TREF NO. 1 LIMITED

Active
Company number 05814263Private limited companyIncorporated 2006

Key figures

£1,171,014-3.8%
Net assets 2025
-14.3%
Average annual change 2021–2025
01 m2 m3 m20212022202320242025

Like most small UK companies, TREF NO. 1 LIMITED does not publish a profit and loss account in its latest accounts. The figures below come from the balance sheet.

Ratios

2025

Sector comparison

SIC 35110

Where the company stands among the 10,500 active companies whose first SIC code is 35110 (Production of electricity).

Net assets£1,171,014
Higher than 78% · median £26,000
Total assets£5,831,807
Higher than 80% · median £774,149
Cash£135,544
Higher than 59% · median £85,066
Employees2
Higher than 75% · median 0
Company age20.5 years
Older than 95% · median 8.5 years
Largest in this sector by net assets
  1. ORSTED POWER (UK) LIMITED£5.7bn
  2. EDF ENERGY NUCLEAR GENERATION LIMITED£4.1bn
  3. CENTRICA PLC£3.5bn
  4. EDF ENERGY LIMITED£2.5bn
  5. DRAX POWER LIMITED£2.4bn
  6. RWE GENERATION UK PLC£2.1bn
  7. RWE RENEWABLES UK SWINDON LIMITED£1.7bn
  8. VATTENFALL WIND POWER LTD£1.7bn
  9. LIGHTSOURCE TITAN LIMITED£1.5bn
  10. EDF ENERGY NUCLEAR GENERATION GROUP LIMITED£993m

Positions are approximate. Figures come from each company's latest accounts; money and employee figures are compared only with companies that filed accounts in pounds for a period ending in the last two and a half years and are not dormant, so those groups are smaller than 10,500. The line on each bar marks the median.

Summary: TREF NO. 1 LIMITED

What kind of company is it?

TREF NO. 1 LIMITED is a private limited company registered with Companies House under company number 05814263. It was incorporated on 11 May 2006. Its status is active. The registered office is in London (WC2R). Its nature of business (SIC 2007) is production of electricity (35110).

How is the company doing financially?

The latest accounts in the database are for 2025 (period ending 31 Dec 2025); the company files small company accounts. Net assets were £1,171,014, down 3.8% on the previous year. Cash at bank and in hand was £135,544. Total assets were £5,831,807 and total liabilities £4,359,972. The company had an average of 2 employees. Figures are available for 5 financial years (2021–2025).

How does it compare with similar companies?

Compared with 10,500 active companies whose first SIC code is 35110: By net assets it ranks higher than 78% of them (median £26,000). By total assets it ranks higher than 80% of them (median £774,149). By cash it ranks higher than 59% of them (median £85,066). By number of employees it ranks higher than 75% of them (median 0). It is older than 95% of them (median age 8.5 years).

Who runs and controls the company?

The company has 2 current directors.

When are its next filings due?

The next accounts are due by 30 Sep 2027. The next confirmation statement is due by 21 Jun 2027.

Filed accounts2021–2025
20212022202320242025
Cash at bank and in hand196,851218,768167,004148,650135,544
Total assets7,200,7507,116,2686,986,4136,162,4735,831,807
Total liabilities5,030,3235,276,9425,358,7884,662,3364,359,972
Net assets / total equity2,170,4271,590,2921,362,4041,217,6761,171,014
Average number of employees22222

A dash (—) means no accounts were filed for that year or the item is not in the accounts; 0 is a zero stated in the accounts. Small companies usually file only a balance sheet, so the profit and loss account is often missing.

Principal activity

Accounts 2025

Operation of a windfarm

As described in the company's latest filed accounts.

History

28 events
  1. Financial year 2025 endedAccounts: net assets £1.2m, 2 employees
  2. Matthew Richard HUBBARD resignedDirector
  3. Nauman Yousaf TOOR appointedDirector
  4. Financial year 2024 endedAccounts: net assets £1.2m, 2 employees
  5. Financial year 2023 endedAccounts: net assets £1.4m, 2 employees
  6. Financial year 2022 endedAccounts: net assets £1.6m, 2 employees
  7. Financial year 2021 endedAccounts: net assets £2.2m, 2 employees
  8. Matthew Derek George RIDLEY resignedDirector
Earlier events (20)
  1. Matthew Richard HUBBARD appointedDirector
  2. Salomon John FAYE resignedDirector
  3. Sebastian Laurence Grenville WATSON appointedDirector
  4. Temporis Renewable Energy Lp registered as a person with significant control
  5. Temporis Renewable Energy Lp ceased to be a person with significant control
  6. Name changed to TREF NO. 1 LIMITEDPreviously BOLSTERSTONE INNOVATIVE ENERGY (HOLSWORTHY) LIMITED
  7. Gillianne LEEDALE resignedSecretary
  8. David Michael CORKER resignedDirector
  9. Peter David SWALLOW resignedDirector
  10. Salomon John FAYE appointedDirector
  11. Matthew Derek George RIDLEY appointedDirector
  12. Name changed to BOLSTERSTONE INNOVATIVE ENERGY (HOLSWORTHY) LIMITEDPreviously BOLSTERSTONE INNOVATIVE ENERGY (NUMBER THREE) LIMITED
  13. Irene Lesley HARRISON resignedSecretary
  14. BUSINESS INFORMATION RESEARCH & REPORTING LTD resignedDirector (corporate)
  15. Irene Lesley HARRISON appointedSecretary
  16. Gillianne LEEDALE appointedSecretary
  17. David Michael CORKER appointedDirector
  18. Peter David SWALLOW appointedDirector
  19. BUSINESS INFORMATION RESEARCH & REPORTING LTD appointedDirector (corporate)
  20. Company incorporatedPrivate limited company

Dates as recorded at Companies House: incorporation, name changes, officer appointments and resignations, current and former persons with significant control, and the end of each financial year with figures in the database.