CONTINENTAL SHELF 556 LIMITED
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Cash
£12m
+99.9% highest in 3 filed years
Net assets
£38m
-62.7% lowest in 3 filed years
Employees
747
+4.8% highest in 3 filed years
Profit before tax
£25m
-30.6% lowest in 3 filed years
Net assets
3-year trend · vs Industrials median
Accounts
3-year trend · Δ = latest vs prior filed period · latest reflected 2026-03-31
| Metric | Trend | 2024-03-31 | 2025-03-31 | 2026-03-31 | Δ vs prior |
|---|---|---|---|---|---|
| Turnover | £190,121,799 | £196,173,148 | £217,001,309 | +10.6% | |
| Operating profit | £35,033,764 | £39,376,145 | £29,779,957 | -24.4% | |
| Profit before tax | £30,867,762 | £35,373,249 | £24,548,156 | -30.6% | |
| Net profit | £22,061,674 | £25,404,064 | £17,707,881 | -30.3% | |
| Cash | £4,644,533 | £6,019,004 | £12,034,910 | +99.9% | |
| Total assets less current liabilities | £127,298,916 | £128,473,128 | £129,506,518 | +0.8% | |
| Net assets | £75,775,758 | £101,179,822 | £37,776,372 | -62.7% | |
| Equity | £75,775,758 | £101,179,822 | £37,776,372 | -62.7% | |
| Average employees | 610 | 713 | 747 | +4.8% | |
| Wages | £20,155,093 | £24,447,710 | £27,569,369 | +12.8% | |
| Directors' remuneration | £488,962 | £490,000 | £53,811 | -89% |
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 | 2024-03-31 | 2025-03-31 | 2026-03-31 |
|---|---|---|---|---|
| Operating margin | 18.4% | 20.1% | 13.7% | |
| Net margin | 11.6% | 12.9% | 8.2% | |
| Return on capital employed | 27.5% | 30.6% | 23.0% | |
| Gearing (liabilities / total assets) | 49.6% | 36.4% | 77.2% | |
| Current ratio | 6.42x | 5.10x | 4.50x | |
| Interest cover | 8.19x | 9.28x | 5.36x |
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.
Audit & accounting basis
- Accounting basis
- FRS 102
- Reporting scope
- Consolidated group
- Auditor
- Azets Audit Services
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“Taking all of the above factors into consideration, the directors have prepared the financial statements on a going concern basis.”
Group structure
- CONTINENTAL SHELF 556 LIMITED · parent
- Winn Holding Limited 58.4%
- Winn Solicitors Limited 100%
- On-Hire Limited 100%
- On Medical Limited 100%
Significant events
- “During the year the company fully repaid shareholder loans and distributed dividends. Following a refinancing in Nov 25, the Group negotiated a £95m loan arrangement with PGIM/Nomura (in place until November 2030).”
- “Non-Intervention hire instructions increased by 22%. Intervention hire instructions were below last year's figure as the activity was discontinued between Jun 25 and Dec 25.”
- “On Medical Limited ceased taking new medical instructions since 1 April 2024. On Medical Limited only provided services during the year to those medical instructions not completed by 1 April 2024.”
- “Solar PV was installed in one of the Groups offices in December 2025 and is already delivering measurable benefits.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
4 active · 13 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| CUSITER, Calum Geoffrey | Director | 2016-12-08 | Oct 1980 | British |
| MACKENZIE, Scott Grant | Director | 2023-03-17 | Sep 1989 | British |
| WINN, Jeffrey John | Director | 2023-03-17 | Sep 1965 | British |
| WRIGHT, Martin Stephen Northcote | Director | 2023-03-17 | May 1968 | British |
Show 13 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| SKELTON, Mark Gerard | Secretary | 2022-10-25 | 2023-03-17 |
| WRIGHT, Martin Stephen Northcote | Secretary | 2014-01-17 | 2022-08-22 |
| ALVAREZ & MARSAL EUROPE LLP | Corporate Secretary | 2022-08-22 | 2022-10-25 |
| MD SECRETARIES LIMITED | Corporate Secretary | 2012-04-12 | 2014-01-17 |
| CHAHAL, Amarjyot Singh Khalsa | Director | 2022-08-22 | 2023-03-17 |
| CONNON, Roger Gordon | Director | 2012-04-12 | 2012-10-01 |
| GASPARINI, Guido | Director | 2022-03-21 | 2022-06-01 |
| GREEN-ARMYTAGE, Jock | Director | 2013-08-30 | 2022-06-01 |
| HERNANDO, Miguel Rueda | Director | 2013-08-30 | 2022-03-17 |
| MACFIE, Andrew James | Director | 2012-10-27 | 2016-12-08 |
| MCEWING, David | Director | 2012-04-12 | 2012-10-01 |
| SKELTON, Mark Gerard | Director | 2022-08-22 | 2023-03-17 |
| WRIGHT, Martin Stephen Northcote | Director | 2012-10-01 | 2022-06-01 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Highland And Universal Securities Limited | Corporate entity | Shares 25–50%, Voting 25–50%, Appoints directors | 2023-03-17 | Active |
| Lady Elizabeth Mcmahon Souter | Individual | Significant influence (as trust) | 2016-04-06 | Active |
| Sir Brian Souter | Individual | Significant influence (as trust) | 2016-04-06 | Active |
| Wilma Ann Roger Allen | Individual | Significant influence (as trust) | 2016-04-06 | Active |
Filing timeline
Last 20 of 81 total filings
Material constitutional events — rename, articles re-file, resolution
- 2025-09-02 RESOLUTIONS Resolution
- 2023-04-22 MA Memorandum articles
- 2023-04-22 RESOLUTIONS Resolution
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-07-09 | AA | accounts | Accounts with accounts type group | |
| 2026-04-13 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-09-02 | SH19 | capital | Capital statement capital company with date currency figure | |
| 2025-09-02 | SH20 | capital | Legacy | |
| 2025-09-02 | CAP-SS | insolvency | Legacy | |
| 2025-09-02 | RESOLUTIONS | resolution | Resolution | |
| 2025-08-04 | AA | accounts | Accounts with accounts type group | |
| 2025-04-14 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-08-28 | AA | accounts | Accounts with accounts type group | |
| 2024-04-25 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-12-22 | AA | accounts | Accounts with accounts type group | |
| 2023-06-06 | AD01 | address | Change registered office address company with date old address new address | |
| 2023-05-16 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2023-04-22 | MA | incorporation | Memorandum articles | |
| 2023-04-22 | SH08 | capital | Capital name of class of shares | |
| 2023-04-22 | RESOLUTIONS | resolution | Resolution | |
| 2023-04-14 | AP01 | officers | Appoint person director company with name date | |
| 2023-03-23 | AP01 | officers | Appoint person director company with name date | |
| 2023-03-23 | AP01 | officers | Appoint person director company with name date | |
| 2023-03-23 | PSC02 | persons-with-significant-control | Notification of a person with significant control |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 7
- Capital events
- 2
- 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.