Filing status
- Accounts due
- 30 September 2027
- Last accounts
- 2 January 2026
- Conf. stmt due
- 17 June 2027
- Last conf. stmt
- 3 June 2026
L3harris Cyber-Cyonyx UK Ltd
- Incorporated
- 3 June 2014 (12 years)
- Previously known as
- L3harris Trenchant Ltd (until 1 July 2026)Linchpin Labs Limited (until 27 January 2022)
- Industry
- Business and domestic software development (62012)
- Owned by
- Accounts type
- Full
- Region
- Greater London
- Address
- 1 Blossom YardFourth FloorLondonE1 6RS
Officers 3 active
Officer details are public data from the Companies House register.
Director · Appointed 1 April 2026
American
Born March 1966 (60)
Director · Appointed 1 April 2026
British
Born May 1980 (46)
Corporate Secretary · Appointed 9 May 2024
Also at Sogea-Satom UK Limited (proposed for strike-off), The Marsden Group Europe Limited, Microsoft Research Limited · more companies
Officer history (10 former)
1 April 2026
1 April 2026
1 April 2026
1 April 2026
21 August 2025
Resigned Williams, Peter as Director
23 October 2024
Appointed Williams, Peter as Director
23 October 2024
Resigned Smith, Courtney Head as Director
9 May 2024
22 November 2023
30 June 2021
30 June 2021
20 September 2019
30 August 2019
31 August 2018
31 August 2018
31 August 2018
31 August 2018
Appointed Smith, Courtney Head as Director
31 August 2018
31 August 2018
31 August 2018
Resigned Prior, Morgan Allan as Director
31 August 2018
Resigned Brooks, Daniel Edward as Director
10 June 2014
Appointed Prior, Morgan Allan as Director
3 June 2014
Appointed Brooks, Daniel Edward as Director
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Corporate entity · Notified 17 November 2021
Owns 75–100% of shares
Holds 75–100% of voting rights
Right to appoint and remove directors
Private Limited Company
Reg. no. 11111631
Former controllers (3)
20 October 2021
Ceased L3harris Technologies, Inc. — Owns 75–100% of shares
26 June 2019
Ceased L3 Technologies, Inc. — Owns 75–100% of shares
31 August 2018
Ceased Daniel Edward Brooks — Owns 75–100% of shares (as a trust)
Group structure 12 companies
Ownership group derived from the Companies House PSC register
L3harris Autonomous Surface Vehicles Limited Owns 75–100% of shares
L3harris Communications Systems UK Limited Owns 75–100% of shares
Harris Pension Management Limited Owns 25–50% of shares
L3harris Cyber-Cyonyx UK Ltd This company Owns 75–100% of shares
L3harris Defence Investments Limited Owns 75–100% of shares
L3harris Mapps Limited Owns 75–100% of shares
Fast Holdings Limited Owns 25–50% of shares
Fast Training Services Limited Owns 75–100% of shares
L3harris Release & Integrated Solutions Ltd Owns 75–100% of shares
L3harris TRL Technology Limited Owns 75–100% of shares
Filings 73
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 12 August 2026 | Full accounts | 2 January 2026 | ||
| 1 July 2026 | Certificate of change of name | |||
| 21 June 2026 | Confirmation statement with no updates | 3 June 2026 | ||
| 10 April 2026 | Appointment of a director | |||
| 10 April 2026 | Termination of appointment of a director |
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