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Company

GAS Turbine Efficiency Limited

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Official record Companies House · updated 4th October 2026 · Sources

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The large node is GAS Turbine Efficiency Limited. Red nodes are organisations, white nodes are people. Sign in free to explore further.

Who leads it

Previous officers 24

  1. Amanda Denise Ritchie 2020-2021 Director View profile
  2. Mark Stephen Dobler 2012-2014 Director View profile
  3. Christopher Edward Milne Watson 2011-2020 Director View profile
  4. Mark Harry Papworth 2011-2012 Director View profile
  5. Frank Garfield Avery 2011-2016 Director View profile
  6. Michael Daniel Ware 2011-2011 Director View profile
  7. Frederik Wilhelm Mowinckel 2011-2011 Director View profile
  8. Vincent Joseph Colistra 2011-2011 Director View profile
  9. John Richard Mapplebeck 2010-2011 Director View profile
  10. Harry Walter Zike 2010-2011 Director View profile
  11. John Albert Martin Grant 2010-2011 Director View profile
  12. Kevin Mark Dotts 2009-2010 Director View profile
  13. Charles Robert Macmartin Cameron 2008-2010 Director View profile
  14. Steven Edward Zwolinski 2005-2024 Director View profile
  15. Otto Lagarhus 2005-2011 Director View profile
  16. John Bryant 2005-2010 Director View profile
  17. Magnus Fredrik Nordgren 2005-2009 Director View profile
  18. Jan Gunnar Gunnarsson Telander 2005-2008 Director View profile
  19. Gunnar Frederic Gabriel Telander 2005-2008 Director View profile
  20. Alister James Mcgregor 2014-2020 Secretary View profile
  21. Robbie Brown 2011-2014 Secretary View profile
  22. Magnus Nordgren 2006-2006 Secretary View profile
  23. Hugh Campbell Hamilton 2005-2006 Secretary View profile
  24. Wcphd Secretaries Limited 2005-2005 Corporate-secretary View profile

Directors and secretaries as filed at Companies House.

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About

Incorporated
17/03/2005

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. GAS Turbine Efficiency Limited is controlled by Ethos Energy Group Limited
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register
  2. Ethos Energy Group Limited is controlled by OEP Emerald Bidco Limited
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2024-12-31 · source: Companies House PSC register
  3. OEP Emerald Bidco Limited is controlled by OEP Emerald Midco Limited
    Evidence
    active 75-100% shares, 75-100% voting, appoints directors · notified 2024-08-15 · source: Companies House PSC register

Ultimately controlled by OEP Emerald Midco Limited.

11 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.

3 directors on the board

6.9y median 6.4y
average tenure
11.9y
longest tenure

Directors past 6 years

First-time vs portfolio directors

Portfolio (3)

0
also govern a charity
0
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.

Manufacturing 6Professional 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.

Gaps to watch

  • Several long-serving directors could step down together

Where to look Suggested search: succession planning for long-tenured seats.

Sources

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

Record details
Company number
05396081
Status
Active
Type
Private Limited Company
Edition
Register edition compiled 4th October 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

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