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Company · Slough Liquidation

Diamond DCO ONE Limited

Activities of head offices

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Official record Companies House · updated 27th September 2026 · Sources

Network

The large node is Diamond DCO ONE Limited. Red nodes are organisations, white nodes are people. Sign in free to explore further.

Who leads it

Previous officers 44

  1. Robin Lindsay Dargue 2022-2023 Director View profile
  2. Christian Keen 2019-2022 Director View profile
  3. Jane Davies 2019-2022 Director View profile
  4. Toby Matthew Anderson 2018-2022 Director View profile
  5. Marcus Hilger 2017-2019 Director View profile
  6. Hanns Martin Lipp 2016-2017 Director View profile
  7. Catherine Mcdermott 2016-2019 Director View profile
  8. Jennifer Ruth Poole 2016-2019 Director View profile
  9. Hilary Jane Stables 2016-2018 Director View profile
  10. Nigel Swift 2013-2019 Director View profile
  11. Cormac Gregory David Tobin 2013-2017 Director View profile
  12. Stephen William Anderson 2012-2016 Director View profile
  13. Thorsten Beer 2011-2016 Director View profile
  14. Anthony Robert Page 2011-2012 Director View profile
  15. Richard Charles Smith 2008-2010 Director View profile
  16. Claude Tomaszewski 2008-2011 Director View profile
  17. Mark Litten James 2007-2013 Director View profile
  18. Andrew John Willetts 2007-2012 Director View profile
  19. Justinian Joseph Ash 2004-2008 Director View profile
  20. John Hood 2002-2007 Director View profile
  21. Ian Davidson 2002-2007 Director View profile
  22. Stephen Roger Dunn 2002-2007 Director View profile
  23. Dr Ulf Markus Schneider 2000-2001 Director View profile
  24. Ronald Armin Mittermeier 2000-2000 Director View profile
  25. Vizard, Ronald Charles, Harold 1999-2002 Director View profile
  26. Gerhard Viktor Mischke 1999-2000 Director View profile
  27. Michael Ashley Ward 1997-2003 Director View profile
  28. Graham Anthony Kershaw 1997-2002 Director View profile
  29. Michael Evelyn Major 1996-1999 Director View profile
  30. David Leslie Taylor 1995-1998 Director View profile
  31. Stefan Mario Meister 1995-1999 Director View profile
  32. George Keith Turgoose 1994 Director View profile
  33. Andrew Leonard Wallis 1995 Director View profile
  34. John Mckitterick Johnston 1991 Director View profile
  35. Gary Greenhalgh 1997 Director View profile
  36. Anthony William Revell 1995 Director View profile
  37. William Michael Pybus 1992 Director View profile
  38. Nichola Louise Legg 2016-2023 Secretary View profile
  39. Wendy Margaret Hall 2015-2016 Secretary View profile
  40. William Shepherd 2011-2013 Secretary View profile
  41. Peter Smerdon 2000-2011 Secretary View profile
  42. John Richard Bridge Davies 1997-2000 Secretary View profile
  43. Francis Joseph Murphy 1991-1997 Secretary View profile
  44. Derek Robert Hampton 1991 Secretary View profile

Directors and secretaries as filed at Companies House.

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About

What it does
Activities of head offices
Incorporated
12/12/1929
Registered office
Slough
Previous names
Admenta Holdings Limited (until 30/11/2023)
AAH Subsidiaries Limited (until 18/04/2007)

Ownership

Owned by (3) 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.

  • Sapphire 333 Limited
    75-100% shares, 75-100% voting, appoints directors · notified 2023-11-25
  • AAH Limited ceased 2023-08-31
    75-100% shares (firm) · notified 2016-04-06
  • HHG FOX ONE Limited ceased 2023-11-25
    75-100% shares, 75-100% voting, appoints directors · notified 2023-08-31

Group

  1. Diamond DCO ONE Limited is controlled by Sapphire 333 Limited
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2023-11-25 · source: Companies House PSC register
  2. Sapphire 333 Limited is controlled by Graham Wiseman
    Evidence
    ceased 75-100% shares, 75-100% voting, appoints directors · notified 2023-10-26, ceased 2023-12-21 · source: Companies House PSC register

Ultimately controlled by Graham Wiseman.

45 other companies 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.

1 directors on the board

2.6y median 2.6y
average tenure
2.6y
longest tenure
0
directors past 6 years

First-time vs portfolio directors

Portfolio (1)

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

Where else this board sits iWhere else this board sitsThe charitable fields these directors govern in elsewhere, by Charity Commission classification. Excludes this company and any charity it is the legal face of.

Business services 2Finance 2Retail and trade 2Professional services 1

The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.

Gaps to watch

  • A single director - no second pair of eyes on any decision

Where to look Suggested search: a second director to remove single-point control.

Sources

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

Record details
Company number
00244282
Status
Liquidation
Type
Private Limited Company
Accounts next due
31/12/2024
Edition
Register edition compiled 27th September 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

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