How much does Kbiosystems Limited make?

Kbiosystems Limited reported revenue of £4.1m and £423k profit in the year to 30 Nov 2025, according to its accounts filed at Companies House.

How many employees does Kbiosystems Limited have?

Kbiosystems Limited reported an average of 29 employees in the year to 30 Nov 2025.

Is Kbiosystems Limited profitable?

Yes — Kbiosystems Limited reported a profit of £423k in the year to 30 Nov 2025.

Company No. 02389004 · Incorporated 25 May 1989

Kbiosystems Limited

Registered name: KBIOSYSTEMS LIMITED

Part of Porvair PLC group

Kbiosystems Limited made £4.1m revenue and £423k profit in the year to 30 Nov 2025.

Kbiosystems Limited’s revenue grew 27% to £4.1m in the year to 30 Nov 2025, with £423k profit and 29 employees. The company is classified under “manufacture of other electrical equipment” and is based in King's Lynn; we hold 4 years of its filed accounts.

Full P&L filedSection C · ManufacturingSIC 27900Manufacture of other electrical equipment

Status: Active
Location: King's Lynn, East of England
Age: 37 yrs · since 1989
Type: Private Limited Company

Part of a group. The filing indicates this company sits within a group structure, so its results may depend on intra-group trading and it may be hard to replicate independently.

Latest accounts · year to 30 Nov 2025

Key figures

Capital-lightOperating leverageDoing more with less

Revenue

£4.1m

Growth ▲26.9%

Profit

£423k

Growth ▲119.2%

Profit margin

10.4%

Gross 21.6%

Employees

Change ▼3.3%

Profit / employee

£14.6k

Revenue/employee £140k

Profitable streak

4yrs

Consecutive profitable years in our data

Badges are automated estimates derived from the filed figures — not statements of fact about the company.

4 filed years

Financial history

Multi-year financials, oldest to newest
Year to	30 Nov 2022	30 Nov 2023	30 Nov 2024	30 Nov 2025
Disclosure	Full P&L	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£6.6m	£3.5m	£3.2m	£4.1m
Cost of sales	£4.9m	£2.7m	£2.6m	£3.2m
Gross profit	£1.8m	£834k	£561k	£875k
Operating profit	£902k	£266k	£263k	£567k
Profit before tax	£901k	£263k	£259k	£565k
Profit after tax	£733k	£203k	£193k	£423k
Profit (best available)	£733k	£203k	£193k	£423k
Employees (average)	42	39	30	29
Ratios
Profit margin	11.1%	5.8%	6%	10.4%
Gross margin	26.7%	23.7%	17.5%	21.6%
Revenue per employee	£158k	£90.1k	£107k	£140k
Profit per employee	£17.5k	£5.2k	£6.4k	£14.6k
Growth (year on year)
Revenue growth	—	▼47%	▼9%	▲26.9%
Profit growth	—	▼72.3%	▼4.9%	▲119.2%
Headcount growth	—	▼7.1%	▼23.1%	▼3.3%
Balance sheet — indirect signals, not revenue
Cash at bank	£1.2m	£489k	£680k	£694k
Net assets	£2m	£1.7m	£1.9m	£1.8m
Fixed assets	£349k	£303k	£221k	£131k
Current assets	£2.7m	£2m	£2.3m	£2.2m
Debtors	£328k	£382k	£345k	£432k
Deferred income	£447k	£83k	£103k	£67k
Source	FullAccounts · bulk data Aug 2024	FullAccounts · bulk data Aug 2024	AbridgedAccounts · bulk data Aug 2025	FullAccounts · bulk data Aug 2026

Derived from the latest filing

How the business works

Profit margin: 10.4%; Profit ÷ revenue.
Gross margin: 21.6%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £140k; Revenue ÷ average employees.
Profit per employee: £14.6k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 3.2%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 1.7%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 10.7%; Money owed by customers. Low = customers pay quickly.

Indirect — not revenue

Balance-sheet signals

Year-on-year changes in filed balance-sheet items. They can hint at momentum (or investment) but are not revenue or profit and must not be read as such.

Net assets: ▼4%; Now £1.8m
Cash at bank: ▲2%; Now £694k
Headcount: ▼3%; Now 29
Deferred income: ▼35%; Now £67k
Fixed assets: ▼41%; Now £131k

Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.

Corporate ownership

Group structure

Ownership chain

Porvair PLCultimate parent75–100%
Kbiosystems Limitedthis company

Bands show the share of ownership each company holds in the one below it.

Sister companies (3)

Seal Analytical LimitedRev. £1.5m · Profit £273k
Kbioservices LimitedFigures not disclosed
Porvair Filtration LimitedRev. — · Profit £6m

From the Persons with Significant Control register (corporate controllers only).

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Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 30 Nov 2025 (profit £423k), from the Companies House accounts bulk data published Aug 2026. Spotted an error? Request a correction.

Contains public sector information from Companies House licensed under the Open Government Licence v3.0. Data from Companies House, © Crown copyright. View the licence.