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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

Calvert, Ian Robert

    Related profiles found in government register
  • Calvert, Ian Robert
    British chemical engineer born in March 1965

    Resident in England

    Registered addresses and corresponding companies

    • icon of address 19 Saintbury Drive, Solihull, West Midlands, B91 3SZ

      IIF 1

    • icon of address Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire, SN5 6PB

      IIF 2

    • icon of address Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire, SN5 6PB, England

      IIF 3

    • icon of address Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire, SN5 6PB

      IIF 4

    • icon of address Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire, SN5 6PB, England

      IIF 5
  • Calvert, Ian Robert
    British chief executive born in March 1965

    Resident in England

    Registered addresses and corresponding companies

    • icon of address 10, Dean Farrar Street, London, SW1H 0DX, England

      IIF 6
  • Calvert, Ian Robert
    British director born in March 1965

    Resident in England

    Registered addresses and corresponding companies

    • icon of address 10 Dean Farrar Street, 6th Floor, London, SW1H 0DX, England

      IIF 7

    • icon of address 6th Floor, 10 Dean Farrar Street, London, SW1H 0DX, England

      IIF 8

    • icon of address 6th Floor, Heron House, 10 Dean Farrar Street, London, SW1H 0DX

      IIF 9
  • Calvert, Ian Robert

    Registered addresses and corresponding companies

    • icon of address 10, Dean Farrar Street, London, SW1H 0DX, England

      IIF 10

    • icon of address Heron House, 10 Dean Farrar Street, 6th Floor, London, SW1H 0DX

      IIF 11
child relation
Offspring entities and appointments
Active 0
  • Not found in our database.
Ceased 9
  • 1
    ASSOCIATION FOR THE CONSERVATION OF ENERGY - 2017-11-30
    icon of address 10 Dean Farrar Street, London, England
    Active Corporate (1 parent)
    Equity (Company account)
    0 GBP2025-03-31
    Officer
    icon of calendar 2020-07-28 ~ 2022-03-10
    IIF 6 - Director → ME
    icon of calendar 2020-10-30 ~ 2022-03-10
    IIF 10 - Secretary → ME
  • 2
    ASSOCIATION FOR DECENTRALISED ENERGY LTD - 2017-01-31
    icon of address 6th Floor Heron House, 10 Dean Farrar Street, London
    Active Corporate (1 parent)
    Equity (Company account)
    0 GBP2024-12-31
    Officer
    icon of calendar 2019-12-04 ~ 2022-03-10
    IIF 9 - Director → ME
  • 3
    icon of address 6th Floor 10 Dean Farrar Street, London, England
    Active Corporate (9 parents)
    Equity (Company account)
    85,622 GBP2024-03-31
    Officer
    icon of calendar 2020-02-14 ~ 2022-03-11
    IIF 8 - Director → ME
  • 4
    icon of address C/o Ade, 10 Dean Farrar Street, 6th Floor, London, England
    Active Corporate (9 parents)
    Equity (Company account)
    302,183 GBP2024-03-31
    Officer
    icon of calendar 2020-02-17 ~ 2022-01-31
    IIF 7 - Director → ME
  • 5
    RWE NPOWER RENEWABLES (TULLIS RUSSELL) LIMITED - 2009-06-30
    FIFE NESS OFFSHORE WIND FARM LIMITED - 2009-05-01
    RWE NPOWER RENEWABLES (MARKINCH) LIMITED - 2014-01-31
    GLACIUS NO.2 LIMITED - 2008-10-13
    RWE INNOGY MARKINCH LIMITED - 2016-05-04
    icon of address Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire, England
    Active Corporate (5 parents)
    Officer
    icon of calendar 2010-08-16 ~ 2019-12-21
    IIF 5 - Director → ME
  • 6
    INNOGY RENEWABLES UK HOLDINGS LIMITED - 2020-09-02
    RWE INNOGY UK HOLDINGS LIMITED - 2016-09-01
    RWE INNOGY (UK) LIMITED - 2014-01-31
    icon of address Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire
    Active Corporate (8 parents, 2 offsprings)
    Officer
    icon of calendar 2012-02-27 ~ 2015-12-31
    IIF 3 - Director → ME
  • 7
    NPOWER RENEWABLES LIMITED - 2009-03-02
    RWE NPOWER RENEWABLES LIMITED - 2014-01-31
    VALUEKEEP LIMITED - 1991-08-19
    INNOGY RENEWABLES UK LIMITED - 2020-09-01
    RWE INNOGY UK LIMITED - 2016-09-01
    NATIONAL WIND POWER LIMITED - 2004-06-01
    icon of address Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire
    Active Corporate (9 parents)
    Officer
    icon of calendar 2012-02-27 ~ 2015-12-31
    IIF 2 - Director → ME
  • 8
    RWE NPOWER RENEWABLES (STALLINGBOROUGH) LIMITED - 2014-01-31
    HELIUS ENERGY ALPHA LIMITED - 2009-01-19
    RWE INNOGY STALLINGBOROUGH LIMITED - 2016-09-01
    RWE INNOGY BIOPOWER (STALLINGBROUGH) LIMITED - 2009-04-28
    INNOGY STALLINGBOROUGH LIMITED - 2020-09-01
    icon of address Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire
    Dissolved Corporate (2 parents)
    Officer
    icon of calendar 2010-08-16 ~ 2019-12-31
    IIF 4 - Director → ME
  • 9
    COMBINED HEAT AND POWER ASSOCIATION - 2017-01-31
    DISTRICT HEATING ASSOCIATION - 1983-11-07
    icon of address Heron House 10 Dean Farrar Street, 6th Floor, London
    Active Corporate (11 parents)
    Equity (Company account)
    1,206,159 GBP2024-03-31
    Officer
    icon of calendar 2007-11-15 ~ 2020-03-01
    IIF 1 - Director → ME
    icon of calendar 2020-03-01 ~ 2022-03-02
    IIF 11 - Secretary → ME

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