CSX SUSTAINABLE ENGINEERING LTD

Active
Company number 00810704Private limited companyIncorporated 1964

Key figures

£210,301+3,639.3%
Net assets 2025/26
+100.4%
Average annual growth 2020–2025/26
0100 k200 k300 k202020212022202320242025/26

Like most small UK companies, CSX SUSTAINABLE ENGINEERING LTD does not publish a profit and loss account in its latest accounts. The figures below come from the balance sheet.

Ratios

2025/26

Sector comparison

SIC 71121

Where the company stands among the 8,336 active companies whose first SIC code is 71121 (Engineering design activities for industrial process and production).

Net assets£210,301
Higher than 89% · median £11,180
Total assets£486,892
Higher than 90% · median £37,737
Cash£46,693
Higher than 63% · median £22,556
Employees28
Higher than 98% · median 1
Company age62.4 years
Older than 99% · median 5.7 years
Largest in this sector by net assets
  1. GHD LIVIGUNN LIMITED£5.1bn
  2. PRIMETALS TECHNOLOGIES, LIMITED£405.1m
  3. NCR FINANCIAL SOLUTIONS GROUP LIMITED£107.5m
  4. EXPLEO UK LIMITED£100.1m
  5. T.EN E&C LIMITED£96.2m
  6. PACTROL CONTROLS LIMITED£78m
  7. WAVE OPTICS LIMITED£74.4m
  8. TSL LIMITED£56.1m
  9. GREY TECHNOLOGY LIMITED£51.8m
  10. EPIROC UK & IRELAND LIMITED£45.3m

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 8,336. The line on each bar marks the median.

Summary: CSX SUSTAINABLE ENGINEERING LTD

What kind of company is it?

CSX SUSTAINABLE ENGINEERING LTD is a private limited company registered with Companies House under company number 00810704. It was incorporated on 29 Jun 1964. Its status is active. The registered office is in Liverpool (L3). Its nature of business (SIC 2007) is engineering design activities for industrial process and production (71121).

How is the company doing financially?

The latest accounts in the database are for 2025/26 (period ending 30 Apr 2026); the company files small company accounts (filleted). Net assets were £210,301, up 3,639.3% on the previous year. Cash at bank and in hand was £46,693. The company had an average of 28 employees. Figures are available for 6 financial years (2020–2025/26).

How does it compare with similar companies?

Compared with 8,336 active companies whose first SIC code is 71121: By net assets it ranks higher than 89% of them (median £11,180). By total assets it ranks higher than 90% of them (median £37,737). By cash it ranks higher than 63% of them (median £22,556). By number of employees it ranks higher than 98% of them (median 1). It is older than 99% of them (median age 5.7 years).

Who runs and controls the company?

The company has 1 current director. One person with significant control is registered.

When are its next filings due?

The next accounts are due by 31 Jan 2028. The next confirmation statement is due by 12 Dec 2026.

Filed accounts2020–2025/26
20212022202320242025/26
Cash at bank and in hand121111946,693
Total assets12,04212,76412,76420,067486,892
Total liabilities5,6156,8237,14114,444—
Net assets / total equity6,4285,9425,6245,624210,301
Average number of employees111128

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.

History

20 events
  1. Financial year 2025/26 endedAccounts: net assets £210.3k, 28 employees
  2. Name changed to CSX SUSTAINABLE ENGINEERING LTDPreviously CONSOLUX CONSULTING LIMITED
  3. Financial year 2024 endedAccounts: net assets £5,624, 1 employee
  4. Financial year 2023 endedAccounts: net assets £5,624, 1 employee
  5. Financial year 2022 endedAccounts: net assets £5,942, 1 employee
  6. Consolux Holdings Ltd registered as a person with significant control
  7. Mr Richard Jon Greenough ceased to be a person with significant control
  8. Financial year 2021 endedAccounts: net assets £6,428, 1 employee
Earlier events (12)
  1. Financial year 2020 endedAccounts: net assets £6,508, 1 employee
  2. Mr Richard Jon Greenough registered as a person with significant control
  3. David Gerard CONNELL resignedSecretary
  4. David Gerard CONNELL resignedDirector
  5. Richard Jon GREENOUGH appointedDirector
  6. Andrew Thomas CONNELL resignedSecretary
  7. David Gerard CONNELL appointedSecretary
  8. Rita CONNELL resignedSecretary
  9. Rita CONNELL resignedDirector
  10. Andrew Thomas CONNELL appointedSecretary
  11. James CONNELL resignedDirector
  12. 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.