Filing status
- Accounts due
- 30 September 2027
- Last accounts
- 31 December 2025
- Conf. stmt due
- 10 October 2027
- Last conf. stmt
- 26 September 2026
Koster Aquatecnic Limited
- Incorporated
- 30 November 2000 (25 years)
- Previously known as
- Aquatecnic Limited (until 7 January 2009)
- Industry
- Other retail sale not in stores, stalls or markets (47990)
- Directors
- Alexander James LynnNigel Stanley Mercer DayBridget Davina Day
- Accounts type
- Total exemption full
- Region
- North West
- Address
- Unit 4 Cooper WayCarlisleCA3 0JG
Charges
- Total
- 2
- Outstanding
- 0
- Part satisfied
- 0
- Satisfied
- 2
Officers 4 active
Officer details are public data from the Companies House register.
Lynn, Alexander James
Director · Appointed 1 November 2018
British
Born August 1981 (45)
Day, Bridget Davina
Secretary · Appointed 2 November 2001
British
Day, Nigel Stanley Mercer
Director · Appointed 17 April 2001
British
Born March 1966 (60)
Day, Bridget Davina
Director · Appointed 30 November 2000
British
Born March 1966 (60)
Officer history (5 former)
1 November 2018
Appointed Lynn, Alexander James as Director
31 August 2012
Resigned Hunt, Robert as Director
31 March 2012
Resigned Mertins, Willi Otto Frederick as Director
1 April 2007
Appointed Hunt, Robert as Director
2 November 2001
Resigned Day, Martin Frank Mercer as Secretary
2 November 2001
Appointed Day, Bridget Davina as Secretary
17 April 2001
Appointed Day, Nigel Stanley Mercer as Director
17 April 2001
Appointed Mertins, Willi Otto Frederick as Director
30 November 2000
Appointed Day, Bridget Davina as Director
30 November 2000
30 November 2000
30 November 2000
30 November 2000
Appointed Day, Martin Frank Mercer as Secretary
30 November 2000
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Corporate entity · Notified 12 February 2026
Owns 75–100% of shares
Holds 75–100% of voting rights
Right to appoint and remove directors
Private Limited Company
Reg. no. 16969133
Former controllers (2)
12 February 2026
Ceased Nigel Stanley Mercer Day — Owns 50–75% of shares
12 February 2026
Ceased Johann Jakob Koster — Owns 25–50% of shares
Group structure 3 companies
Ownership group derived from the Companies House PSC register
Koster Aquatecnic Holdings Limited Owns 50–75% of shares
Koster Aquatecnic Limited This company Owns 75–100% of shares
Financials
Balance sheet as at 31 December 2025 · total exemption full accounts
- Net Assets
- £661,089
- Cash
- £476,353
- Employees
- 8
- Debt Ratio
- 34%
- Current Ratio
- 2.4x
Trend
Net Assets
Balance sheet detail
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|
| Fixed Assets | £193,926 | £176,163 | £205,394 | £221,477 | £253,480 | £224,675 | £265,783 |
| Current Assets | £809,067 | £900,211 | £703,348 | £807,115 | £701,105 | £805,382 | £568,509 |
| Debtors | £215,469 | £512,374 | £197,830 | £185,640 | £244,666 | £161,323 | |
| Cash | £476,353 | £486,869 | £72,509 | £502,624 | £428,265 | £482,071 | £283,146 |
| Creditors (< 1 year) | £341,904 | £444,226 | £326,974 | £418,366 | £401,761 | £421,406 | £319,175 |
| Creditors (> 1 year) | £0 | £46,800 | £52,945 | £57,333 | £63,165 | £123,100 | £137,584 |
| Net Current Assets | £467,163 | £455,985 | £376,374 | £388,749 | £299,344 | £383,976 | £249,334 |
| Net Assets | £661,089 | £585,348 | £527,999 | £544,336 | £479,290 | £472,943 | £360,701 |
| Shareholder Funds | £527,999 | £544,336 | £479,290 | £472,943 | £360,701 |
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 24 March 2026 | Total exemption full accounts | 31 December 2025 | ||
| 13 February 2026 | Cessation of a person with significant control | |||
| 13 February 2026 | Cessation of a person with significant control | |||
| 13 February 2026 | Notification of a person with significant control | |||
| 17 December 2025 | Change of details for a person with significant control |
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