Website & contact details
- Website
System1 Group PLC
- Incorporated
- 19 September 2006 (20 years)
- Previously known as
- Brainjuicer Group PLC (until 23 March 2017)This list may be incomplete. See all names on Companies House
- Industry
- Market research and public opinion polling (73200)
- Directors
- Lewis Simon Robinson
- Accounts type
- Group
- Region
- Greater London
- Address
- 4 More London RiversideLondonSE1 2AU
Filing status
- Accounts due
- 30 September 2027
- Last accounts
- 31 March 2026
- Conf. stmt due
- 3 October 2027
- Last conf. stmt
- 19 September 2026
Charges
- Total
- 2
- Outstanding
- 2
- Part satisfied
- 0
- Satisfied
- 0
Officers 8 active
Officer details are public data from the Companies House register.
Robinson, Lewis Simon
Director · Appointed 2 March 2026
British
Born March 1992 (34)
Director · Appointed 6 December 2022
British
Born October 1982 (44)
Ziolko-Nishikant, Renata Anna
Secretary · Appointed 28 September 2022
Canadian,British
Born June 1969 (57)
Director · Appointed 27 May 2022
British
Born November 1970
Director · Appointed 15 February 2021
British
Born February 1957 (69)
Director · Appointed 26 June 2020
British
Born July 1962 (64)
Director · Appointed 11 June 2018
British
Born June 1969 (57)
Officer history (17 former)
3 March 2026
2 March 2026
Appointed Robinson, Lewis Simon as Director
6 December 2022
28 September 2022
Appointed Ziolko-Nishikant, Renata Anna as Secretary
28 September 2022
28 September 2022
Resigned Willford, Christopher Patrick as Secretary
1 September 2022
15 July 2022
Resigned Wakely, Jane Caroline as Director
27 May 2022
31 January 2022
Resigned Barden, Stefan as Director
13 August 2021
15 February 2021
12 October 2020
Resigned Kearon, John Victor as Secretary
12 October 2020
Appointed Willford, Christopher Patrick as Secretary
26 June 2020
Appointed Barden, Stefan as Director
26 June 2020
20 April 2020
Appointed Kearon, John Victor as Secretary
20 April 2020
20 April 2020
30 September 2018
Resigned Hunt, Alexander James as Director
25 July 2018
24 July 2018
Appointed Wakely, Jane Caroline as Director
11 June 2018
30 June 2017
1 April 2017
Appointed Hunt, Alexander James as Director
30 September 2012
1 July 2012
30 April 2012
5 January 2012
26 November 2010
5 September 2007
5 October 2006
5 October 2006
5 October 2006
5 October 2006
5 October 2006
5 October 2006
5 October 2006
5 October 2006
19 September 2006
19 September 2006
19 September 2006
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.
Holdings 3
Companies where System1 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
Former controllers (1)
19 November 2018
What System1 Group say about themselves
“System1: the creative effectiveness platform that predicts & improves the commercial impact of ads & ideas. We help the world’s leading brands to create with confidence.”
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 2 April 2026 | Termination of appointment of a director | |||
| 2 April 2026 | Appointment of a director | |||
| 17 October 2025 | Interim accounts | 24 September 2025 | ||
| 3 October 2025 | Register inspection address has been changed | |||
| 3 October 2025 | Confirmation statement with no updates | 19 September 2025 |
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