THE CARBON TRUST

Active
Company number 04190230Private company limited by guaranteeIncorporated 2001

Key figures

£18,653,000-5.0%
Net assets 2025/26
-5.0%
Average annual change 2024/25–2025/26
05 m10 m15 m20 m2024/252025/26

† THE CARBON TRUST filed these accounts on paper, so Companies House publishes them only as a scanned image. The figures for the years marked † were read automatically from the scan and kept only where the statements add up (for example net assets equal total equity), but a reading error is still possible — check the original accounts at Companies House.

Ratios

2025/26

Sector comparison

SIC 74901

Where the company stands among the 7,781 active companies whose first SIC code is 74901 (Environmental consulting activities).

Turnover£54,058,000
Higher than 95% · median £74,578 among 232 that publish turnover
Net assets£18,653,000
Higher than 99% · median £11,977
Total assets£48,820,000
Higher than 99% · median £40,837
Cash£37,042,000
Higher than 99% · median £27,569
Company age25.6 years
Older than 96% · median 5.5 years
Largest in this sector by net assets
  1. AECOM INFRASTRUCTURE & ENVIRONMENT UK LIMITED£185.5m
  2. CLIENTEARTH£41.7m
  3. SLR CONSULTING LIMITED£34.1m
  4. AURORA ENERGY RESEARCH LIMITED£29.3m
  5. DORSET WILDLIFE TRUST£27m
  6. CLIMATE IMPACT PARTNERS LIMITED£25.4m
  7. WORN AGAIN TECHNOLOGIES LIMITED£18.8m
  8. THE CARBON TRUST£18.7m
  9. EXPONENT INTERNATIONAL LIMITED£16.8m
  10. SYSTEMIQ LIMITED£15.8m

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 7,781. The line on each bar marks the median.

Summary: THE CARBON TRUST

What kind of company is it?

THE CARBON TRUST is a private company limited by guarantee registered with Companies House under company number 04190230. It was incorporated on 29 Mar 2001. Its status is active. The registered office is in London (SE1). Its nature of business (SIC 2007) is environmental consulting activities (74901), other professional, scientific and technical activities n.e.c. (74909).

How is the company doing financially?

The latest accounts in the database are for 2025/26 (period ending 31 Mar 2026); the company files group accounts. Turnover was £54,058,000. Net assets were £18,653,000, down 5% on the previous year. Cash at bank and in hand was £37,042,000. Total assets were £48,820,000 and total liabilities £28,826,000. Figures are available for 2 financial years (2024/25–2025/26).

How does it compare with similar companies?

Compared with 7,781 active companies whose first SIC code is 74901: By turnover it ranks higher than 95% of the 232 that publish turnover (median £74,578). By net assets it ranks higher than 99% of them (median £11,977). By total assets it ranks higher than 99% of them (median £40,837). By cash it ranks higher than 99% of them (median £27,569). It is older than 96% of them (median age 5.5 years).

Does it supply the public sector?

The company is named as a supplier in 19 public contract award notices from 18 public sector buyers since 2015. Contracts awarded to it alone have a combined published value of £12m. Its most frequent buyer is Welsh Government (2 contracts). 3 of the awards are shared with other suppliers, typically framework agreements.

What do public registers and reports show?

It appears on the Home Office register of licensed sponsors (Skilled Worker). In its latest payment practices report it took an average of 15 days to pay suppliers, and 5% of invoices were not paid within agreed terms. Its gender pay gap report for 2025/26 shows median hourly pay for women 7.4% lower than for men.

When are its next filings due?

The next accounts are due by 31 Dec 2027. The next confirmation statement is due by 9 Apr 2027.

Filed accounts2024/25–2025/26
2024/25 †2025/26 †
Turnover59,980,00054,058,000
Profit for the year-95,000—
Cash at bank and in hand31,215,00037,042,000
Total assets54,106,00048,820,000
Total liabilities34,118,00028,826,000
Net assets / total equity19,628,00018,653,000

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.

Public contracts

19 contracts

THE CARBON TRUST is named as a supplier in 19 public contract award notices from 18 public sector buyers since 2015. The 16 contracts awarded to it alone with a published value add up to £12m. 3 awards are shared with other suppliers and not counted in that total.

Contracts per year
Main buyers18
Welsh Government
2 contracts · £2m
The Department for Business, Energy and Industrial Strategy (BEIS)
1 contract · £8.5m
Department for Energy Security and Net Zero
1 contract · £479.9k
North Lincolnshire Council
1 contract · £187.2k
Northumberland County Council
1 contract · £162k
Contracts
  1. UKRI-5042 NERC - Re-certification assessment against the Taking Action tier of the Carbon Trust’s Route to Net Zero Standard‡UK Research & Innovation · £29,000
  2. The provision of a Road Map for achieving a Net Zero Carbon Borough in Basingstoke and DeaneBasingstoke & Deane Borough Council · £57,350
  3. THE OWA TALL FLOATING LIDAR SYSTEM TRIAL FOR OFFSHORE WIND DISCRETIONARY PROJECT CONSORTIUM AGREEMENTThe Crown Estate · £105,000
  4. Public Sector Decarbonisation Delivery Plan‡Llywodraeth Cymru / Welsh Government · £91,069
  5. Energy Catalyst Round 9 Evaluation WorkUK SHARED BUSINESS SERVICES LIMITED · £25,000
Show 14 more
  1. ENERGY INNOVATION NEEDS ASSESSMENTS 2.0‡Department for Energy Security and Net Zero · £479,881
  2. Energy Service Delivery Plan year 1‡Welsh Government · £1,666,265
  3. Welsh Government Energy Service (Lot 1) - Mobilisation and Management of Low Carbon Heat Grant‡Welsh Government · £348,068
  4. SCoE Emissions pathway, Action planning and Annual reporting‡DEFRA · £100,000
  5. Net Zero Innovation Portfolio – Green Home Finance Accelerator: Delivery Support Contract - Full Programme Management Services‡Department for Business, Energy & Industrial Strategy · shared by 3 suppliers, up to £1,220,125 in total
  6. A Green Future‡North Lincolnshire Council · £187,200 · runs until Apr 2030
  7. Acceleration Support Services to the BEIS Net Zero Innovation Portfolio‡The Department for Business, Energy and Industrial Strategy (BEIS) · £8,500,350
  8. Borderlands Strategic Low Carbon Energy Master Plan V2‡Northumberland County Council · £162,026 · 2 lots
  9. Roadmap for the Decarbonisation of the European Recreational Marine Craft Sector - Awarded‡Foreign Commonwealth and Development Office · £52,980
  10. Liverpool Docks Heat Network - Detailed Project Development (2 lots)‡Liverpool City Council · £60,000
  11. Green Finance Scoping StudyDEPARTMENT FOR INTERNATIONAL TRADE · £37,300
  12. Energy-Related Technical Consultancy Advice Framework Agreement‡Ofgem · shared by 49 suppliers, up to £1,500,000 in total
  13. BEIS Sustainable Infrastructure Programme Asia (‡Business Energy and Industrial Strategy · £125,218
  14. TRN No. 1043/07/2015 - Evidence Gathering – Low Carbon Heating Technologies‡DEPARTMENT OF ENERGY AND CLIMATE CHANGE · shared by 2 suppliers, up to £112,485 in total

From contract award notices on Contracts Finder (since 2016) and Find a Tender (since 2021), published by the Cabinet Office under the Open Government Licence v3.0. Values are as published by the buyer and usually cover the whole contract term; the total leaves out awards shared between several suppliers, where the published figure is a ceiling for all of them, placeholder values and single figures of £1 billion or more. Notices marked ‡ do not state a company number and were linked by an exact match on the registered name. Contracts below the publication thresholds and those of devolved buyers that publish elsewhere are not included.

Statutory reporting

Payment practices1 Apr 2026 – 30 Sep 2026
Average time taken to pay invoices
15 days
Invoices not paid within agreed terms
5%
  • Within 30 days 95%
  • 31 to 60 days 4%
  • After 60 days 1%
Earlier periods (6)
Period ending
Days to pay
Within 30 days
Late
31 Mar 2026
17
93%
7%
30 Sep 2025
16
93%
7%
31 Mar 2025
16
87%
13%
30 Sep 2024
18
93%
7%
31 Mar 2024
18
90%
10%
30 Sep 2023
17
92%
8%

View the latest report on GOV.UK

Gender pay gap2025/26
Median hourly pay
women 7.4% lower
Mean hourly pay
women 12.2% lower
Median bonus pay
women 16.5% lower
Employer size
250 to 499 employees
Lower pay quarter55% womenLower middle60% womenUpper middle49% womenUpper pay quarter42% women
Earlier years (3)
Year
Median hourly pay
Mean hourly pay
2024/25
women 14.8% lower
women 14.4% lower
2023/24
women 15.5% lower
women 20.1% lower
2022/23
women 16.3% lower
women 18.5% lower

A positive gap means women's average hourly pay is lower than men's across the whole employer; it is not a comparison of pay for the same work. View on the Gender pay gap service

Figures the company reported itself to the government's Check payment practices service, Gender pay gap service and Modern slavery statement registry (Open Government Licence v3.0). Only large companies and employers with 250 or more staff have to report, so most companies have nothing here.

Registers and licences

Sponsor licence‡
Licence type and rating
Worker (A rating)
Route
Skilled Worker

On the Home Office register of licensed sponsors, which lists organisations licensed to sponsor workers from overseas.

Sources: Charity Commission for England and Wales, Care Quality Commission, Home Office and HM Revenue & Customs, under the Open Government Licence v3.0. Entries marked ‡ come from lists that do not state a company number and were linked by an exact match on the registered name.

History

3 events
  1. Financial year 2025/26 endedAccounts: turnover £54.1m, net assets £18.7m
  2. Financial year 2024/25 endedAccounts: turnover £60m, net assets £19.6m
  3. Company incorporatedPrivate company limited by guarantee

Dates as recorded at Companies House: incorporation, name changes, officer appointments and resignations, current persons with significant control, and the end of each financial year with figures in the database. Former persons with significant control are not listed.