Security guarding companies to acquire in Nottingham

Updated 13 November 2026

Looking to acquire a security guarding company in Nottingham? Firmbase ranks 13 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 45 staff and has been in business for 10 years. Looking beyond Nottingham? Explore the full East Midlands list of security guarding companies.

13

Firms

UK 1,388

23%

Every director 55+

UK 19%

77%

Held 75%+ by one person

UK 60%

10

Median years in business

UK 8

45

Median headcount

UK 14

£500k to £1m

Median turnover band

UK £250k to £500k · includes our estimates

All 13 firms, in Approach Score order

1

RD Security Services

Nottingham, Nottinghamshire

Approach Score

81/100
  • Director aged 60-64 · in post since 2023
  • 1 individual holds 75%+ · independent
More about this firm
  • 26 staff · turnover est. £412k
  • Net assets £423 (Apr 2026)

Company no. 14808557 · Companies House

2

Nottingham Security

Nottingham

Approach Score

79/100

We hold older figures than Companies House

  • 2 directors aged 70 or over · longest in post since 1994
  • 2 individuals hold 50%+ · independent
More about this firm
  • 10 staff · turnover est. £275k
  • Net assets £1k (May 2024) · newer accounts made up to May 2026
  • Director resigned Aug 2026 · PSC register changed Aug 2026
3

Cmli Security

Sutton-in-Ashfield

Approach Score

74/100
  • Director aged 55-59 · in post since 2017
  • 1 individual holds 75%+ · independent
More about this firm
  • 10 staff · turnover est. £259k
  • Net assets £3k (May 2025)

Company no. 10788040 · Companies House

cmli.org.uk

4

Securityandstewardsuk

Nottingham, Nottinghamshire

Approach Score

72/100
  • 1 director aged 60-64, 1 aged under 45 · longest in post since 2016
  • 1 individual holds 75%+ · independent
More about this firm
  • 129 staff · turnover est. £1.4m
  • Net assets £56k (Feb 2025)
5

Magpie Security

Nottingham, Nottinghamshire

Approach Score

69/100

We hold older figures than Companies House

  • 1 director aged 65-69, 1 aged under 45 · longest in post since 2002
  • 1 individual holds 75%+ · independent
More about this firm
  • 61 staff · turnover est. £1.9m
  • Net assets £1m · newer accounts made up to Oct 2025
  • PSC register changed Apr 2026

Company no. 04566564 · Companies House

magpie-security.co.uk

6

D.&.D Security (midlands)

Ilkeston

A director sits on 4 or more companies

Approach Score

66/100

We hold older figures than Companies House

  • 1 director aged 55-59, 1 aged 50-54 · longest in post since 2008
  • 1 individual holds 75%+ · held via a trust or firm · independent
More about this firm
  • 45 staff · turnover est. £1.9m
  • Net assets £560k (Oct 2021) · newer accounts made up to Oct 2025

Company no. 06722314 · Companies House

dd-security.co.uk

7

ASGS Security

Nottingham, Nottinghamshire

Approach Score

61/100
  • 1 director aged 55-59, 1 aged under 45 · longest in post since 2016
  • 2 individuals hold 50%+ · independent
More about this firm
  • 14 staff · turnover est. £476k
  • Net assets £1k (Feb 2025)

Company no. 07519632 · Companies House

asgssecurity.com

8

Trident Security Solutions

Nottingham

A director sits on 4 or more companies

Approach Score

61/100
  • 1 director aged 55-59, 1 aged 45-49, 1 aged under 45 · longest in post since 2013
  • 1 individual holds 75%+ · independent
More about this firm
  • 67 staff · turnover est. £932k
  • Net assets £160k (Jul 2025)

Company no. 08632309 · Companies House

tridentsec.co.uk

9

Cobac Security

Nottingham

Approach Score

59/100
  • 2 directors aged under 45 · longest in post since 2016
  • 1 individual holds 75%+ · independent
More about this firm
  • 63 staff · turnover est. £1.1m
  • Net assets £128k (Sep 2025)

Company no. 10439375 · Companies House

cobacsecurity.co.uk

10

Turbo K9 Security

Nottingham

Approach Score

57/100
  • Director aged under 45 · in post since 2019
  • 1 individual holds 75%+ · independent
More about this firm
  • 14 staff · turnover est. £222k
  • Net assets £82k (Jul 2026)

Company no. 12098889 · Companies House

11

Octavian Facilities Management

Nottingham

A director sits on 4 or more companies

Approach Score

46/100
  • 2 directors aged 55-59, 1 aged under 45 · longest in post since 2023
  • 1 individual holds 75%+ · independent
More about this firm
  • 240 staff · turnover est. £7m
  • Net assets £1.3m (Jun 2025)
  • Director resigned Sep 2026 · charge satisfied Mar 2025 · PSC register changed Sep 2026

Company no. 10256376 · Companies House

octavianfm.co.uk

12

Connected Security Services

Nottingham

Approach Score

45/100
  • 1 director aged 45-49, 1 aged under 45 · longest in post since 2018
  • 1 individual holds 75%+ · independent
More about this firm
  • 10 staff · turnover est. £44k
  • Net assets £150k (Jun 2025)

Company no. 11430928 · Companies House

13

Foremost Security

Nottingham

Approach Score

37/100
  • 1 director aged 45-49, 1 aged under 45 · longest in post since 2017
  • Corporate owner
More about this firm
  • 81 staff · turnover est. £3.3m
  • Net assets £617k (Jul 2025)
  • Charge satisfied Sep 2025

Buy the list of all 13 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 Nottingham.
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. 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.

You can find the company number on Companies House.

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The standard Firmbase list

Buy the list of all 13 firms, with director names, ages and shareholders

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