Active03873386Private limited companyWitney

PROIMMUNE LIMITED

Significant control: Mark Jefferies (significant control), Chris Guilbert (significant control)

Companies HouseCompanies House

From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms

Coming soon · product and service lists

What does Proimmune Limited sell?

Registered activity: Other human health activities (SIC 86900). 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

Generated from filed data · no estimates

PROIMMUNE LIMITED is an active private limited company (company number 03873386) incorporated on 8 November 1999, registered in Witney. Its registered activity is other human health activities (SIC 86900). Latest small accounts cover the period ending 31 December 2024, showing net assets of £58.60m and cash of £1.03m, with 44 employees on average. Net assets rose 21% on the prior period (£48.40m).

Peer position · net assets

By net assets it sits in the top quarter of 468 comparable companies in Oxford (median £1,961, upper quartile £25k).

02

Ownership and control

2 active
  • Mr Mark Jefferies
    Individual · since 6 April 2016
    • has significant influence or control
  • Mr Chris Guilbert
    Individual · since 6 April 2016
    • has significant influence or control

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
8 November 199926 yrs ago
Next accounts due
30 September 202623 days overdue
Confirmation statement due
22 November 2026in 30 days

Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.

04

Activity

SIC 86900
Other human health activities
Accounts type
Total Exemption Full
Size band
SmallCompanies Act thresholds
05

Financials

2 periods on record · latest ending 31 December 2024
Net assets
£58.60m
+21%vs Dec 2023
Cash at bank
£1.03m
+19%vs Dec 2023
Turnover
Not reported
Employees
44
+13%vs Dec 2023
Net assets
£58.60m
Cash at bank
£1.03m
Average employees
44
Filed accounts by period, newest first
Period endNet assetsCashDebtorsCreditors <1yTurnoverProfitEmployees
31 December 2024£58.60m£1.03m—£1.27m——44
31 December 2023£48.40m£871k—£868k——39
Current ratio43.91Current assets ÷ creditors within one year
Cash per employee£23kCash ÷ 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

Facts from the register · no rating
  • Net assets above zeroNet assets £58,600,359 at 31 December 2024
  • Net assets up 10% or more on the prior period+21.1% vs prior period
  • Current assets at least 1.5× creditors within one yearCurrent ratio 43.91
  • Cash at bank of £50,000 or moreCash £1,031,967
  • Incorporated five or more years agoIncorporated 8 November 1999
  • Accounts past their due dateDue 30 September 2026

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

Newest first
  1. Confirmation statement duein 30 days
  2. Next accounts due23 days overdue
  3. Accounts period endNet assets £58.60m · small accounts
  4. Accounts period endNet assets £48.40m · small accounts
  5. Incorporated
08

Similar companies in Oxford

Same activity (other human health activities), closest in incorporation date
09

Reminders for PROIMMUNE LIMITED

Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.

Source: Companies House register, snapshot 2026-08-31; accounts from the Companies House accounts data product. Open Government Licence v3.0. View on Companies House. Methodology · About · Markdown.