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Company · London

Blue Transmission Walney 1 Limited

Transmission of electricity

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

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The large node is Blue Transmission Walney 1 Limited. Red nodes are organisations, white nodes are people. Sign in free to explore further.

Who leads it

Previous officers 14

  1. David Mark Holmes 2023-2024 Director View profile
  2. Matthew John Pitts 2018-2025 Director View profile
  3. Tomoyuki Okuda 2017-2018 Director View profile
  4. Satoshi Shimizu 2016-2017 Director View profile
  5. Gary Thornton 2014-2026 Director View profile
  6. Graham Farley 2013-2023 Director View profile
  7. Masami Saeki 2013-2014 Director View profile
  8. Michele Armanini 2012-2015 Director View profile
  9. Masanori Kohama 2011-2016 Director View profile
  10. Makoto Hattori 2011-2013 Director View profile
  11. Andrew David Clapp 2011-2013 Director View profile
  12. Tara Courtney Davies 2010-2011 Director View profile
  13. Matthias Alexander Reicherter 2010-2011 Director View profile
  14. Mark Jonathan Dooley 2010-2011 Director View profile

Directors and secretaries as filed at Companies House.

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About

What it does
Transmission of electricity
Incorporated
23/08/2010
Registered office
London
Previous names
Alnery NO. 2939 Limited (until 15/10/2010)

Ownership

Owned by (1) 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.

Group

  1. Blue Transmission Walney 1 Limited is controlled by Blue Transmission Walney 1 (Holdings) Limited
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register
  2. Blue Transmission Walney 1 (Holdings) Limited is controlled by Biif Holdco III Limited
    Evidence
    active 25-50% shares, 25-50% voting · notified 2016-04-06 · source: Companies House PSC register
  3. Biif Holdco III Limited is controlled by Biif Bidco Limited
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register
  4. Biif Bidco Limited is controlled by Biif Parentco Limited
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register
  5. Biif Parentco Limited is controlled by Biif Issuerco Limited
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register
  6. Biif Issuerco Limited is controlled by Biif Holdco Limited
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register
  7. Biif Holdco Limited is controlled by Biif GP Limited
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register
  8. Biif GP Limited is controlled by Bifm Investments Limited
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register
  9. Bifm Investments Limited is controlled by 3I Holdings PLC
    Evidence
    ceased 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06, ceased 2024-05-31 · source: Companies House PSC register
  10. 3I Holdings PLC is controlled by 3I Group PLC
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register

Ultimately controlled by 3I Group PLC.

312 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.

4 directors on the board

3.1y median 1.5y
average tenure
9.4y
longest tenure

Directors past 6 years

First-time vs portfolio directors

Portfolio (4)

0
also govern a charity

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.

Utilities 35Professional services 32Construction 23Business services 20Dormant 13Health and social care 6Finance 1Other 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.

Sources

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

Record details
Company number
07353265
Status
Active
Type
Private Limited Company
Accounts next due
31/12/2027
Edition
Register edition compiled 27th September 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

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