£3.36m
+5%vs Dec 2024Active01664115Private limited companyHarlow
ELECTRO-DETECTORS LIMITED
Significant control: Arthenella Limited (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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 Electro-Detectors Limited sell?
Registered activity: Manufacture of other electrical equipment (SIC 27900). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
ELECTRO-DETECTORS LIMITED is an active private limited company (company number 01664115) incorporated on 14 September 1982, registered in Harlow. Its registered activity is manufacture of other electrical equipment (SIC 27900). Latest small accounts cover the period ending 31 December 2025, showing net assets of £3.36m and cash of £3.11m, with 31 employees on average. Net assets rose 5% on the prior period (£3.19m). Across the last 3 periods on record the net-asset trend is volatile.
Peer position · net assets
By net assets it sits in the top quarter of 57 comparable companies in Essex (median £20k, upper quartile £232k).
02
Ownership and control
- Arthenella Limited
- owns 75–100% of shares
- holds 75–100% 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
- 14 September 198244 yrs ago
- Next accounts due
- 30 September 2027in 341 days
- Confirmation statement due
- 28 September 2027in 339 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 27900
- Manufacture of other electrical equipment
- Accounts type
- Small
- Size band
- SmallCompanies Act thresholds
05
Financials
£3.11m
+39%vs Dec 2024Not reported
31
No changevs Dec 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 December 2025 | £3.36m | £3.11m | £1.57m | £3.33m | — | — | 31 |
| 31 December 2024 | £3.19m | £2.24m | £3.34m | — | — | — | 31 |
| 31 December 2023 | £3.45m | £2.92m | £1.77m | — | — | — | 30 |
Current ratio1.71Current assets ÷ creditors within one year
Cash per employee£100kCash ÷ 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 £3,360,964 at 31 December 2025
- Current assets at least 1.5× creditors within one yearCurrent ratio 1.71
- Cash at bank of £50,000 or moreCash £3,110,526
- Three or more accounting periods on record3 periods on record
- Incorporated five or more years agoIncorporated 14 September 1982
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 339 days
- Accounts period endNet assets £3.36m · small accounts
- Accounts period endNet assets £3.19m · small accounts
- Accounts period endNet assets £3.45m · small accounts
- Incorporated
08
Similar companies in Essex
- TRANSFORMER MANUFACTURING COMPANY LIMITEDMill Lane Maldon · inc. Jan 1981
- COTHERM (UK) LIMITEDSudbury · inc. Jan 1986
- GIBBONS ENGINEERING GROUP LTDMaldon · inc. Apr 1978
- WORLDBRIDGE LIMITEDColchester · inc. Jun 1987
- PULSE ELECTRONICS (AVIONICS) LIMITEDRochford · inc. Apr 1977
- SOUNDUNIT LIMITEDSudbury · inc. Nov 1988
All companies incorporated on 14 September 1982 · in Sept 1982.
09
Reminders for ELECTRO-DETECTORS LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.