Website & contact details
- Group website
- The site of this company’s group or brand.
Diamond Engineering Services Ltd
- Incorporated
- 5 March 2009 (17 years)
- Previously known as
- CTL Seal Limited (until 8 January 2026)
- Industry
- Manufacture of metal structures and parts of structures (25110)
- Directors
- Jamie BlackPaul Terence DavisonRoy Dyson
- Accounts type
- Full
- Region
- Yorkshire
- Address
- Butterthwaite LaneEcclesfieldSheffieldS35 9WA
Filing status
- Accounts due
- 31 December 2026
- Last accounts
- 31 March 2025
- Conf. stmt due
- 7 July 2027
- Last conf. stmt
- 23 June 2026
Charges
- Total
- 2
- Outstanding
- 1
- Part satisfied
- 0
- Satisfied
- 1
Officers 8 active
Officer details are public data from the Companies House register.
Black, Jamie
Director · Appointed 24 November 2021
British
Born July 1979 (47)
Davison, Paul Terence
Director · Appointed 24 November 2021
British
Born May 1966 (60)
Dyson, Roy
Director · Appointed 24 November 2021
British
Born July 1961 (65)
Flint, Arron
Director · Appointed 24 November 2021
British
Born June 1986 (40)
Director · Appointed 24 November 2021
British
Born August 1963 (63)
Wright, Richard
Director · Appointed 24 November 2021
British
Born March 1964 (62)
Director · Appointed 31 March 2021
British
Born April 1988 (38)
Director · Appointed 5 March 2009
British
Born May 1960 (66)
Officer history (2 former)
24 November 2021
Appointed Black, Jamie as Director
24 November 2021
Appointed Davison, Paul Terence as Director
24 November 2021
Appointed Dyson, Roy as Director
24 November 2021
Appointed Flint, Arron as Director
24 November 2021
24 November 2021
Appointed Wright, Richard as Director
31 March 2021
31 March 2021
31 March 2021
5 March 2009
5 March 2009
5 March 2009
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Corporate entity · Notified 31 March 2021
Owns 50–75% of shares
Holds 50–75% of voting rights
Right to appoint and remove directors
Private Limited Company
Reg. no. 13265999
Former controllers (1)
31 March 2021
Ceased Charles Thompson UK Ltd — Owns 75–100% of shares
Financials
Balance sheet as at 31 March 2025 · full accounts
- Net Assets
- £5,108,587
- Cash
- £1,568,397
- Profit Before Tax
- £1,848,042
- Debt Ratio
- 47%
- Current Ratio
- 2.9x
- Return on Equity
- 27%
Trend
Net Assets
Balance sheet detail
| 2025 | 2024 | 2023 | 2021 | 2020 | |
|---|---|---|---|---|---|
| Fixed Assets | £2,701,093 | £2,770,867 | £2,618,188 | £1,608,068 | £1,757,804 |
| Current Assets | £7,026,813 | £8,840,895 | £5,406,144 | £3,067,685 | £3,235,164 |
| Debtors | £5,128,221 | £5,653,401 | £3,919,540 | £2,769,642 | £3,040,438 |
| Cash | £1,568,397 | £2,863,827 | £1,233,345 | £77,543 | £1,688 |
| Creditors (< 1 year) | £2,420,381 | £6,182,588 | £4,556,078 | £2,807,735 | £3,231,513 |
| Creditors (> 1 year) | £158,815 | £187,604 | £201,998 | £282,462 | £282,629 |
| Net Current Assets | £4,606,432 | £2,658,307 | £850,066 | £259,950 | £3,651 |
| Net Assets | £5,108,587 | £4,664,219 | £2,738,721 | £1,391,512 | £1,286,418 |
| Shareholder Funds | £5,108,587 | £4,664,219 | £2,738,721 | £1,391,512 | £1,286,418 |
| Turnover | £15,790,722 | £10,438,478 | |||
| Cost of Sales | £9,919,335 | £6,876,562 | |||
| Gross Profit | £5,871,387 | £3,561,916 | |||
| Admin Expenses | £2,150,304 | £2,247,259 | £1,831,622 | ||
| Staff Costs | £4,153,941 | £5,032,869 | £3,428,486 | ||
| Operating Profit | £3,638,524 | £1,744,485 | |||
| Profit Before Tax | £1,848,042 | £3,658,864 | £1,741,456 | ||
| Tax | £462,314 | £894,494 | £332,781 | ||
| Profit for Period | £1,385,728 | £2,764,370 | £1,408,675 | ||
Filings 66
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 6 July 2026 | Confirmation statement with no updates | 23 June 2026 | ||
| 8 January 2026 | Certificate of change of name | |||
| 17 December 2025 | Full accounts | 31 March 2025 | ||
| 15 August 2025 | Director's details changed | |||
| 15 August 2025 | Director's details changed |
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