NIOX HEALTHCARE LIMITED

Active
Company number 03689966Private limited companyIncorporated 1998

Key figures

£139,676,000-1.4%
Net assets 2025
-1.4%
Average annual change 2024–2025
050 m100 m150 m20242025

† NIOX HEALTHCARE LIMITED filed these accounts on paper, so Companies House publishes them only as a scanned image. The figures for the years marked † were read automatically from the scan and kept only where the statements add up (for example net assets equal total equity), but a reading error is still possible — check the original accounts at Companies House.

Ratios

2025

Sector comparison

SIC 46660

Where the company stands among the 489 active companies whose first SIC code is 46660 (Wholesale of other office machinery and equipment).

Net assets£139,676,000
Higher than 99% · median £38,796
Total assets£148,701,000
Higher than 99% · median £146,851
Cash£7,303,000
Higher than 99% · median £73,715
Employees28
Higher than 95% · median 2
Company age27.9 years
Older than 83% · median 15.8 years
Largest in this sector by net assets
  1. XEROX (UK) LIMITED£141.7m
  2. NIOX HEALTHCARE LIMITED£139.7m
  3. AGILICO WORKPLACE TECHNOLOGY LIMITED£75.8m
  4. AVERY DENNISON UK II LIMITED£39.9m
  5. AVERY DENNISON OFFICE PRODUCTS MANUFACTURING U.K. LIMITED£32.1m
  6. KARLSON UK LIMITED£13.4m
  7. JGBM LTD£8.9m
  8. CANDA COPYING LIMITED£7m
  9. LANGSTANE PRESS LIMITED£5.2m
  10. INDUSTORE LIMITED£4.8m

Positions are approximate. Figures come from each company's latest accounts; money and employee figures are compared only with companies that filed accounts in pounds for a period ending in the last two and a half years and are not dormant, so those groups are smaller than 489. The line on each bar marks the median.

Summary: NIOX HEALTHCARE LIMITED

What kind of company is it?

NIOX HEALTHCARE LIMITED is a private limited company registered with Companies House under company number 03689966. It was incorporated on 29 Dec 1998. Its status is active. The registered office is in Oxford (OX4). Its nature of business (SIC 2007) is wholesale of other office machinery and equipment (46660).

How is the company doing financially?

The latest accounts in the database are for 2025 (period ending 31 Dec 2025); the company files audit-exempt subsidiary. Turnover was £4,168,000. Net assets were £139,676,000, down 1.4% on the previous year. Cash at bank and in hand was £7,303,000. Total assets were £148,701,000 and total liabilities £2,596,000. The company had an average of 28 employees. Figures are available for 2 financial years (2024–2025).

How does it compare with similar companies?

Compared with 489 active companies whose first SIC code is 46660: By net assets it ranks higher than 99% of them (median £38,796). By total assets it ranks higher than 99% of them (median £146,851). By cash it ranks higher than 99% of them (median £73,715). By number of employees it ranks higher than 95% of them (median 2). It is older than 83% of them (median age 15.8 years).

Does it supply the public sector?

The company is named as the supplier in one public contract award notice, from University of Aberdeen. Contracts awarded to it alone have a combined published value of £210k.

What do public registers and reports show?

HMRC lists it as an importer of goods, mainly optical, medical and measuring instruments, miscellaneous manufactures. HMRC lists it as an exporter of goods, mainly optical, medical and measuring instruments. It has modern slavery statements on the government registry for 4 years.

Who runs and controls the company?

One person with significant control is registered.

When are its next filings due?

The next accounts are due by 30 Sep 2027. The next confirmation statement is due by 12 Jan 2027.

Filed accounts2024–2025
2024 †2025 †
Turnover4,319,0004,168,000
Cash at bank and in hand6,107,0007,303,000
Total assets147,877,000148,701,000
Total liabilities2,274,0002,596,000
Net assets / total equity141,593,000139,676,000
Average number of employees2828

A dash (—) means no accounts were filed for that year or the item is not in the accounts; 0 is a zero stated in the accounts. Small companies usually file only a balance sheet, so the profit and loss account is often missing.

Public contracts

1 contract

NIOX HEALTHCARE LIMITED is named as a supplier in 1 public contract award notice from University of Aberdeen. Its published value is £210k.

Contract
  1. Niox Vero Devices - University of Aberdeen‡University of Aberdeen · £210,000

From contract award notices on Contracts Finder (since 2016) and Find a Tender (since 2021), published by the Cabinet Office under the Open Government Licence v3.0. Values are as published by the buyer and usually cover the whole contract term; the total leaves out awards shared between several suppliers, where the published figure is a ceiling for all of them, placeholder values and single figures of £1 billion or more. Notices marked ‡ do not state a company number and were linked by an exact match on the registered name. Contracts below the publication thresholds and those of devolved buyers that publish elsewhere are not included.

Statutory reporting

Modern slavery statements4
2026
Statement · summary on GOV.UK · group statement (NIOX GROUP PLC)
2025
Statement · summary on GOV.UK · group statement (NIOX GROUP PLC)
2024
Statement · summary on GOV.UK · group statement (NIOX GROUP PLC)
Earlier years (1)
2021
Statement · summary on GOV.UK · group statement (NIOX GROUP PLC)

Figures the company reported itself to the government's Check payment practices service, Gender pay gap service and Modern slavery statement registry (Open Government Licence v3.0). Only large companies and employers with 250 or more staff have to report, so most companies have nothing here.

Registers and licences

International trade‡

Listed by HMRC as an importer of goods in 12 of the last 12 months on record, most recently August 2026. Main goods: optical, medical and measuring instruments and miscellaneous manufactures.

Listed by HMRC as an exporter of goods in 3 of the last 12 months on record, most recently August 2026. Main goods: optical, medical and measuring instruments.

From HMRC's monthly lists of importers and exporters. Traders can ask to be left off the lists, so absence does not mean a company does not trade.

Sources: Charity Commission for England and Wales, Care Quality Commission, Home Office and HM Revenue & Customs, under the Open Government Licence v3.0. Entries marked ‡ come from lists that do not state a company number and were linked by an exact match on the registered name.

History

5 events
  1. Financial year 2025 endedAccounts: turnover £4.2m, net assets £139.7m, 28 employees
  2. Financial year 2024 endedAccounts: turnover £4.3m, net assets £141.6m, 28 employees
  3. Name changed to NIOX HEALTHCARE LIMITEDPreviously CIRCASSIA LIMITED
  4. Niox Group Plc registered as a person with significant control
  5. Company incorporatedPrivate limited company

Dates as recorded at Companies House: incorporation, name changes, officer appointments and resignations, current persons with significant control, and the end of each financial year with figures in the database. Former persons with significant control are not listed.