£5.82m
+3%vs Jun 2024Active04492798Private limited companyCambridge
DURHAM MAGNETO OPTICS LTD
Significant control: Professor Russell Paul Cowburn (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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 Durham Magneto Optics Ltd sell?
Registered activity: Other manufacturing n.e.c. (SIC 32990). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
DURHAM MAGNETO OPTICS LTD is an active private limited company (company number 04492798) incorporated on 23 July 2002, registered in Cambridge. Its registered activity is other manufacturing n.e.c. (SIC 32990). Latest small accounts cover the period ending 30 June 2025, showing net assets of £5.82m and cash of £3.88m, with 18 employees on average. Net assets rose 3% on the prior period (£5.63m).
Peer position · net assets
By net assets it sits in the top quarter of 110 comparable companies in Cambridge (median £18k, upper quartile £455k).
02
Ownership and control
- Professor Russell Paul Cowburn
- owns 75–100% of shares
- holds 75–100% of voting rights
- can appoint or remove directors
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
- 23 July 200224 yrs ago
- Next accounts due
- 30 March 2027in 154 days
- Confirmation statement due
- 6 August 2027in 283 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 32990
- Other manufacturing n.e.c.
- Accounts type
- Total Exemption Full
- Size band
- SmallCompanies Act thresholds
05
Financials
£3.88m
+21%vs Jun 2024Not reported
18
+20%vs Jun 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 30 June 2025 | £5.82m | £3.88m | — | £566k | — | — | 18 |
| 30 June 2024 | £5.63m | £3.19m | — | £472k | — | — | 15 |
Current ratio10.74Current assets ÷ creditors within one year
Cash per employee£215kCash ÷ 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 £5,815,287 at 30 June 2025
- Current assets at least 1.5× creditors within one yearCurrent ratio 10.74
- Cash at bank of £50,000 or moreCash £3,875,921
- Incorporated five or more years agoIncorporated 23 July 2002
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 283 days
- Next accounts duein 154 days
- Accounts period endNet assets £5.82m · small accounts
- Accounts period endNet assets £5.63m · small accounts
- Incorporated
08
Similar companies in Cambridge
- VIRIDIAN SOLAR LIMITEDCambridge · inc. Aug 2002
- EXCELECT LIMITEDinc. Apr 2002
- EUROPEAN SPECIAL FABRICATIONS LIMITEDGreat Chesterford · inc. Mar 2002
- ENGINEERING AND DESIGN PLASTICS LTDCambridge · inc. Feb 2002
- THE FOUNDRY HARDWARE COMPANY LTDEssex · inc. Jan 2003
- N E JOINERY LIMITEDCambridge · inc. Jan 2003
All companies incorporated on 23 July 2002 · in Jul 2002.
09
Reminders for DURHAM MAGNETO OPTICS LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.