−£5.48m
vs Dec 2024Active09875556Private limited companyLondon
POLYMATERIA LIMITED
From public filings as at 31 Aug 2026; may contain errors or be out of date.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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Registered activity: Other professional, scientific and technical activities n.e.c. (SIC 74909). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
POLYMATERIA LIMITED is an active private limited company (company number 09875556) incorporated on 17 November 2015, registered in London. Its registered activity is other professional, scientific and technical activities n.e.c. (SIC 74909). Latest small accounts cover the period ending 31 December 2025, showing net assets of −£5.48m and cash of £1.82m, with 24 employees on average. Net assets fell 572% on the prior period (−£814k). Across the last 3 periods on record the net-asset trend is falling.
Peer position · net assets
By net assets it sits in the bottom quarter of 7,601 comparable companies in London (median £3,258, upper quartile £44k).
02
Ownership and control
No active person with significant control is registered.
- Mr Jonathan David Sieff
- 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
- 17 November 201510 yrs ago
- Next accounts due
- 30 September 2027in 341 days
- Confirmation statement due
- 1 December 2026in 38 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 74909
- Other professional, scientific and technical activities n.e.c.
- Accounts type
- Small
- Size band
- MicroCompanies Act thresholds
05
Financials
£1.82m
−65%vs Dec 2024Not reported
24
−27%vs Dec 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 December 2025 | −£5.48m | £1.82m | £856k | £1.74m | — | −£4.70m | 24 |
| 31 December 2024 | −£814k | £5.26m | £832k | £1.59m | — | −£7.90m | 33 |
| 31 December 2023 | £2.16m | £4.20m | £1.21m | £1.07m | — | −£10.39m | 37 |
| 31 December 2022 | — | — | — | — | — | — | — |
Current ratio1.63Current assets ÷ creditors within one year
Cash per employee£76kCash ÷ 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 below zeroNet assets £-5,475,803 at 31 December 2025
- Net assets down 25% or more on the prior period-572.3% vs prior period
- Current assets at least 1.5× creditors within one yearCurrent ratio 1.63
- Cash at bank of £50,000 or moreCash £1,822,634
- Three or more accounting periods on record4 periods on record
- Incorporated five or more years agoIncorporated 17 November 2015
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 341 days
- Confirmation statement duein 38 days
- Accounts period endNet liabilities £5.48m · small accounts
- Accounts period endNet liabilities £814k · small accounts
- Accounts period endNet assets £2.16m · small accounts
- Accounts period end
- Incorporated
08
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- ABC BROMLEY LTDLondon · inc. Nov 2015
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- EXCALIBUR DEBTCO LIMITEDLondon · inc. Nov 2015
- MAHI HIANGA LTDLondon · inc. Nov 2015
- TECHSPERT.IO LTDLondon · inc. Nov 2015
All companies incorporated on 17 November 2015 · in Nov 2015.
09
Reminders for POLYMATERIA LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.