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Company

Sigma Security Devices Limited

Sigma Security Devices Limited is an active UK company (number 01449909), incorporated 1979, with 4 current directors including Trevor David Nightingale and Peter Geoffrey Nightingale. Source: Companies House, updated 11th October 2026.

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Official record Companies House · updated 11th October 2026 · Sources · Free, no card or password

Network

The large node is Sigma Security Devices Limited. Red nodes are organisations, white nodes are people. Dashed links are historical or inferred. Click any node to explore.

Who leads it

Previous officers 3

  1. Joseph Alan Potter 1992-1993 Director View profile
  2. Phillip Raymond Henley 2002 Director View profile
  3. David Henry Nightingale 2014 Secretary View profile

Directors and secretaries as filed at Companies House.

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Public contracts won

3 contracts · £205,168 total

From Contracts Finder and Find a Tender, the UK Government's public procurement notices, under the Open Government Licence v3.0. Matched to this organisation by company number, charity number or exact name and postcode; every figure links to its source notice.

  • Provision Of Method Of Entry Equipment Buyer: Durham Constabulary £40,000 2025-11-17 CPV 35000000 Source: Contracts Finder

    Durham Constabulary have awarded a contract via ID 5708985 - Supply of Method of Entry Equipment - Framework Agreement. This is led by Police Service Of Northern Ireland (PSNI) This is to supply method of entry equipment for use by the f…

  • Supply and Delivery of Method of Entry Equipment Buyer: Thames Valley Police £165,168 2025-09-16 CPV 35000000 Source: Contracts Finder

    Notification of contract call-off award via PSNI framework ID 570868 for the supply and delivery of method of entry equipment. No action required. Awarded 4+1, initial 4 year to 2029 with 1 year potential extension to 2030. Additional in…

  • Provision of Method of Entry (MoE) Kit Buyer: The Police, Fire and Crime Commissioner for Northamptonshire Value not published Date not published Source: Find a Tender

    Provision of Method of Entry (MoE) Kit for Northamptonshire Police. This is a call-off contract with an up to value of £40,000 excluding VAT for the initial 3 year term and 12-month optional extension. There is no commitment for the Authori…

About

Incorporated
21/09/1979

Ownership

Owned by (1) iOwned byIndividuals and companies registered as having significant control over this company, from the Companies House PSC (persons with significant control) register. People whose ownership could not be confirmed to one individual are not listed as confirmed owners.

Group

  1. Sigma Security Devices Limited is controlled by Nightingale Holdings (Dover) Limited
    Evidence
    active 75-100% shares, 75-100% voting · notified 2016-04-06 · source: Companies House PSC register
  2. Nightingale Holdings (Dover) Limited is controlled by Claire Louise Benwell
    Evidence
    active 25-50% shares, 25-50% voting · notified 2016-04-06 · source: Companies House PSC register

Ultimately controlled by Claire Louise Benwell.

3 other companies in this group

Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.

Financials

Net assets
£512,101
Total assets
£513,281
Cash
£458,519
Employees
4
Turnover
Not reported (small or micro-entity accounts)

Filed as Full accounts (audit exempt).

Five-year trend

Period endingTurnoverNet assets
2025-12-31Not reported£512,101
2025-12-31Not reported£512,101

Figures from accounts filed at Companies House (iXBRL), period ending 2025-12-31. Where turnover is absent, small and micro-entity accounts are not required to report it, so it is not shown as zero.

Board analysis

Board DNA

How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.

4 directors on the board

15.1y median 12.1y
average tenure
24.3y
longest tenure

Directors past 6 years

First-time vs portfolio directors

Portfolio (4)

0
also govern a charity
0
left in the last 12 months

Where else this board sits iWhere else this board sitsThe charitable fields these directors govern in elsewhere, by Charity Commission classification. Excludes this company and any charity it is the legal face of.

Professional services 4Property 4

The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.

Gaps to watch

  • Several long-serving directors could step down together
  • Narrow spread of sectors across the board

Where to look Suggested search: succession planning for long-tenured seats; directors from a wider range of sectors.

Sources

Official record from Companies House. Governance Register calculates the connections.

Record details
Company number
01449909
Status
Active
Type
Private Limited Company
Edition
Register edition compiled 11th October 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

Contains public sector information licensed under the Open Government Licence v3.0. Report an issue · How we handle data