£1.81m
−4%vs Nov 2024Active02389004Private limited companyKing'S Lynn
KBIOSYSTEMS LIMITED
Significant control: Porvair PLC (75–100%)
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
Watch this company
Get an email when Companies House records a change for Kbiosystems Limited: status, filings, accounts, officers or owners. Free.
Not live yet: alerts start by 15 December 2026. We store your email and this company number only, for these alerts. If alerts don’t launch, we tell you and delete your address. Privacy
Coming soon · product and service lists
What does Kbiosystems 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.
One email, only about this. If we don’t launch within 60 days we’ll tell you. Privacy
01
Summary
KBIOSYSTEMS LIMITED is an active private limited company (company number 02389004) incorporated on 25 May 1989, registered in King'S Lynn. Its registered activity is manufacture of other electrical equipment (SIC 27900). Latest small accounts cover the period ending 30 November 2025, showing net assets of £1.81m and cash of £694k, with 29 employees on average. Turnover was £4.06m. Net assets fell 4% on the prior period (£1.89m). 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 365 comparable companies in Other (median £28k, upper quartile £321k).
02
Ownership and control
- Porvair Plc
- owns 75–100% of shares
- Mr Michael David Biddle
- owns 25–50% of shares
- Mr Alan Shepherd
- 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
- 25 May 198937 yrs ago
- Next accounts due
- 30 August 2027in 310 days
- Confirmation statement due
- 8 June 2027in 227 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
- Total Exemption Full
- Size band
- SmallCompanies Act thresholds
05
Financials
£694k
+2%vs Nov 2024£4.06m
Not reported the period before29
−3%vs Nov 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 30 November 2025 | £1.81m | £694k | £468k | £351k | £4.06m | — | 29 |
| 30 November 2024 | £1.89m | £680k | £433k | £537k | — | — | 30 |
| 30 November 2023 | £1.69m | £489k | £438k | £391k | — | — | 39 |
Current ratio6.17Current assets ÷ creditors within one year
Cash per employee£24kCash ÷ 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 £1,811,000 at 30 November 2025
- Current assets at least 1.5× creditors within one yearCurrent ratio 6.17
- Cash at bank of £50,000 or moreCash £694,000
- Three or more accounting periods on record3 periods on record
- Incorporated five or more years agoIncorporated 25 May 1989
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 310 days
- Confirmation statement duein 227 days
- Accounts period endNet assets £1.81m · small accounts
- Accounts period endNet assets £1.89m · small accounts
- Accounts period endNet assets £1.69m · small accounts
- Incorporated
08
Similar companies in the UK
- ZAPI UK LIMITEDShropshire · inc. Apr 1989
- DAVLEC LIMITEDMontgomeryshire. · inc. Apr 1989
- ICAM ARCHIVE SYSTEMS LIMITEDLeek · inc. Dec 1989
- ROLEC SERVICES LIMITEDBoston · inc. Sept 1988
- EXEGON LIMITEDStamford · inc. Jul 1988
- SERIOUS BRANDS LIMITEDHp19 8ry · inc. Mar 1990
All companies incorporated on 25 May 1989 · in May 1989.
09
Reminders for KBIOSYSTEMS LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.