DIAM UK LTD.
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Cash
£5.6m
-25.3% vs 2024
Net assets
£9.3m
+1.8% highest in 3 filed years
Employees
230
+5% highest in 3 filed years
Profit before tax
£3.6m
-23.7% vs 2024
Net assets
3-year trend · vs Consumer Discretionary median
Accounts
3-year trend · Δ = latest vs prior filed period · latest reflected 2025-12-31
| Metric | Trend | 2023-12-31 | 2024-12-31 | 2025-12-31 | Δ vs prior |
|---|---|---|---|---|---|
| Turnover | £39,019,150 | £49,891,883 | £45,925,324 | -8% | |
| Operating profit | £1,558,948 | £5,148,078 | £3,787,150 | -26.4% | |
| Profit before tax | £1,283,571 | £4,773,380 | £3,640,160 | -23.7% | |
| Net profit | £954,021 | £3,173,236 | £2,668,913 | -15.9% | |
| Cash | £3,222,839 | £7,552,403 | £5,639,894 | -25.3% | |
| Total assets less current liabilities | £5,797,609 | £10,324,303 | £10,590,050 | +2.6% | |
| Net assets | £5,256,786 | £9,179,469 | £9,347,548 | +1.8% | |
| Equity | £5,256,786 | £9,179,469 | £9,347,548 | +1.8% | |
| Average employees | 210 | 219 | 230 | +5% | |
| Wages | £7,689,354 | £8,085,761 | £8,945,046 | +10.6% | |
| Directors' remuneration | £919,326 | £809,716 | £745,192 | -8% |
Values shown as filed in the company's annual accounts. — 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 | 2023-12-31 | 2024-12-31 | 2025-12-31 |
|---|---|---|---|---|
| Operating margin | 4.0% | 10.3% | 8.2% | |
| Net margin | 2.4% | 6.4% | 5.8% | |
| Return on capital employed | 26.9% | 49.9% | 35.8% | |
| Current ratio | 1.17x | 1.32x | 1.29x | |
| Interest cover | 5.66x | 13.74x | 25.76x |
Margins divide P&L lines by turnover. 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
- DIAM UK LTD. 2001-02-20 → present
- DIAM INTERNATIONAL LIMITED 1994-02-08 → 2001-02-20
- NO. 213 LEICESTER LIMITED 1993-11-12 → 1994-02-08
Audit & accounting basis
- Accounting basis
- FRS 102
- Reporting scope
- Standalone (parent only)
- Auditor
- Grant Thornton UK LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“Capital spend has been achieved over recent years and continued investment in 2025 with further additions of machinery, and improvements made to the plant from funds generated through operations. While the UK offices were fully refurbished in 2025, there will be no depletion of capital capabilities over the coming years, as the plant remains to be stocked with good quality and relatively new equipment that will not need to be replaced in the near future. The business demonstrated continued growth during 2025, (with 2024 sales being considered exceptional) resulting in increased retained earnings providing stability. For 2026 and the foreseeable future, the company plans to continue in targeting growth of sales, by expansion in other segments of the market and increase the volume of its revenue streams.”
Significant events
- “The ongoing conflict in the Middle East has contributed to rising oil prices, which are having a direct impact on the cost of polymer-based raw materials. In addition, transport costs continue to rise, adding further pressure throughout the supply chain. The company have taken extensive measures to manage these pressures internally and to minimise the impact on the customers wherever possible in the form of using recycled materials from obsolete goods returned from market and using electric vehicles being charged from the array of solar panels owned by the business at the company's site. However, the scale of the disruption and cost increases now being experienced means that price adjustments are unavoidable to continue supply reliably and sustainably. Nevertheless, the company remains committed to working closely with customers and maintaining continuity of supply wherever possible.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
4 active · 22 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| BAGLEY, David Simpson | Director | 1998-01-30 | Oct 1961 | British |
| BAGLEY, Mark Simpson | Director | 2008-11-01 | Oct 1962 | British |
| RUSSO, Davide Mario | Director | 2021-07-26 | Jan 1968 | British,Italian |
| SMITH, Mark Stephen | Director | 2025-07-01 | Sep 1980 | British |
Show 22 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| ARGYLE, Alan | Secretary | 1998-01-30 | 2004-12-09 |
| COX, Rachel Anne | Secretary | 1993-11-12 | 1994-05-18 |
| HAMILTON, Charles Gordon | Secretary | 1994-05-20 | 1995-04-19 |
| MCWILLIAM, Paul | Secretary | 1995-04-19 | 1998-01-30 |
| WOOD, Jonathan Ross | Secretary | 2004-09-27 | 2007-04-21 |
| ARGYLE, Alan | Director | 1999-01-01 | 2004-12-09 |
| BAGLEY, Andrew Simpson | Director | 1995-06-07 | 2001-12-31 |
| BAGLEY, Clive Simpson | Director | 1998-01-30 | 2022-12-31 |
| BAGLEY, Martin Simpson | Director | 1999-01-01 | 2016-02-09 |
| BENOIT, Marc | Director | 2005-11-17 | 2007-01-21 |
| BOEZENNEC, Herve | Director | 1995-06-07 | 2005-11-17 |
| DOMMANGE, Jacques | Director | 1995-06-07 | 2005-11-17 |
| DUPERE, Louis | Director | 1995-06-07 | 2005-11-17 |
| EASINGWOOD, Giles | Director | 1998-01-30 | 2023-10-09 |
| MCWILLIAM, Paul | Director | 1994-02-23 | 2000-11-01 |
| POULLAIN, Yvon | Director | 1994-02-23 | 2001-12-31 |
| ROBERTS, Christopher Dathan | Director | 2005-03-01 | 2007-08-31 |
| SHAW, Richard Darrell | Director | 2002-01-01 | 2002-08-31 |
| TYMKOW, Peter Andrew | Director | 1998-01-30 | 2004-09-27 |
| VALLANCE, Julie Rose | Nominee Director | 1993-11-12 | 1994-03-22 |
| WOOD, Jonathan Ross | Director | 2003-12-01 | 2007-04-21 |
| YOUNGS, Stuart Robert David | Director | 1998-01-30 | 2021-03-31 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Cosmos Newco Uk Limited | Corporate entity | Shares 75–100%, Voting 75–100% | 2020-02-19 | Active |
Filing timeline
Last 20 of 178 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-07-13 | AA | accounts | Accounts with accounts type full | |
| 2026-05-27 | MR04 | mortgage | Mortgage satisfy charge full | |
| 2026-05-27 | MR04 | mortgage | Mortgage satisfy charge part | |
| 2026-05-27 | MR04 | mortgage | Mortgage satisfy charge full | |
| 2026-05-27 | MR04 | mortgage | Mortgage satisfy charge full | |
| 2025-11-04 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-07-11 | AA | accounts | Accounts with accounts type full | |
| 2025-07-04 | CH01 | officers | Change person director company with change date | |
| 2025-07-04 | AP01 | officers | Appoint person director company with name date | |
| 2024-10-29 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-10-18 | AA | accounts | Accounts with accounts type full | |
| 2024-01-10 | AA | accounts | Accounts with accounts type full | |
| 2023-10-30 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-10-10 | TM01 | officers | Termination director company with name termination date | |
| 2023-01-04 | TM01 | officers | Termination director company with name termination date | |
| 2022-11-11 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-05-05 | AA | accounts | Accounts with accounts type full | |
| 2021-10-29 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2021-09-20 | AA | accounts | Accounts with accounts type full | |
| 2021-08-11 | AP01 | officers | Appoint person director company with name date |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 6
- Capital events
- 0
- Officers appointed
- 0
- Officers resigned
- 0
last 12 months
last 24 months
last 12 months
last 12 months
Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.