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Cash

£69K

USD 92,000

+1.1% highest in 3 filed years

Net assets

£27M

USD 35,579,000

+20% highest in 3 filed years

Employees

Average over period

Profit before tax

£2.8M

USD 3,688,000

+64.6% highest in 3 filed years

Accounts

3-year trend · Δ = latest vs prior filed period · latest reflected 2025-12-31

Metric Trend 2023-12-312024-12-312025-12-31 Δ vs prior
Turnover
Operating profit -£1,542,896-£1,971,852-£2,480,162 -25.8%
Profit before tax £2,061,686£1,676,898£2,760,892 +64.6%
Net profit £1,210,511£745,621£1,450,816 +94.6%
Cash £68,124£68,124£68,873 +1.1%
Total assets less current liabilities £21,444,078£22,189,699£26,634,975 +20%
Net assets £21,444,078£22,189,699£26,634,975 +20%
Equity £21,444,078£22,189,699£23,640,515 +6.5%
Average employees 00
Wages
Directors' remuneration £0£0

Figures converted to GBP from USD at 0.749 per USD (Frankfurter spot rate) — hover any figure for the original. indicates the figure wasn't present under that line item in that period. The Δ column is the change from the prior filed period as a percentage of |prior|; lines a company doesn't report show . About these numbers

Ratios

Computed from the line items above — sparklines read oldest → newest

Ratio Trend 2023-12-312024-12-312025-12-31
Return on capital employed -7.2%-8.9%-9.3%
Current ratio 26.30x25.32x11.64x

Gearing is liabilities over total assets. Current ratio is current assets over creditors falling due within one year. Interest cover is operating profit over absolute finance costs. Sector-distribution context coming next.

Name history

Renamed 2 times since incorporation

  1. GAS TURBINE EFFICIENCY LIMITED 2011-04-18 → present
  2. GAS TURBINE EFFICIENCY PLC 2005-11-22 → 2011-04-18
  3. GAS TURBINE EFFICIENCY LIMITED 2005-03-17 → 2005-11-22

Audit & accounting basis

Accounting basis
FRS 101
Reporting scope
Standalone (parent only)
Auditor
RSM UK Audit LLP
Audit opinion
Unqualified (clean)
Going concern
Affirmed

“The directors believe that preparing the financial statements on the going concern basis remains appropriate due to the continued financial support of the parent company, Ethos Energy Group Limited. The directors have received confirmation that Ethos Energy Group Limited intend to support the company for at least one year after these financial statements are signed.”

Group structure

  1. GAS TURBINE EFFICIENCY LIMITED · parent
    1. Gas Turbine Efficiency Sweden AB 100% · Sweden · designs, manufactures and supplies proprietary cleantech energy-saving and performance-enhancing solutions to the power generation & oil and gas industries
    2. Gas Turbine Efficiency Inc 100% · USA · designs, manufactures and supplies proprietary cleantech energy-saving and performance-enhancing solutions to the power generation & oil and gas industries
    3. Gas Turbine Efficiency LLC 100% · USA · designs, manufactures and supplies proprietary cleantech energy-saving and performance-enhancing solutions to the power generation & oil and gas industries
    4. Gas Turbine Efficiency AB 100% · Sweden · designs, manufactures and supplies proprietary cleantech energy-saving and performance-enhancing solutions to the power generation & oil and gas industries

Significant events

Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers

People

3 active · 25 resigned

Name Role Appointed Born Nationality
ELDER, Catherine Director 2014-08-22 Aug 1969 Irish
JESSIMAN, Scott Director 2020-02-20 Dec 1970 British
MUSE, Michael Joseph Director 2024-04-05 Aug 1973 American
Show 25 resigned officers
Name Role Appointed Resigned
BROWN, Robbie Secretary 2011-10-01 2014-05-06
HAMILTON, Hugh Campbell, Mr. Secretary 2005-11-15 2006-01-31
MCGREGOR, Alister James Secretary 2014-05-06 2020-02-20
NORDGREN, Magnus Secretary 2006-01-31 2006-04-11
LONDON REGISTRARS P.L.C. Corporate Secretary 2006-04-11 2011-10-01
WCPHD SECRETARIES LIMITED Corporate Secretary 2005-03-17 2005-11-15
AVERY, Frank Garfield Director 2011-10-01 2016-09-26
BRYANT, John Director 2005-06-21 2010-01-04
CAMERON, Charles Robert Macmartin Director 2008-04-15 2010-08-04
COLISTRA, Vincent Joseph Director 2011-04-18 2011-10-01
DOBLER, Mark Stephen Director 2012-06-29 2014-08-22
DOTTS, Kevin Mark Director 2009-11-04 2010-04-02
GRANT, John Albert Martin Director 2010-01-04 2011-10-01
LAGARHUS, Otto Director 2005-06-21 2011-04-18
MAPPLEBECK, John Richard Director 2010-08-04 2011-10-01
MOWINCKEL, Frederik Wilhelm Director 2011-04-18 2011-10-01
NORDGREN, Magnus Fredrik Director 2005-06-21 2009-11-04
PAPWORTH, Mark Harry Director 2011-10-01 2012-06-29
RITCHIE, Amanda Denise Director 2020-02-20 2021-11-15
TELANDER, Gunnar Frederic Gabriel Director 2005-03-17 2008-05-29
TELANDER, Jan Gunnar Gunnarsson Director 2005-03-17 2008-05-29
WARE, Michael Daniel Director 2011-04-26 2011-10-01
WATSON, Christopher Edward Milne Director 2011-10-01 2020-02-20
ZIKE, Harry Walter Director 2010-07-01 2011-10-01
ZWOLINSKI, Steven Edward Director 2005-10-04 2024-04-05

Ownership

Persons with significant control

Name Kind Nature of control Notified Status
Ethos Energy Group Limited Corporate entity Shares 75–100%, Voting 75–100%, Appoints directors 2016-04-06 Active

Filing timeline

Last 20 of 211 total filings

Material constitutional events — rename, articles re-file, resolution

  • 2026-06-22 RESOLUTIONS Resolution
  • 2025-03-14 MA Memorandum articles
  • 2025-03-14 RESOLUTIONS Resolution
Date Type Category Description
2026-06-24 AA accounts Accounts with accounts type full
2026-06-22 SH20 capital Legacy
2026-06-22 CAP-SS insolvency Legacy
2026-06-22 RESOLUTIONS resolution Resolution
2026-05-12 SH01 capital Capital allotment shares PDF
2026-03-19 CS01 confirmation-statement Confirmation statement with no updates PDF
2026-01-15 AD01 address Change registered office address company with date old address new address PDF
2025-05-29 AA accounts Accounts with accounts type full
2025-03-17 CS01 confirmation-statement Confirmation statement with no updates PDF
2025-03-14 MA incorporation Memorandum articles
2025-03-14 RESOLUTIONS resolution Resolution
2025-03-11 MR01 mortgage Mortgage create with deed with charge number charge creation date PDF
2025-03-11 MR01 mortgage Mortgage create with deed with charge number charge creation date PDF
2025-03-10 MR01 mortgage Mortgage create with deed with charge number charge creation date PDF
2025-03-10 MR01 mortgage Mortgage create with deed with charge number charge creation date PDF
2025-02-06 PSC05 persons-with-significant-control Change to a person with significant control PDF
2024-05-14 AA accounts Accounts with accounts type full
2024-04-30 PSC05 persons-with-significant-control Change to a person with significant control PDF
2024-04-08 AP01 officers Appoint person director company with name date PDF
2024-04-08 TM01 officers Termination director company with name termination date PDF

Public-record activity

Raw counts from Companies House — last 12–24 months

Filings
7

last 12 months

Capital events
2

last 24 months

Officers appointed
0

last 12 months

Officers resigned
0

last 12 months

Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.

Official Companies House page