Upside X Limited

Active12626207 Private limited company

Incorporated: 27 May 2020 (6 years)
Industry: Activities of other holding companies n.e.c. (64209)
Directors: Sandrine Carreau
Matthieu Courtecuisse
Alix Jouve De Guibert
all 4 directors
Owned by: Sia Partners UK PLC
Accounts type: Group
Region: Greater London
Address: 4th Floor
90
Bartholomew Close
London
EC1A 7BN

Filing status

Accounts due: 31 March 2027
Last accounts: 30 June 2025
Conf. stmt due: 30 May 2027
Last conf. stmt: 16 May 2026

Officers 4 active

Officer details are public data from the Companies House register.

Carreau, Sandrine

Director · Appointed 1 March 2025

French

Born April 1987 (39)

Courtecuisse, Matthieu

Director · Appointed 1 March 2025

French

Born June 1973 (53)

Jouve De Guibert, Alix

Director · Appointed 1 March 2025

French

Born November 1980

O'Sullivan, Gary

Director · Appointed 1 March 2025

Irish

Born February 1968 (58)

Officer history (2 former)

1 March 2025

Appointed Carreau, Sandrine as Director

1 March 2025

Appointed Courtecuisse, Matthieu as Director

1 March 2025

Appointed Jouve De Guibert, Alix as Director

1 March 2025

Appointed O'Sullivan, Gary as Director

1 March 2025

Resigned Morris, Nigel as Director

1 March 2025

Resigned Banaie, Niku Tyrone as Director

26 October 2020

Appointed Morris, Nigel as Director

27 May 2020

Appointed Banaie, Niku Tyrone as Director

Ownership 1 active

People and entities with significant control, from the Companies House PSC register

Sia Partners UK PLC

Corporate entity · Notified 1 March 2025

Owns 75–100% of shares

Holds 75–100% of voting rights

Right to appoint and remove directors

Public Limited Company

Reg. no. 05884769

Former controllers (1)

1 March 2025

Ceased Niku Tyrone Banaie — Owns 75–100% of shares

Group structure 3 companies

Ownership group derived from the Companies House PSC register

Sia Partners UK PLC

Upside X Limited This company Owns 75–100% of shares

Upside Studio Ltd Owns 75–100% of shares

Financials

Balance sheet as at 30 June 2025 · group accounts

Net Assets: £2,283,397
Cash: £194,936
Employees: 18

Trend

Net Assets

Balance sheet detail

	2025	2024	2023	2022	2021
Current Assets				£100
Debtors					£5,110
Cash	£194,936	£151,081	£73,080	£100
Creditors (< 1 year)	£374,027	£377,664	£197,100	£56,107	(£1)
Net Current Assets	(£178,853)	(£226,583)	(£124,020)	(£56,007)	£5,111
Net Assets	£2,283,397	£2,235,667	£2,338,230	£2,406,243	£2,467,361
Shareholder Funds	£2,283,397	£2,235,667	£2,338,230