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The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers who have significant controls over the individuals in focus are always inapplicable. The offspring entities and appointments are those entities that the individuals in focus can influence on.

Clicking the links on parent entities or officers, and offspring entities or managed companies will put them in focus and show upstream or downstream connections. In general, ascendant entities can be found by moving toward upstream, and descendant entities are by toward downstream. In this way, progenitor entities such as grandparent companies (parents of parent), sibling companies (children of parent), partner companies (parents of child), and progeny entities such as grandchild companies (children of child) can be found easily.

Parent entities and officers
Inapplicable
parent relation
Individuals in focus

Witthoft, Delwin Gunther

child relation
Offspring entities and appointments
Active 3
  • 1
    icon of address 2 Eastbourne Terrace, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2014-03-05 ~ dissolved
    IIF 26 - Director → ME
  • 2
    RIO TINTO ALUMINIUM HOLDINGS LIMITED - 2006-11-06
    R.T.Z. ALUMINIUM HOLDINGS LIMITED - 1997-07-08
    icon of address 2 Eastbourne Terrace, London
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2014-03-05 ~ dissolved
    IIF 3 - Director → ME
  • 3
    icon of address 2 Eastbourne Terrace, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2014-03-05 ~ dissolved
    IIF 27 - Director → ME
Ceased 25
  • 1
    icon of address 8 Cumbrian House, Marsh Wall, London, England
    Active Corporate (5 parents)
    Equity (Company account)
    20,007 GBP2024-12-24
    Officer
    icon of calendar 2010-04-27 ~ 2016-06-17
    IIF 20 - Director → ME
  • 2
    PEABODY AUSTRALIA LIMITED - 2001-02-08
    RICHARD COSTAIN (HOLDINGS) LIMITED - 1993-05-14
    icon of address 6 St James's Square, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 19 - Director → ME
  • 3
    icon of address 5 C/o Leonard Scudder, Berkeley Rowe, Merchant Square, London, United Kingdom
    Active Corporate (4 parents)
    Equity (Company account)
    2,039,372 GBP2024-12-31
    Officer
    icon of calendar 2014-04-11 ~ 2015-04-17
    IIF 28 - Director → ME
  • 4
    R.T.Z. AUSTRALIA HOLDINGS LIMITED - 1997-06-23
    icon of address 6 St James's Square, London
    Active Corporate (5 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 6 - Director → ME
  • 5
    ORLINPOINT LIMITED - 2012-03-20
    icon of address 6 St James's Square, London
    Active Corporate (4 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 4 - Director → ME
  • 6
    SUMMERWAND LIMITED - 2004-02-03
    icon of address 6 St James's Square, London
    Dissolved Corporate (4 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 11 - Director → ME
  • 7
    SUMMERVANISH LIMITED - 2004-01-21
    icon of address 6 St James's Square, London
    Dissolved Corporate (4 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 16 - Director → ME
  • 8
    icon of address 6 St James's Square, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2014-05-31 ~ 2015-04-17
    IIF 12 - Director → ME
  • 9
    RIO TINTO ENERGY LIMITED - 2013-05-29
    JAKHAU HOLDINGS LIMITED - 2006-11-28
    ADAMARA LIMITED - 2013-07-05
    icon of address 6 St James's Square, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 9 - Director → ME
  • 10
    RIO TINTO FINANCE HOLDINGS LIMITED - 2013-08-20
    RIO TINTO CANADIAN HOLDINGS LIMITED - 2003-04-02
    R.T.Z. CANADIAN HOLDINGS LIMITED - 1997-06-23
    icon of address 6 St James's Square, London
    Dissolved Corporate (4 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 15 - Director → ME
  • 11
    SELTRUST INVESTMENTS,LIMITED - 1989-07-21
    icon of address 6 St James's Square, London
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 18 - Director → ME
  • 12
    R.T.Z. BRISTOL LIMITED - 1983-12-01
    IMPERIAL SMELTING CORPORATION(N.S.C.)LIMITED - 1981-12-31
    R.T.Z. METALS LIMITED - 1997-06-12
    icon of address 6 St James's Square, London
    Active Corporate (5 parents, 3 offsprings)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 7 - Director → ME
  • 13
    R.T.Z. NOMINEES LIMITED - 1997-06-05
    icon of address 6 St James's Square, London, United Kingdom
    Active Corporate (5 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 14 - Director → ME
  • 14
    R.T.Z.OVERSEAS HOLDINGS LIMITED - 1997-06-12
    icon of address 6 St James's Square, London
    Active Corporate (5 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 8 - Director → ME
  • 15
    R.T.Z. PENSION INVESTMENTS LIMITED - 1997-06-25
    icon of address 6 St James's Square, London
    Dissolved Corporate (4 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 17 - Director → ME
  • 16
    icon of address 6 St James's Square, London, United Kingdom
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2014-05-31 ~ 2015-04-17
    IIF 13 - Director → ME
  • 17
    icon of address 6 St James's Square, London
    Active Corporate (4 parents)
    Officer
    icon of calendar 2014-09-15 ~ 2015-04-17
    IIF 22 - Director → ME
  • 18
    RIO TINTO TECHNOLOGY RESOURCES UK LIMITED - 2012-10-29
    icon of address 6 St James's Square, London
    Active Corporate (4 parents)
    Officer
    icon of calendar 2014-05-17 ~ 2015-04-17
    IIF 21 - Director → ME
  • 19
    RIO TINTO MINERAL SERVICES LIMITED - 2011-10-03
    RTZ MINERAL SERVICES LIMITED - 1997-06-09
    HACKREMCO (NO.609) LIMITED - 1990-10-18
    icon of address 6 St James's Square, London
    Dissolved Corporate (5 parents)
    Officer
    icon of calendar 2015-01-31 ~ 2015-04-17
    IIF 1 - Director → ME
  • 20
    RIO TINTO URANIUM LIMITED - 2011-10-03
    icon of address 6 St James's Square, London
    Dissolved Corporate (6 parents)
    Officer
    icon of calendar 2015-01-31 ~ 2015-04-17
    IIF 2 - Director → ME
  • 21
    icon of address 6 St James's Square, London
    Active Corporate (4 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 24 - Director → ME
  • 22
    icon of address 6 St James's Square, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 25 - Director → ME
  • 23
    icon of address 25 Farringdon Street, London
    Dissolved Corporate (4 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 5 - Director → ME
  • 24
    icon of address 6 St James's Square, London
    Dissolved Corporate (4 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 23 - Director → ME
  • 25
    icon of address 6 St James's Square, London
    Active Corporate (3 parents)
    Officer
    icon of calendar 2014-03-05 ~ 2015-04-17
    IIF 10 - Director → ME

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Contains public sector information retrieved at 16 October 2025 and licensed under the Open Government Licence v3.0.