£174k
−2%vs Sept 2024Active07369351Private limited companyShrewsbury
GROUNDWATER SCIENCE LTD
Significant control: Magrathea Holdings Ltd (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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 Groundwater Science Ltd sell?
Registered activity: Environmental consulting activities (SIC 74901). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
GROUNDWATER SCIENCE LTD is an active private limited company (company number 07369351) incorporated on 8 September 2010, registered in Shrewsbury. Its registered activity is environmental consulting activities (SIC 74901). Latest small accounts cover the period ending 30 September 2025, showing net assets of £174k and cash of £118k, with 8 employees on average. Net assets fell 2% on the prior period (£178k).
Peer position · net assets
By net assets it sits in the top quarter of 1,318 comparable companies in Other (median £4,448, upper quartile £38k).
02
Ownership and control
- Magrathea Holdings Ltd
- owns 50–75% of shares
- holds 50–75% of voting rights
- can appoint or remove directors
- Mr Alastair David Black
- owns 50–75% of shares
- holds 50–75% of voting rights
- can appoint or remove directors
- Mr William Robert Witterick
- owns 25–50% of shares
- holds 25–50% of voting rights
- can appoint or remove directors
- Mrs Gemma Black
- 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
- 8 September 201016 yrs ago
- Next accounts due
- 30 June 2027in 248 days
- Confirmation statement due
- 22 September 2027in 332 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 74901
- Environmental consulting activities
- SIC 74909
- Other professional, scientific and technical activities n.e.c.
- Accounts type
- Total Exemption Full
- Size band
- MicroCompanies Act thresholds
05
Financials
£118k
+98%vs Sept 2024Not reported
8
+33%vs Sept 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 30 September 2025 | £174k | £118k | £169k | — | — | — | 8 |
| 30 September 2024 | £178k | £59k | £273k | — | — | — | 6 |
Cash per employee£15kCash ÷ average employees
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 £173,828 at 30 September 2025
- Cash at bank of £50,000 or moreCash £117,723
- Incorporated five or more years agoIncorporated 8 September 2010
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
- Confirmation statement duein 332 days
- Next accounts duein 248 days
- Accounts period endNet assets £174k · small accounts
- Accounts period endNet assets £178k · small accounts
- Incorporated
08
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All companies incorporated on 8 September 2010 · in Sept 2010.
09
Reminders for GROUNDWATER SCIENCE LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.