Website & contact details
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Critical Mass (UK) Limited
- Incorporated
- 4 May 2007 (19 years)
- Industry
- Media representation services (73120)
- Owned by
- Omnicom Group Inc
- Accounts type
- Full
- Region
- Greater London
- Address
- Bankside 390 - 100 Southwark StreetLondonSE1 0SW
Filing status
- Accounts due
- 30 September 2027
- Last accounts
- 31 December 2025
- Conf. stmt due
- 25 May 2027
- Last conf. stmt
- 11 May 2026
Officers 3 active
Officer details are public data from the Companies House register.
Traynor, John Devon
Secretary · Appointed 28 August 2025
British
Born December 1979 (46)
Director · Appointed 1 April 2019
Also at The Planning Shop International Limited (proposed for strike-off), Wellset Repro Limited, Credera Limited · more companies
British
Born January 1971 (55)
Officer history (11 former)
28 August 2025
Appointed Traynor, John Devon as Secretary
28 August 2025
1 April 2025
Resigned Kagan, Adam Bradley as Director
2 August 2024
Appointed Kagan, Adam Bradley as Director
2 August 2024
Resigned Tamkee, Lee Patrick as Director
7 July 2022
Resigned Lennon, Andrea Leigh as Director
7 July 2022
Resigned Mclaughlin, John Scott as Director
1 September 2021
1 April 2019
31 March 2019
10 April 2017
Appointed Lennon, Andrea Leigh as Director
1 July 2016
1 September 2015
Resigned Jones, Susanne as Director
1 September 2015
Appointed Mclaughlin, John Scott as Director
30 June 2014
31 July 2011
Resigned Gokiert, John Christopher as Director
31 July 2011
Resigned Wilkins, Dianne Mary as Director
31 August 2010
Resigned Silano, Antonio Urbano as Director
1 August 2010
Appointed Jones, Susanne as Director
2 June 2008
Appointed Silano, Antonio Urbano as Director
9 May 2007
4 May 2007
Appointed Gokiert, John Christopher as Director
4 May 2007
Appointed Wilkins, Dianne Mary as Director
4 May 2007
Appointed Tamkee, Lee Patrick as Director
4 May 2007
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Omnicom Group Inc
Corporate entity · Notified 6 April 2016
Owns 75–100% of shares
Holds 75–100% of voting rights
Right to appoint and remove directors
Public Corporation
Reg. no. 55569
Filings 90
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 8 October 2026 | Full accounts | 31 December 2025 | ||
| 11 May 2026 | Confirmation statement with no updates | 11 May 2026 | ||
| 8 October 2025 | Full accounts | 31 December 2024 | ||
| 2 September 2025 | Termination of appointment of a secretary | |||
| 1 September 2025 | Appointment of a secretary |
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