How much does Onyx Scientific Limited make?

Onyx Scientific Limited reported revenue of £10.9m and a loss of £237k in the year to 31 Mar 2025, according to its accounts filed at Companies House.

How many employees does Onyx Scientific Limited have?

Onyx Scientific Limited reported an average of 118 employees in the year to 31 Mar 2025.

Is Onyx Scientific Limited profitable?

No — Onyx Scientific Limited reported a loss of £237k in the year to 31 Mar 2025.

Company No. 03947634 · Incorporated 14 Mar 2000

Onyx Scientific Limited

Registered name: ONYX SCIENTIFIC LIMITED

Part of Kentish Holdings Ltd group

Onyx Scientific Limited made £10.9m revenue and a £237k loss in the year to 31 Mar 2025.

Onyx Scientific Limited’s revenue fell 22% to £10.9m in the year to 31 Mar 2025, with a loss of £237k and 118 employees. The company is classified under “manufacture of basic pharmaceutical products” and is based in Sunderland; we hold 3 years of its filed accounts.

Full P&L filedSection C · ManufacturingSIC 21100Manufacture of basic pharmaceutical products

Status: Active
Location: Sunderland, North East
Age: 26 yrs · since 2000
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 31 Mar 2025

Key figures

Cash flow filed

Revenue

£10.9m

Growth ▼22%

Profit

−£237k

Growth ▼114.8%

Profit margin

−2.2%

Gross 44.4%

Employees

118

Change ▲1.7%

Profit / employee

−£2k

Revenue/employee £92.7k

Profitable streak

0yrs

Consecutive profitable years in our data

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

3 filed years

Financial history

Multi-year financials, oldest to newest
Year to	31 Mar 2023	31 Mar 2024	31 Mar 2025
Disclosure	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£14.4m	£14m	£10.9m
Cost of sales	£6.9m	£6.3m	£6.1m
Gross profit	£7.4m	£7.7m	£4.8m
Operating profit	£2.7m	£2.5m	−£286k
Profit before tax	£2.7m	£2.5m	−£252k
Profit after tax	£2.3m	£1.6m	−£237k
Profit (best available)	£2.3m	£1.6m	−£237k
Staff costs	£4.3m	£4.7m	£4.6m
Employees (average)	109	116	118
Ratios
Profit margin	16%	11.4%	−2.2%
Gross margin	51.7%	55%	44.4%
Revenue per employee	£132k	£121k	£92.7k
Profit per employee	£21.1k	£13.8k	−£2k
Cash conversion	−159.8%	−148.5%	—
Growth (year on year)
Revenue growth	—	▼2.4%	▼22%
Profit growth	—	▼30.4%	▼114.8%
Headcount growth	—	▲6.4%	▲1.7%
Balance sheet — indirect signals, not revenue
Cash at bank	£1.6m	£3.6m	£2.5m
Net assets	£9.8m	£10.4m	£9.2m
Fixed assets	£7.5m	£6.8m	£5.8m
Current assets	£5.4m	£6.8m	£5.1m
Debtors	£3.1m	£2.6m	£1.9m
Cash from operations	−£4.3m	−£3.7m	−£864k
Source	Accounts · bulk data May 2024	Accounts · bulk data May 2024	FullAccounts · bulk data Jan 2026

Derived from the latest filing

How the business works

Profit margin: −2.2%; Profit ÷ revenue.
Gross margin: 44.4%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £92.7k; Revenue ÷ average employees.
Profit per employee: −£2k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 52.9%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: —; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 17.6%; 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: ▼12%; Now £9.2m
Cash at bank: ▼31%; Now £2.5m
Headcount: ▲2%; Now 118
Deferred income: —; Now —
Fixed assets: ▼15%; Now £5.8m

Corporate ownership

Group structure

Ownership chain

Kentish Holdings Ltdultimate parent50–75%
Kentish Sub Ltd75–100%
Canalside N1 Ltd50–75%
Ipca Ltd75–100%
Ipca Laboratories UK Limited75–100%
Onyx Scientific Limitedthis company

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

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 31 Mar 2025 (profit −£237k), from the Companies House accounts bulk data published Jan 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.