Open Society Foundation London

Active10187396 Private company limited by guarantee

Incorporated: 18 May 2016 (10 years)
Industry: Other education n.e.c. (85590)
Directors: Miklos Sandor
Leela Ramdhani
Michael Vachon
all 4 directors
Controlled by: Laura Joan Silber
Alexander George Soros
Accounts type: Full
Region: Greater London
Address: C/o Sedulo London Office 605
Albert House 256-260 Old Street
London
EC1V 9DD

Filing status

Accounts due: 30 September 2027
Last accounts: 31 December 2025
Conf. stmt due: 31 May 2027
Last conf. stmt: 17 May 2026

Officers 5 active

Officer details are public data from the Companies House register.

Sandor, Miklos

Director · Appointed 26 October 2026

Hungarian

Born June 1973 (53)

Ramdhani, Leela

Director · Appointed 26 October 2026

South African

Born December 1966 (59)

Fine, Deborah Lauren

Secretary · Appointed 8 December 2025

Vachon, Michael

Director · Appointed 3 January 2024

American

Born October 1962 (64)

Soros, Alexander George, Mr.

Director · Appointed 5 October 2016

Also at The International Crisis Group

American

Born October 1985 (41)

Officer history (11 former)

26 October 2026

Appointed Ramdhani, Leela as Director

26 October 2026

Appointed Sandor, Miklos as Director

8 December 2025

Appointed Fine, Deborah Lauren as Secretary

3 January 2024

Resigned Livingston, Catherine as Director

3 January 2024

Appointed Vachon, Michael as Director

31 December 2022

Resigned Kaletsky, Anatole as Director

31 December 2022

Resigned Payne, Sarah Elizabeth Dickinson as Secretary

24 October 2022

Resigned Fine, Deborah as Director

24 October 2022

Appointed Livingston, Catherine as Director

25 May 2022

Resigned Scovell, Gail, Ms. as Director

19 May 2022

Appointed Fine, Deborah as Director

31 December 2020

Resigned Gaspard, Patrick as Director

18 June 2019

Appointed Scovell, Gail, Ms. as Director

1 January 2018

Appointed Gaspard, Patrick as Director

11 September 2017

Resigned Stone, Christopher Edward as Director

7 December 2016

Resigned Gladstone, Philippa, Mrs as Secretary

7 December 2016

Appointed Payne, Sarah Elizabeth Dickinson as Secretary

5 October 2016

Resigned Soros, Alexander George as Director

5 October 2016

Appointed Soros, Alexander George, Mr. as Director

5 October 2016

Resigned Cuplinskas, Darius Jonas as Director

5 October 2016

Resigned Saurma-Jeltsch, Johannes Martin Dietrich Eberhart Graf as Director

5 October 2016

Appointed Kaletsky, Anatole as Director

5 October 2016

Appointed Soros, Alexander George as Director

18 May 2016

Appointed Cuplinskas, Darius Jonas as Director

18 May 2016

Appointed Saurma-Jeltsch, Johannes Martin Dietrich Eberhart Graf as Director

18 May 2016

Appointed Gladstone, Philippa, Mrs as Secretary

18 May 2016

Appointed Stone, Christopher Edward as Director

Ownership 2 active

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

Laura Joan Silber

Individual · Notified 19 December 2024

Holds 25–50% of voting rights

American

Born August 1961 (65)

Alexander George Soros

Individual · Notified 31 March 2024

Holds 25–50% of voting rights

American

Born October 1985 (41)

Financials

Balance sheet as at 31 December 2025 · full accounts

Net Assets: £3,503,654
Cash: £15,294,816
Profit Before Tax: (£818,505)

Debt Ratio: 85%
Current Ratio: 1.2x
Return on Equity: -26%

Trend

Net Assets

Balance sheet detail

	2025	2024	2023	2021
Fixed Assets	£5,963,864	£7,166,560	£7,644,248	£9,357,594
Current Assets	£18,003,752	£14,776,739	£18,790,124	£11,397,497
Debtors	£2,708,936	£9,438,533	£12,357,631	£3,385,717
Cash	£15,294,816	£5,338,206	£6,432,493	£8,011,780
Creditors (< 1 year)	£14,826,319	£13,659,404	£17,310,637	£11,703,798
Creditors (> 1 year)	£5,637,643	£3,884,013	£4,552,632	£3,379,603
Net Current Assets	£3,177,433	£1,117,335	£1,479,487	(£306,301)
Net Assets	£3,503,654	£4,399,882	£4,571,103	£5,671,690
Shareholder Funds	£3,503,654	£4,399,882	£4,571,103	£5,671,690

Turnover				£37,631,088
Admin Expenses	£46,574,288	£46,436,476	£70,513,248	£38,571,629
Staff Costs	£12,925,039	£16,508,770
Operating Profit				(£940,541)
Profit Before Tax	(£818,505)	(£136,791)	(£378,665)	(£939,154)
Tax	£77,723	£34,430	£19,381	£0
Profit for Period	(£896,228)	(£171,221)	(£398,046)	(£939,154)

Filings 57

Date	Description	Made Up To
5 November 2026	Appointment of a director
5 November 2026	Appointment of a director
1 July 2026	Full accounts	31 December 2025
24 June 2026	Change of details for a person with significant control
24 June 2026	Change of details for a person with significant control