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Company

Dimensional Fund Advisors LTD.

Dimensional Fund Advisors LTD. is an active UK company (number 02569601), incorporated 1990, with 7 current directors including John Daniel Boyd and John Bernard Surridge. Source: Companies House, updated 4th October 2026.

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Official record Companies House · updated 4th October 2026 · Sources

Network

The large node is Dimensional Fund Advisors LTD.. Red nodes are organisations, white nodes are people. Sign in free to explore further.

Who leads it

Previous officers 18

  1. Gerard Kieran O'Reilly 2018-2021 Director View profile
  2. David Paul Butler 2017-2021 Director View profile
  3. Stephen Clark 2016-2021 Director View profile
  4. Arthur Howard Faris Barlow 2013-2018 Director View profile
  5. Patrick Michael Keating 2012-2015 Director View profile
  6. Eduardo Repetto 2010-2017 Director View profile
  7. Andrew Gordon Cain 2009-2013 Director View profile
  8. David Robert Martin 2007-2016 Director View profile
  9. Daniel Mark Wheeler 2004-2010 Director View profile
  10. David Gilbert Booth 2002-2017 Director View profile
  11. Philip Russell Nash 2002-2008 Director View profile
  12. David Murray Salisbury 2002-2014 Director View profile
  13. Michael Thomas Scardina 2002-2007 Director View profile
  14. Garrett Quigley 2002-2010 Director View profile
  15. John Carmine Siciliano 2001-2005 Director View profile
  16. Rex Andrew Sinquefield 2005 Director View profile
  17. Margaret East 1993-2001 Secretary View profile
  18. Deborah Joanne Ferris 1993 Secretary View profile

Directors and secretaries as filed at Companies House.

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About

Incorporated
19/12/1990

Ownership

Owned by (1) iOwned byIndividuals and companies registered as having significant control over this company, from the Companies House PSC (persons with significant control) register. People whose ownership could not be confirmed to one individual are not listed as confirmed owners.

  • Rex Andrew Sinquefield
    75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06
  • Possible match - name could not be confirmed to one individualiPossible matchThis PSC filing could not be confirmed to one individual. Not shown as confirmed ownership.

Group

  1. Dimensional Fund Advisors LTD. is controlled by Rex Andrew Sinquefield
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register

Ultimately controlled by Rex Andrew Sinquefield.

1 other company in this group

Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.

Board analysis

Board DNA

How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.

7 directors on the board

10.1y median 6.8y
average tenure
25.2y
longest tenure

Directors past 6 years

First-time vs portfolio directors

First-time (6)

Portfolio (1)

0
also govern a charity
0
left in the last 12 months

Gaps to watch

  • Several long-serving directors could step down together
  • No director brings board experience from anywhere else
  • Narrow spread of sectors across the board

Where to look Suggested search: succession planning for long-tenured seats; a director with board experience elsewhere.

Sources

Official record from Companies House. Governance Register calculates the connections.

Record details
Company number
02569601
Status
Active
Type
Private Limited Company
Edition
Register edition compiled 4th October 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

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