ISOLER LTD.
Company number 02766783 · Active · Durham DH1 1TN
ISOLER LTD. is an active private limited company (company number 02766783) incorporated on 23 November 1992, registered in Durham. Its registered activity is other specialised construction activities n.e.c. (SIC 43999). Latest full accounts cover the period ending 31 March 2025, showing net assets of £5.07m and cash of £1.16m, with 78 employees on average. Net assets rose 37% on the prior period (£3.70m).
By net assets it sits in the top quarter of 713 comparable companies in Newcastle (median £6,802, upper quartile £49k).
Key dates
- Incorporated
- 23 November 1992
- Next accounts due
- 31 December 2026 — in 77 days
- Confirmation statement due
- 7 December 2026 — in 53 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
Activity
- SIC 43999
- Other specialised construction activities n.e.c.
- Accounts type
- Full
- Size band
- Small (Companies Act thresholds)
Financials — 3 periods on record, latest ending 31 March 2025
| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 March 2025 | £5.07m | £1.16m | £5.52m | £1.86m | — | £1.37m | 78 |
| 31 March 2024 | £3.70m | £452k | £3.99m | £976k | — | £894k | 79 |
| 31 March 2023 | — | — | — | — | — | — | — |
- Current ratio
- 3.71 — comfortable
- Cash per employee
- £15k
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
Firmoscan score: 93/100 (grade A)
- +10 Positive net assets — Net assets £5,069,032 at 2025-03-31
- +8 Net assets growing — +36.9% vs prior period
- +8 Comfortable liquidity — Current ratio 3.71
- +4 Cash reserves — Cash £1,164,931
- +5 Multi-year filing history — 3 periods on record
- +8 Established — Incorporated 1992-11-23 (34 years)
A transparent, rules-based score from filed data only: every point lists its evidence. It is not a credit rating or advice.
Ownership and control
- Northern Bear Construction Limited (corporate entity, England) — owns 75–100% of shares; holds 75–100% of voting rights; can appoint or remove directors · since 24 November 2021
- Northern Bear Plc (corporate entity, England) — owns 75–100% of shares · since 6 April 2016 · ceased 24 November 2021
Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents.
Similar companies in Newcastle
Same activity (other specialised construction activities n.e.c.), closest in incorporation date.
- AIR DESIGN SYSTEMS LIMITED — Gateshead, inc. Jun 1993
- DRILCORP LIMITED — Seaham, inc. Feb 1992
- SEALANE INSHORE LIMITED — South Shields, inc. Sept 1993
- MGM LTD — Gateshead, inc. Jan 1992
- JOHN F. PATRICK LIMITED — Newcastle Upon Tyne, inc. Nov 1993
- SUTTON SERVICES INTERNATIONAL LIMITED — Newcastle Upon Tyne, inc. Jul 1991
Reminders for ISOLER LTD.
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.