and contact details.