PROTHERICS UK LIMITED
ActiveKey figures
† PROTHERICS UK 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
2025Sector comparison
SIC 21100Where the company stands among the 1,055 active companies whose first SIC code is 21100 (Manufacture of basic pharmaceutical products).
- GE HEALTHCARE LIMITED£5.6bn
- THERMO FISHER SCIENTIFIC LIFE HOLDINGS LIMITED£1.4bn
- LRC PRODUCTS LIMITED£1bn
- SMITHKLINE BEECHAM LIMITED£940m
- DECHRA LIMITED£780.1m
- IPSEN BIOPHARM LIMITED£588.2m
- ORTHO-CLINICAL DIAGNOSTICS£295.7m
- BESPAK EUROPE LIMITED£256m
- SEQIRUS VACCINES LIMITED£254.2m
- IOVANCE BIOTHERAPEUTICS UK LTD£199.7m
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 1,055. The line on each bar marks the median.
Summary: PROTHERICS UK LIMITED
What kind of company is it?
PROTHERICS UK LIMITED is a private limited company registered with Companies House under company number 03464264. It was incorporated on 12 Nov 1997. Its status is active. The registered office is in Ceredigion (SA44). Its nature of business (SIC 2007) is manufacture of basic pharmaceutical products (21100).
How is the company doing financially?
The latest accounts in the database are for 2025 (period ending 31 Dec 2025); the company files full accounts. Turnover was £24,271,000. Loss for the year was £245,498,000. Net assets were £58,825,000, down 80.7% on the previous year. Cash at bank and in hand was £9,921,000. The company had an average of 140 employees. Figures are available for 2 financial years (2024–2025).
How does it compare with similar companies?
Compared with 1,055 active companies whose first SIC code is 21100: By turnover it ranks higher than 51% of the 97 that publish turnover (median £23,360,137). By net assets it ranks higher than 94% of them (median £41,497). By total assets it ranks higher than 95% of them (median £308,978). By cash it ranks higher than 94% of them (median £135,555). By number of employees it ranks higher than 93% of them (median 1). It is older than 83% of them (median age 9.0 years).
What do public registers and reports show?
HMRC lists it as an importer of goods, mainly pharmaceuticals, inorganic chemicals, machinery. HMRC lists it as an exporter of goods, mainly pharmaceuticals, machinery, optical, medical and measuring instruments. In its latest payment practices report it took an average of 29 days to pay suppliers, and 9% of invoices were not paid within agreed terms.
Who runs and controls the company?
2 persons with significant control are registered. 1 of 18 registered charges are outstanding.
When are its next filings due?
The next accounts are due by 30 Sep 2027. The next confirmation statement is due by 27 Nov 2026.
Filed accounts2024–2025
| 2024 † | 2025 † | |
|---|---|---|
| Turnover | 54,482,000 | 24,271,000 |
| Profit for the year | 16,732,000 | -245,498,000 |
| Cash at bank and in hand | 5,335,000 | 9,921,000 |
| Total assets | — | 137,510,000 |
| Total liabilities | — | — |
| Net assets / total equity | 304,323,000 | 58,825,000 |
| Average number of employees | 139 | 140 |
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.
Statutory reporting
- Average time taken to pay invoices
- 29 days
- Invoices not paid within agreed terms
- 9%
- Standard payment terms
- 7–60 days
- Member of a payment code
- No
- Within 30 days 52%
- 31 to 60 days 34%
- After 60 days 14%
Earlier periods (7)
- Period ending
- Days to pay
- Within 30 days
- Late
- 31 Dec 2025
- 30
- 49%
- 9%
- 30 Jun 2025
- 28
- 66%
- 7%
- 31 Dec 2024
- 27
- 75%
- 44%
- 30 Jun 2024
- 28
- 72%
- 43%
- 31 Dec 2023
- 27
- 76%
- 43%
- 30 Jun 2023
- 28
- 72%
- 46%
- 31 Dec 2022
- 27
- 75%
- 43%
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
Listed by HMRC as an importer of goods in 12 of the last 12 months on record, most recently August 2026. Main goods: pharmaceuticals, inorganic chemicals, machinery, other animal products and salt, stone and cement.
Listed by HMRC as an exporter of goods in 12 of the last 12 months on record, most recently August 2026. Main goods: pharmaceuticals, machinery and 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
13 events- Financial year 2025 endedAccounts: turnover £24.3m, net assets £58.8m, 140 employees
- Financial year 2024 endedAccounts: turnover £54.5m, net assets £304.3m, 139 employees
- Charterhouse Gp Llp registered as a person with significant control
- Charterhouse Capital Partners Llp ceased to be a person with significant control
- Perseus Bidco Uk Ltd registered as a person with significant control
- Btg International Healthcare Limited ceased to be a person with significant control
- Charterhouse Capital Partners Llp registered as a person with significant control
- Boston Scientific Corporation ceased to be a person with significant control
Earlier events (5)
- Btg International Healthcare Limited registered as a person with significant control
- Btg Management Services Limited ceased to be a person with significant control
- Boston Scientific Corporation registered as a person with significant control
- Btg Management Services Limited registered as a person with significant control
- Company incorporatedPrivate limited company
Dates as recorded at Companies House: incorporation, name changes, officer appointments and resignations, current and former persons with significant control, and the end of each financial year with figures in the database.