£3
No changevs Mar 2025Active12495754Private limited companyHenley On Thames
SHANNON DIAMOND DRILLING LTD
Significant control: Sean Patrick Maguire (25–50%), Oliver Allan O'Donovan (50–75%)
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
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What does Shannon Diamond Drilling Ltd sell?
Registered activity: Test drilling and boring (SIC 43130). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
SHANNON DIAMOND DRILLING LTD is an active private limited company (company number 12495754) incorporated on 3 March 2020, registered in Henley On Thames. Its registered activity is test drilling and boring (SIC 43130). Latest dormant accounts cover the period ending 31 March 2026, showing net assets of £3. Net assets were unchanged on the prior period.
Peer position · net assets
By net assets it sits in the lower half of 338 comparable companies in the UK (median £15k, upper quartile £116k).
02
Ownership and control
- Mr Sean Patrick Maguire
- owns 25–50% of shares
- holds 25–50% of voting rights
- Mr Oliver Allan O'Donovan
- owns 50–75% of shares
- holds 50–75% of voting rights
- can appoint or remove directors
- Mr Balbir Singh Cheema
- owns 25–50% of shares
- holds 25–50% of voting rights
Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents. Directors and secretaries: see the officers list at Companies House.
03
Key dates
- Incorporated
- 3 March 20206 yrs ago
- Next accounts due
- 31 December 2027in 429 days
- Confirmation statement due
- 17 March 2027in 140 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 43130
- Test drilling and boring
- Accounts type
- Dormant
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not reported
Not reported
| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 March 2026 | £3 | — | — | — | — | — | — |
| 31 March 2025 | £3 | — | — | — | — | — | — |
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
06
Filing and accounts signals
- Net assets above zeroNet assets £3 at 31 March 2026
- Incorporated five or more years agoIncorporated 3 March 2020
Neutral facts read from the register and filed accounts, each with its evidence. They are not a rating, a prediction or advice, and may be incomplete or out of date. How each signal is derived.
07
Timeline
- Next accounts duein 429 days
- Confirmation statement duein 140 days
- Accounts period endNet assets £3 · dormant accounts
- Accounts period endNet assets £3 · dormant accounts
- Incorporated
08
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09
Reminders for SHANNON DIAMOND DRILLING LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.