SCIENTIFIC DRILLING CONTROLS LIMITED
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Cash
£10m
USD 13,816,927
+62.3% highest in 3 filed years
Net assets
£9.3m
USD 12,489,590
-23% lowest in 3 filed years
Employees
228
+5.1% highest in 3 filed years
Profit before tax
£3.5m
USD 4,763,915
+186.1% vs 2024
Net assets
3-year trend · vs Energy 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 | £49,261,126 | £39,429,195 | £32,707,711 | -17% | |
| Operating profit | £11,917,564 | £1,169,893 | £3,448,977 | +194.8% | |
| Profit before tax | £12,036,363 | £1,235,501 | £3,535,373 | +186.1% | |
| Net profit | £9,084,856 | -£226,467 | £2,345,366 | +1,135.6% | |
| Cash | £9,007,594 | £6,316,687 | £10,253,749 | +62.3% | |
| Total assets less current liabilities | — | £12,029,484 | £9,268,712 | -23% | |
| Net assets | £18,779,220 | £12,029,484 | £9,268,712 | -23% | |
| Equity | £18,779,220 | £12,029,484 | £9,268,712 | -23% | |
| Average employees | 207 | 217 | 228 | +5.1% | |
| Wages | £9,241,834 | £9,455,472 | £8,223,330 | -13% | |
| Directors' remuneration | £488,782 | £495,564 | £604,125 | +21.9% | |
| Highest paid director | £317,386 | £329,251 | £410,496 | +24.7% |
Figures converted to GBP from USD at 0.742 per USD (Frankfurter spot rate) — hover any figure for the original. — 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 | 24.2% | 3.0% | 10.5% | |
| Net margin | 18.4% | -0.6% | 7.2% | |
| Return on capital employed | — | 9.7% | 37.2% | |
| Gearing (liabilities / total assets) | 33.2% | 44.5% | 61.7% | |
| Current ratio | 2.87x | 2.08x | 1.52x | |
| Interest cover | — | 34.90x | 21.12x |
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 1 time since incorporation
- SCIENTIFIC DRILLING CONTROLS LIMITED 1986-07-08 → present
- TURVEYDROP TRADING LIMITED 1985-09-18 → 1986-07-08
Audit & accounting basis
- Accounting basis
- FRS 102
- Reporting scope
- Consolidated group
- Auditor
- AAB Audit & Accountancy Limited
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“The directors, having made due and careful enquiry, are of the opinion that the group has adequate working capital to execute its operations over the next 12 months.”
Group structure
- SCIENTIFIC DRILLING CONTROLS LIMITED · parent
- PT Scientific Drilling International Indonesia 95%
- Perforacion Cientifica Internacional, S de RL de CV 99.99%
- Scientific Drilling Controls GmbH 100%
- Scientific Drilling Enterprises Limited 100%
- Scientific Drilling Services and Trading LLC 49%
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
2 active · 19 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| LEAHY, Michael | Director | 2016-01-05 | Nov 1964 | British |
| SHEWAN, Michael Roy | Director | 2016-01-06 | Jul 1970 | British |
Show 19 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| CARTER, Daniel Roland | Secretary | 2012-05-24 | 2016-01-07 |
| LEAHY, Michael | Secretary | 2012-05-24 | 2016-01-06 |
| MACRAE, Alasdair | Secretary | — | 1998-03-31 |
| MACRAE, Sophie Louise | Secretary | 2016-01-05 | 2016-01-05 |
| MOIR, George | Secretary | 2009-08-01 | 2012-05-24 |
| THOMSON, Gordon Watt | Secretary | — | 2009-08-01 |
| VAN STEENWYK, Elizabeth Anne | Secretary | — | 2012-05-24 |
| ARMSTRONG, Dana Anne | Director | 2016-05-09 | 2020-04-24 |
| CARTER, Daniel Roland | Director | 2016-01-06 | 2026-03-19 |
| DUROCHER, Gene H | Director | 2009-12-07 | 2012-05-24 |
| MOIR, George | Director | 2012-05-24 | 2014-08-06 |
| THOMSON, Gordon Watt | Director | 2014-09-29 | 2015-12-30 |
| VAN STEENWYK, Brett H | Director | 2009-08-01 | 2011-01-28 |
| VAN STEENWYK, Donald Hubert | Director | — | 2009-12-07 |
| VAN STEENWYK, Elizabeth Anne | Director | — | 2012-05-24 |
| VAN STEENWYK, Kedrin | Director | 2009-08-01 | 2012-05-24 |
| VAN STEENWYK, Matthew Donald | Director | — | 1993-06-30 |
| WADE, William Benjamin | Director | 2010-07-28 | 2014-08-31 |
| WATSON, Scott Michael | Director | 2012-05-24 | 2014-09-29 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Scientific Drilling International, Inc. | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors, Significant influence (as firm) | 2016-04-06 | Active |
Filing timeline
Last 20 of 169 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-09-23 | AA | accounts | Accounts with accounts type group | |
| 2026-09-17 | PSC05 | persons-with-significant-control | Change to a person with significant control | |
| 2026-09-14 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2026-03-19 | TM01 | officers | Termination director company with name termination date | |
| 2025-09-29 | AA | accounts | Accounts with accounts type group | |
| 2025-09-10 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-09-27 | AA | accounts | Accounts with accounts type group | |
| 2024-09-11 | CH01 | officers | Change person director company with change date | |
| 2024-09-11 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-09-27 | AA | accounts | Accounts with accounts type group | |
| 2023-08-28 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-11-03 | AD01 | address | Change registered office address company with date old address new address | |
| 2022-09-28 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-09-28 | AA | accounts | Accounts with accounts type group | |
| 2022-08-25 | AD01 | address | Change registered office address company with date old address new address | |
| 2021-10-05 | AA | accounts | Accounts with accounts type group | |
| 2021-09-15 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2020-12-14 | AA | accounts | Accounts with accounts type group | |
| 2020-11-14 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2020-05-13 | TM01 | officers | Termination director company with name termination date |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 4
- Capital events
- 0
- Officers appointed
- 0
- Officers resigned
- 1
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.