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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.

Jump to: Offsprings
Parent entities and officers
Inapplicable
parent relation
Individuals in focus

Urwin, Roger John, Dr

child relation
Offspring entities and appointments 42
  • 1
    ATCO POWER (ELSEF) LTD
    08387364
    Dissolved Corporate (6 parents)
    Officer
    2013-02-04 ~ 2014-04-08
    IIF 1 - Director → ME
  • 2
    ATCO POWER (HOOTON PARK) LTD
    08387304
    Dissolved Corporate (6 parents)
    Officer
    2013-02-04 ~ 2014-04-08
    IIF 2 - Director → ME
  • 3
    ATCO POWER GENERATION LTD.
    - now 02484736
    CU POWER GENERATION LIMITED - 1999-04-23
    CALLMAIN LIMITED - 1990-06-27
    Dissolved Corporate (37 parents, 3 offsprings)
    Officer
    2011-01-18 ~ 2019-09-03
    IIF 4 - Director → ME
  • 4
    BARKING POWER LIMITED
    - now 02354681
    NEATDON LIMITED - 1990-05-29
    Active Corporate (105 parents)
    Officer
    2011-01-18 ~ 2018-12-14
    IIF 6 - Director → ME
  • 5
    CARILLION (AM) LIMITED - now
    ALFRED MCALPINE LIMITED
    - 2008-03-18 01367044 01220479... (more)
    ALFRED MCALPINE PLC
    - 2008-02-12 01367044 01220479... (more)
    MARCHWIEL PLC - 1985-02-04
    Liquidation Corporate (59 parents, 21 offsprings)
    Officer
    2006-09-01 ~ 2008-02-12
    IIF 12 - Director → ME
  • 6
    CENTRICA BUSINESS SOLUTIONS UK LIMITED - now
    ENER-G COMBINED POWER LIMITED - 2018-03-27
    COMBINED POWER LIMITED - 2005-01-28
    COMBINED POWER SYSTEMS LIMITED
    - 2000-02-18 01874716 02592745... (more)
    Active Corporate (58 parents)
    Officer
    (before 1993-01-15) ~ 1994-03-04
    IIF 37 - Director → ME
  • 7
    EDF ENERGY (ENERGY BRANCH) LIMITED - now
    EDF ENERGY (ENERGY BRANCH) PLC - 2016-11-28
    THE LONDON POWER COMPANY PLC
    - 2003-06-30 02449611
    Dissolved Corporate (50 parents, 8 offsprings)
    Officer
    (before 1992-05-31) ~ 1995-09-29
    IIF 40 - Director → ME
  • 8
    EDF ENERGY LIMITED - now
    EDF ENERGY PLC - 2018-10-03
    LONDON ELECTRICITY GROUP PLC - 2003-06-30
    LONDON ELECTRICITY PLC
    - 2001-10-01 02366852 02228168... (more)
    Active Corporate (57 parents, 18 offsprings)
    Officer
    (before 1992-10-09) ~ 1995-09-29
    IIF 41 - Director → ME
  • 9
    ENERGIS PLC
    03438871
    Liquidation Corporate (21 parents)
    Officer
    2001-04-01 ~ 2001-12-19
    IIF 42 - Director → ME
  • 10
    FINA EXPLORATION LIMITED
    00808167
    Active Corporate (64 parents, 1 offspring)
    Officer
    2002-03-15 ~ 2002-10-18
    IIF 38 - Director → ME
  • 11
    FINA PETROLEUM DEVELOPMENT LIMITED
    - now 00740632
    CHARTERHOUSE PETROLEUM DEVELOPMENT LIMITED - 1986-08-01
    CHARTERHOUSE SECURITIES LIMITED - 1976-12-31
    Active Corporate (65 parents)
    Officer
    2002-03-15 ~ 2002-10-18
    IIF 35 - Director → ME
  • 12
    MHCRA LIMITED
    05309432
    Active Corporate (6 parents)
    Officer
    2020-09-18 ~ now
    IIF 30 - Director → ME
  • 13
    NATIONAL GAS TRANSMISSION PLC - now
    NATIONAL GRID GAS PLC
    - 2023-02-06 02006000 04023840
    TRANSCO PLC
    - 2005-10-10 02006000 04023840
    BG TRANSCO PLC - 2000-10-23
    BG PUBLIC LIMITED COMPANY - 1999-12-13
    BRITISH GAS PUBLIC LIMITED COMPANY - 1997-02-17
    Active Corporate (111 parents, 7 offsprings)
    Officer
    2002-10-21 ~ 2006-12-31
    IIF 20 - Director → ME
  • 14
    NATIONAL GRID (US) HOLDINGS LIMITED
    - now 02630496 03675375... (more)
    ELECCOM LIMITED - 1999-05-28
    INTERCEDE 917 LIMITED - 1991-12-09
    Active Corporate (42 parents, 3 offsprings)
    Officer
    1999-06-03 ~ 2006-12-31
    IIF 28 - Director → ME
  • 15
    NATIONAL GRID (US) INVESTMENTS
    03784527 03784528... (more)
    Dissolved Corporate (27 parents)
    Officer
    1999-06-09 ~ 2003-01-31
    IIF 15 - Director → ME
  • 16
    NATIONAL GRID (US) INVESTMENTS 2 LIMITED - now
    NATIONAL GRID (US) INVESTMENTS 2
    - 2009-03-02 03784528 03867114... (more)
    Dissolved Corporate (34 parents)
    Officer
    1999-06-09 ~ 2003-01-31
    IIF 19 - Director → ME
  • 17
    NATIONAL GRID (US) INVESTMENTS 3
    03867114 03784528... (more)
    Dissolved Corporate (15 parents)
    Officer
    1999-11-10 ~ 2003-01-31
    IIF 9 - Director → ME
  • 18
    NATIONAL GRID (US) INVESTMENTS 4 LIMITED
    03867128 03784528... (more)
    Active Corporate (40 parents, 2 offsprings)
    Officer
    1999-11-10 ~ 2006-12-31
    IIF 16 - Director → ME
  • 19
    NATIONAL GRID (US) PARTNER 1 LIMITED
    04314432 04314442... (more)
    Active Corporate (35 parents, 6 offsprings)
    Officer
    2001-11-28 ~ 2006-12-31
    IIF 18 - Director → ME
  • 20
    NATIONAL GRID (US) PARTNER 2 LIMITED
    04314442 04314432... (more)
    Dissolved Corporate (23 parents)
    Officer
    2002-02-04 ~ 2006-12-31
    IIF 21 - Director → ME
  • 21
    NATIONAL GRID ELECTRICITY TRANSMISSION PLC
    - now 02366977
    NATIONAL GRID COMPANY PLC
    - 2005-07-26 02366977 04031152
    THE NATIONAL GRID COMPANY PLC
    - 2002-10-21 02366977
    Active Corporate (72 parents, 8 offsprings)
    Officer
    1995-09-30 ~ 2006-12-31
    IIF 17 - Director → ME
  • 22
    NATIONAL GRID ELEVEN
    04350916
    Dissolved Corporate (24 parents)
    Officer
    2002-01-18 ~ 2003-01-31
    IIF 14 - Director → ME
  • 23
    NATIONAL GRID FOUR LIMITED
    - now 03928172
    INTERCEDE 1545 LIMITED - 2000-03-13
    Dissolved Corporate (32 parents)
    Officer
    2001-03-30 ~ 2003-01-31
    IIF 11 - Director → ME
  • 24
    NATIONAL GRID HOLDINGS LIMITED
    - now 03096772 03741098... (more)
    NGG LIMITED
    - 1999-03-25 03096772 03741098
    INTERCEDE 1146 LIMITED - 1995-10-26
    Active Corporate (47 parents, 8 offsprings)
    Officer
    1999-03-25 ~ 2006-12-31
    IIF 8 - Director → ME
  • 25
    NATIONAL GRID HOLDINGS ONE PLC
    - now 02367004
    NATIONAL GRID GROUP PLC
    - 2002-01-31 02367004 04031152
    THE NATIONAL GRID GROUP PLC
    - 2000-07-27 02367004
    THE NATIONAL GRID HOLDING PLC
    - 1995-11-17 02367004
    Active Corporate (98 parents, 19 offsprings)
    Officer
    1995-11-17 ~ 2006-12-31
    IIF 27 - Director → ME
    (before 1991-08-15) ~ 1995-09-05
    IIF 31 - Director → ME
  • 26
    NATIONAL GRID INTERNATIONAL LIMITED
    - now 02537092
    NGC ONE LIMITED - 1998-02-04
    INTERCEDE 851 LIMITED - 1991-05-01
    Active Corporate (52 parents, 2 offsprings)
    Officer
    2001-03-30 ~ 2006-12-31
    IIF 26 - Director → ME
  • 27
    NATIONAL GRID PLC
    - now 04031152 02366977
    NATIONAL GRID TRANSCO PLC
    - 2005-07-26 04031152
    NATIONAL GRID GROUP PLC
    - 2002-10-21 04031152 02367004
    NEW NATIONAL GRID PLC
    - 2002-01-31 04031152
    INTERCEDE 1610 LIMITED - 2000-08-30
    Active Corporate (62 parents, 4 offsprings)
    Officer
    2001-03-30 ~ 2006-12-31
    IIF 29 - Director → ME
  • 28
    NATIONAL GRID TEN
    04341097
    Dissolved Corporate (27 parents)
    Officer
    2001-12-20 ~ 2003-01-31
    IIF 24 - Director → ME
  • 29
    NATIONAL GRID THREE LIMITED
    - now 03928169
    INTERCEDE 1544 LIMITED - 2000-03-13
    Dissolved Corporate (29 parents)
    Officer
    2001-03-30 ~ 2003-01-31
    IIF 25 - Director → ME
  • 30
    NATIONAL GRID TWELVE LIMITED
    04355616
    Active Corporate (34 parents)
    Officer
    2002-01-18 ~ 2003-01-31
    IIF 10 - Director → ME
  • 31
    NEO NEXT+ ENERGY E&P UK LIMITED - now
    TOTALENERGIES E&P UK LIMITED - 2026-03-30
    TOTAL E&P UK LIMITED - 2021-06-01
    TOTAL E&P UK PLC - 2007-01-15
    TOTALFINAELF EXPLORATION UK PLC
    - 2003-05-07 00811900
    TOTAL OIL MARINE P L C
    - 2000-06-29 00811900
    Active Corporate (80 parents, 1 offspring)
    Officer
    1994-11-25 ~ 2002-10-18
    IIF 32 - Director → ME
  • 32
    NEO NEXT+ ENERGY ELF UK LIMITED - now
    ELF EXPLORATION UK LIMITED - 2026-03-30
    ELF EXPLORATION UK PLC
    - 2007-01-15 00810743
    ELF UK PLC - 1992-07-01
    ELF OIL EXPLORATION AND PRODUCTION (U.K.) LIMITED - 1981-12-31
    Active Corporate (79 parents, 2 offsprings)
    Officer
    2002-03-15 ~ 2002-10-18
    IIF 34 - Director → ME
  • 33
    NEO NEXT+ ENERGY UK LIMITED - now
    TOTALENERGIES UPSTREAM UK LIMITED - 2026-03-30
    TOTAL UPSTREAM UK LIMITED - 2021-06-01
    TOTALFINAELF UPSTREAM UK LIMITED
    - 2003-05-14 02413951 02600099
    TOTAL COATINGS UK LIMITED - 2001-01-03
    ORKEM COATINGS UK LIMITED - 1991-09-02
    PRECIS (933) LIMITED - 1989-10-12
    Active Corporate (84 parents, 7 offsprings)
    Officer
    2002-03-15 ~ 2002-10-18
    IIF 33 - Director → ME
  • 34
    NGG TELECOMS HOLDINGS LIMITED
    - now 03703629
    INTERCEDE 1409 LIMITED - 1999-03-17
    Dissolved Corporate (33 parents)
    Officer
    2001-03-30 ~ 2003-01-31
    IIF 22 - Director → ME
  • 35
    NGG TELECOMS LIMITED
    - now 02536498
    GEMSTONE COMPUTERS LIMITED - 1997-11-17
    INTERCEDE 849 LIMITED - 1991-02-27
    Dissolved Corporate (33 parents)
    Officer
    2001-03-30 ~ 2003-01-31
    IIF 13 - Director → ME
  • 36
    THAMES POWER LIMITED
    - now 02208349 02624730
    INTERCEDE 514 LIMITED - 1988-02-24
    Dissolved Corporate (48 parents, 2 offsprings)
    Officer
    2011-01-18 ~ 2019-09-03
    IIF 5 - Director → ME
  • 37
    THAMES POWER SERVICES LIMITED
    - now 02624730 02208349
    GROVEHURST POWER LIMITED - 1992-01-13
    CENTRENOTICE LIMITED - 1991-08-09
    Active Corporate (42 parents)
    Officer
    2011-01-18 ~ 2018-12-14
    IIF 3 - Director → ME
  • 38
    THAMES VALLEY POWER LIMITED
    03041643
    Dissolved Corporate (52 parents)
    Officer
    2011-01-18 ~ dissolved
    IIF 7 - Director → ME
  • 39
    THE SPECIAL UTILITIES INVESTMENT TRUST PLC
    - now 02829844
    FOREIGN & COLONIAL SPECIAL UTILITIES INVESTMENT TRUST PLC
    - 2000-06-09 02829844
    SHAREISSUE PUBLIC LIMITED COMPANY - 1993-07-16
    Liquidation Corporate (21 parents)
    Officer
    1993-07-28 ~ 2006-11-30
    IIF 43 - Director → ME
  • 40
    UK POWER NETWORKS SERVICES (CONTRACTING) LIMITED - now
    EDF ENERGY (SERVICES) LIMITED - 2010-11-01
    LONDON ELECTRICITY SERVICES LIMITED
    - 2003-06-30 02228168 02228297... (more)
    LONDON ELECTRICITY LIMITED
    - 1989-04-01 02228168 02228297... (more)
    Active Corporate (34 parents)
    Officer
    (before 1992-11-22) ~ 1995-09-29
    IIF 39 - Director → ME
  • 41
    UK POWER NETWORKS SERVICES (ENTERPRISES) LIMITED - now
    EDF ENERGY (ENTERPRISES) LIMITED - 2010-11-01
    LONDON ELECTRICITY ENTERPRISES LIMITED
    - 2003-06-30 02611182
    Active Corporate (27 parents)
    Officer
    1992-09-28 ~ 1995-09-29
    IIF 36 - Director → ME
  • 42
    UTILICO INVESTMENT TRUST PLC
    04771660
    Dissolved Corporate (13 parents)
    Officer
    2003-06-10 ~ dissolved
    IIF 23 - Director → ME

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Contains public sector information retrieved at 14 July 2026 and licensed under the Open Government Licence v3.0.