£3.92m
+7%vs Dec 2024Active01725851Private limited companyAndover
SEALOCK LIMITED
Significant control: Henrik Follmann (75–100%)
From public filings as at 31 Aug 2026; may contain errors or be out of date.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 Sealock Limited sell?
Registered activity: Manufacture of other chemical products n.e.c. (SIC 20590). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
SEALOCK LIMITED is an active private limited company (company number 01725851) incorporated on 24 May 1983, registered in Andover. Its registered activity is manufacture of other chemical products n.e.c. (SIC 20590). Latest small accounts cover the period ending 31 December 2025, showing net assets of £3.92m and cash of £430k, with 22 employees on average. Net assets rose 7% on the prior period (£3.65m).
Peer position · net assets
By net assets it sits in the top quarter of 120 comparable companies in Other (median £36k, upper quartile £344k).
02
Ownership and control
- Mr Henrik Follmann
- owns 75–100% of shares
- holds 75–100% of voting rights
- Mr Arthur John Young
- owns 50–75% of shares
- holds 50–75% of voting rights
- Peter John Young
- owns 25–50% of shares
- holds 25–50% of voting rights
- Christopher Mark Young
- 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
- 24 May 198343 yrs ago
- Next accounts due
- 30 September 2027in 340 days
- Confirmation statement due
- 7 June 2027in 225 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 20590
- Manufacture of other chemical products n.e.c.
- Accounts type
- Small
- Size band
- SmallCompanies Act thresholds
05
Financials
£430k
+22%vs Dec 2024Not reported
22
+16%vs Dec 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 December 2025 | £3.92m | £430k | £1.33m | £780k | — | — | 22 |
| 31 December 2024 | £3.65m | £353k | £1.44m | £995k | — | — | 19 |
Current ratio3.72Current assets ÷ creditors within one year
Cash per employee£20kCash ÷ 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 £3,921,303 at 31 December 2025
- Current assets at least 1.5× creditors within one yearCurrent ratio 3.72
- Cash at bank of £50,000 or moreCash £430,386
- Incorporated five or more years agoIncorporated 24 May 1983
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 340 days
- Confirmation statement duein 225 days
- Accounts period endNet assets £3.92m · small accounts
- Accounts period endNet assets £3.65m · small accounts
- Incorporated
08
Similar companies in the UK
- AZTEC AEROSOLS LIMITEDCrewe · inc. Feb 1983
- MELFORD LABORATORIES LIMITEDIpswich · inc. Jan 1986
- EURAM CHEMICALS LIMITEDBucks · inc. Aug 1986
- CONSERVATION CHEMICALS CONSULTANTS LIMITEDWorcester · inc. Oct 1987
- SIGMA-ALDRICH COMPANY LIMITEDGillingham · inc. Dec 1987
- CLARK-DRAIN LIMITEDPeterborough · inc. Nov 1978
All companies incorporated on 24 May 1983 · in May 1983.
09
Reminders for SEALOCK LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.