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UK company intelligence
Company Active LTD

Company profile

Blue Transmission Walney 1 Limited

UK company 07353265, incorporated on 23 August 2010.

Blue Transmission Walney 1 Limited is a UK company with status Active founded in 2010 based in London.

Company number
07353265
Incorporated
23 Aug 2010
Companies House status
Active

Company identity

Founded / incorporated
23 August 2010

Company number 07353265

Verify at Companies House
Legal name
BLUE TRANSMISSION WALNEY 1 LIMITED
Company type
Private Limited Company
Region
London
Registered address
8TH FLOOR
6 KEAN STREET
LONDON
UNITED KINGDOM
WC2B 4AS
Insolvency history
No

Corporate ownership

Updated 07 Jul 2026 09:49

8 levels 2 ultimate controllers
1
Company Active LTD
Blue Transmission Walney 1 Limited
CRN 07353265
2
Direct controller Active LTD
Blue Transmission Walney 1 (Holdings) Limited
CRN 07353250
3
Intermediate controller Active LTD
Biif Holdco III Limited
CRN 08232095
4
Intermediate controller Active LTD
Diamond Transmission UK Limited
CRN 12280960
5
Intermediate controller Active LTD
Biif Bidco Limited
CRN 06704479
6
Intermediate controller Active LTD
DTUK Blk Bidco Holdings Ltd
CRN 15848613
7
Intermediate controller Active LTD
Biif Parentco Limited
CRN 06704777
8
Intermediate controller Active LTD
Blackrock Evergreen Infrastructure UK Holdings Limited
CRN 15133626
9
Intermediate controller Active LTD
Biif Issuerco Limited
CRN 06590759
10
Ultimate controller
B270333
CRN B270333
11
Intermediate controller Active LTD
Biif Holdco Limited
CRN 06704550
12
Intermediate controller Active LTD
Biif GP Limited
CRN 04836947
13
Ultimate controller Active LTD
3I Bifm Investments Limited
CRN 06949026

Company events

Reference milestones and recent Companies House filing stream events.

5 events
31 Dec
2027

Accounts due

Accounts Due

Next accounts due date

18 Oct
2026

Confirmation statement due

Confirmation Due

Next confirmation statement due date

31 Mar
2026

Accounts filed

Accounts

Last accounts made up date

04 Oct
2025

Confirmation statement filed

Confirmation

Last confirmation statement made up date

23 Aug
2010

Incorporated

Inception

Company registered at Companies House