Filing status
- Accounts due
- 31 October 2027
- Last accounts
- 30 April 2026
- Conf. stmt due
- 24 November 2026
- Last conf. stmt
- 10 November 2025
Sdi Group PLC
- Incorporated
- 28 September 2007 (19 years)
- Previously known as
- Scientific Digital Imaging PLC (until 30 October 2019)This list may be incomplete. See all names on Companies House
- Industry
- Activities of head offices (70100)
- Directors
- Mark Rupert Maxwell Fryer
- Accounts type
- Group
- Region
- East of England
- Address
- Beacon HouseNuffield RoadCambridgeCB4 1TF
Charges
- Total
- 8
- Outstanding
- 7
- Part satisfied
- 0
- Satisfied
- 1
Officers 8 active
Officer details are public data from the Companies House register.
Director · Appointed 1 November 2026
Also at Aerospace Technology Institute · more companies
British
Born November 1962
Fryer, Mark Rupert Maxwell
Director · Appointed 16 July 2026
British
Born April 1967 (59)
Director · Appointed 29 September 2023
British
Born May 1973 (53)
Director · Appointed 1 February 2023
Also at Navtech Radar Limited · more companies
British
Born March 1975 (51)
Sharma, Amitabh
Secretary · Appointed 21 September 2022
Director · Appointed 8 August 2022
British
Born February 1965 (61)
Director · Appointed 8 August 2022
British
Born January 1967 (59)
Director · Appointed 16 March 2010
British
Born May 1949 (77)
Officer history (16 former)
1 November 2026
31 July 2026
16 July 2026
Appointed Fryer, Mark Rupert Maxwell as Director
19 January 2024
29 September 2023
1 February 2023
21 September 2022
Appointed Sharma, Amitabh as Secretary
21 September 2022
Resigned Abell, Jonathan Paul as Secretary
21 September 2022
8 August 2022
8 August 2022
8 August 2022
Resigned Napper, Isabel as Director
27 July 2018
Appointed Abell, Jonathan Paul as Secretary
27 July 2018
Resigned Creedon, Michael John as Secretary
2 July 2018
27 September 2017
26 July 2017
30 April 2017
21 February 2017
Appointed Napper, Isabel as Director
11 September 2012
31 August 2011
23 June 2010
Appointed Creedon, Michael John as Secretary
22 June 2010
24 May 2010
25 March 2010
16 March 2010
16 March 2010
28 November 2008
22 August 2008
27 June 2008
14 January 2008
14 January 2008
14 January 2008
9 November 2007
9 November 2007
9 November 2007
9 November 2007
28 September 2007
28 September 2007
28 September 2007
Ownership 0 active
People and entities with significant control, from the Companies House PSC register
The company has declared that it has no person with significant control.
Other holdings 5
Companies where Sdi Group PLC is registered as a person with significant control
Owns 75–100% of shares
Active
Owns 75–100% of shares
Active
Owns 75–100% of shares
Active
Owns 75–100% of shares
Active
Owns 75–100% of shares
Active
Group structure 20 shown
Ownership group derived from the Companies House PSC register
Sdi Group PLC This company
Applied Thermal Control Limited Owns 75–100% of shares
Atik Cameras Limited Owns 75–100% of shares
Chell Instruments Limited Owns 75–100% of shares
Collins Walker Limited Owns 75–100% of shares
Ducthub Limited Owns 75–100% of shares
Fraser Anti-Static Techniques Limited Owns 75–100% of shares
Graticules Optics Limited Owns 75–100% of shares
Hillmead Technology Limited Owns 75–100% of shares
Esker Technology Limited Owns 75–100% of shares
RGB Monolithic Limited Owns 75–100% of shares
Labhub Limited Holds 75–100% of voting rights
Lte Scientific Limited Owns 75–100% of shares
Monmouth Scientific Limited Owns 75–100% of shares
MPB Industries Limited Owns 75–100% of shares
Opus Instruments Ltd Owns 75–100% of shares
Peak Sensors (Holding) Limited Owns 75–100% of shares
Peak Sensors (Property) Limited Owns 75–100% of shares
Peak Sensors Limited Owns 75–100% of shares
Safelab Systems Limited Owns 75–100% of shares
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 2 November 2026 | Appointment of a director | |||
| 21 October 2026 | Group of companies' accounts | 30 April 2026 | ||
| 31 July 2026 | Termination of appointment of a director | |||
| 17 July 2026 | Appointment of a director | |||
| 30 April 2026 | Registration of a charge |
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