Website & contact details
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System1 Research Limited
- Incorporated
- 29 December 1999 (26 years)
- Previously known as
- System 1 Research Limited (until 17 March 2017)Brainjuicer Limited (until 14 March 2017)Brainjuicer.Com Limited (until 18 March 2003)Earlier: Creative-Toolbox.Com Limited, Research-Toolbox.Com Limited
- Industry
- Market research and public opinion polling (73200)
- Owned by
- Accounts type
- Audit exemption subsidiary
- Region
- Greater London
- Address
- 4 More London RiversideLondonSE1 2AU
Filing status
- Accounts due
- 31 December 2027
- Last accounts
- 31 March 2026
- Conf. stmt due
- 12 January 2027
- Last conf. stmt
- 29 December 2025
Charges
- Total
- 5
- Outstanding
- 4
- Part satisfied
- 0
- Satisfied
- 1
Officers 3 active
Officer details are public data from the Companies House register.
Director · Appointed 3 March 2026
British
Born October 1982 (44)
Willford, Christopher Patrick
Secretary · Appointed 12 October 2020
Director · Appointed 4 August 2020
British
Born July 1962 (64)
Officer history (16 former)
3 March 2026
2 March 2026
12 October 2020
Appointed Willford, Christopher Patrick as Secretary
12 October 2020
Resigned Kearon, John Victor as Secretary
4 August 2020
3 April 2020
Appointed Kearon, John Victor as Secretary
3 April 2020
3 April 2020
28 July 2018
30 September 2012
30 April 2012
29 January 2008
28 February 2006
6 December 2005
Resigned Chien, Yvonne as Director
3 November 2004
5 December 2003
5 December 2003
Resigned Kearon, Sarah as Secretary
22 January 2003
22 January 2003
22 January 2003
22 January 2003
22 January 2003
Appointed Chien, Yvonne as Director
22 January 2003
14 November 2000
25 April 2000
25 April 2000
Appointed Kearon, Sarah as Secretary
25 April 2000
17 January 2000
29 December 1999
29 December 1999
29 December 1999
29 December 1999
29 December 1999
29 December 1999
29 December 1999
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Plc
Reg. no. 05940040
Group structure 4 companies
Ownership group derived from the Companies House PSC register
System1 AD Ratings Limited Owns 75–100% of shares
System1 Agency Ltd Owns 75–100% of shares
System1 Research Limited This company Owns 75–100% of shares
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 | |||
| 26 January 2026 | Confirmation statement with no updates | 29 December 2025 | ||
| 21 January 2026 | Change of details for a person with significant control | |||
| 16 December 2025 | Other filing |
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