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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

Calvert, Ian Robert

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

    Resident in England

    Registered addresses and corresponding companies
    • 6th Floor, 10 Dean Farrar Street, London, SW1H 0DX, England

      IIF 1
  • Calvert, Ian Robert
    British chemical engineer born in March 1965

    Resident in England

    Registered addresses and corresponding companies
    • 19 Saintbury Drive, Solihull, West Midlands, B91 3SZ

      IIF 2
    • Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire, SN5 6PB

      IIF 3
    • Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire, SN5 6PB, England

      IIF 4
    • Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire, SN5 6PB

      IIF 5
    • Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire, SN5 6PB, England

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

    Resident in England

    Registered addresses and corresponding companies
    • 10, Dean Farrar Street, London, SW1H 0DX, England

      IIF 7
  • Calvert, Ian Robert
    British director born in March 1965

    Resident in England

    Registered addresses and corresponding companies
    • 10 Dean Farrar Street, 6th Floor, London, SW1H 0DX, England

      IIF 8
    • 6th Floor, Heron House, 10 Dean Farrar Street, London, SW1H 0DX

      IIF 9
  • Calvert, Ian Robert

    Registered addresses and corresponding companies
    • 10, Dean Farrar Street, London, SW1H 0DX, England

      IIF 10
    • Heron House, 10 Dean Farrar Street, 6th Floor, London, SW1H 0DX

      IIF 11
child relation
Offspring entities and appointments 9
  • 1
    ASSOCIATION FOR THE CONSERVATION OF ENERGY LIMITED
    - now 01650772
    ASSOCIATION FOR THE CONSERVATION OF ENERGY - 2017-11-30
    10 Dean Farrar Street, London, England
    Active Corporate (38 parents)
    Officer
    2020-07-28 ~ 2022-03-10
    IIF 7 - Director → ME
    2020-10-30 ~ 2022-03-10
    IIF 10 - Secretary → ME
  • 2
    COMBINED HEAT AND POWER ASSOCIATION LTD
    - now 09342307 00917116
    ASSOCIATION FOR DECENTRALISED ENERGY LTD - 2017-01-31
    6th Floor Heron House, 10 Dean Farrar Street, London
    Active Corporate (4 parents)
    Officer
    2019-12-04 ~ 2022-03-10
    IIF 9 - Director → ME
  • 3
    FLEX ASSURE LIMITED
    11652552
    6th Floor 10 Dean Farrar Street, London, England
    Active Corporate (15 parents)
    Officer
    2020-02-14 ~ 2022-03-11
    IIF 1 - Director → ME
  • 4
    HEAT CUSTOMER PROTECTION LTD
    09456667
    C/o Ade, 10 Dean Farrar Street, 6th Floor, London, England
    Active Corporate (19 parents)
    Officer
    2020-02-17 ~ 2022-01-31
    IIF 8 - Director → ME
  • 5
    RWE MARKINCH LIMITED
    - now 06574689
    RWE INNOGY MARKINCH LIMITED
    - 2016-05-04 06574689
    RWE NPOWER RENEWABLES (MARKINCH) LIMITED
    - 2014-01-31 06574689
    RWE NPOWER RENEWABLES (TULLIS RUSSELL) LIMITED - 2009-06-30
    FIFE NESS OFFSHORE WIND FARM LIMITED - 2009-05-01
    GLACIUS NO.2 LIMITED - 2008-10-13
    Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire, England
    Active Corporate (26 parents)
    Officer
    2010-08-16 ~ 2019-12-21
    IIF 6 - Director → ME
  • 6
    RWE RENEWABLES UK HOLDINGS LIMITED - now
    INNOGY RENEWABLES UK HOLDINGS LIMITED - 2020-09-02
    RWE INNOGY UK HOLDINGS LIMITED
    - 2016-09-01 06451278 03987817
    RWE INNOGY (UK) LIMITED
    - 2014-01-31 06451278 02550622
    Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire
    Active Corporate (39 parents, 2 offsprings)
    Officer
    2012-02-27 ~ 2015-12-31
    IIF 4 - Director → ME
  • 7
    RWE RENEWABLES UK SWINDON LIMITED - now
    INNOGY RENEWABLES UK LIMITED - 2020-09-01
    RWE INNOGY UK LIMITED
    - 2016-09-01 02550622 06451278
    RWE NPOWER RENEWABLES LIMITED
    - 2014-01-31 02550622 05538304
    NPOWER RENEWABLES LIMITED - 2009-03-02
    NATIONAL WIND POWER LIMITED - 2004-06-01
    VALUEKEEP LIMITED - 1991-08-19
    Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire
    Active Corporate (59 parents, 51 offsprings)
    Officer
    2012-02-27 ~ 2015-12-31
    IIF 3 - Director → ME
  • 8
    RWE STALLINGBOROUGH LIMITED - now
    INNOGY STALLINGBOROUGH LIMITED
    - 2020-09-01 06269884
    RWE INNOGY STALLINGBOROUGH LIMITED
    - 2016-09-01 06269884
    RWE NPOWER RENEWABLES (STALLINGBOROUGH) LIMITED
    - 2014-01-31 06269884
    RWE INNOGY BIOPOWER (STALLINGBROUGH) LIMITED - 2009-04-28
    HELIUS ENERGY ALPHA LIMITED - 2009-01-19
    Windmill Hill Business Park, Whitehill Way, Swindon, Wiltshire
    Dissolved Corporate (12 parents)
    Officer
    2010-08-16 ~ 2019-12-31
    IIF 5 - Director → ME
  • 9
    THE ASSOCIATION FOR DECENTRALISED ENERGY
    - now 00917116 09342307
    COMBINED HEAT AND POWER ASSOCIATION
    - 2017-01-31 00917116 09342307
    DISTRICT HEATING ASSOCIATION - 1983-11-07
    Heron House 10 Dean Farrar Street, 6th Floor, London
    Active Corporate (116 parents)
    Officer
    2007-11-15 ~ 2020-03-01
    IIF 2 - Director → ME
    2020-03-01 ~ 2022-03-02
    IIF 11 - Secretary → ME

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Contains public sector information retrieved at 22 March 2026 and licensed under the Open Government Licence v3.0.