In Administration12909273Private limited companyLondon

CLOCK BIO LIMITED

In administrationAn administrator is managing the company's affairs, business and property. Status as shown on the Companies House register at 31 August 2026; it may have changed since. Check the live record.
Companies HouseCompanies House

From public filings as at 31 Aug 2026; may contain errors or be out of date.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

01

Summary

Generated from filed data · no estimates

CLOCK BIO LIMITED is a in administration private limited company (company number 12909273) incorporated on 28 September 2020, registered in London. Its registered activity is research and experimental development on biotechnology (SIC 72110). Latest small accounts cover the period ending 31 December 2025, showing net assets of £1.46m and cash of £121k, with 10 employees on average. Net assets fell 57% on the prior period (£3.38m).

Peer position · net assets

By net assets it sits in the top quarter of 603 comparable companies in London (median £440, upper quartile £92k).

02

Key dates

Incorporated
28 September 20206 yrs ago
Next accounts due
30 September 2027in 343 days
Confirmation statement due
12 October 2027in 355 days

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

03

Activity

SIC 72110
Research and experimental development on biotechnology
Accounts type
Total Exemption Full
Size band
MicroCompanies Act thresholds
04

Financials

2 periods on record · latest ending 31 December 2025
Net assets
£1.46m
−57%vs Dec 2024
Cash at bank
£121k
−96%vs Dec 2024
Turnover
Not reported
Employees
10
+100%vs Dec 2024
Net assets
£1.46m
Cash at bank
£121k
Average employees
10
Filed accounts by period, newest first
Period endNet assetsCashDebtorsCreditors <1yTurnoverProfitEmployees
31 December 2025£1.46m£121k—£71k——10
31 December 2024£3.38m£2.75m—£118k——5
Current ratio19.53Current assets ÷ creditors within one year
Cash per employee£12kCash ÷ average employees

Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.

05

Filing and accounts signals

Facts from the register · no rating
  • Net assets above zeroNet assets £1,458,587 at 31 December 2025
  • Net assets down 25% or more on the prior period-56.9% vs prior period
  • Current assets at least 1.5× creditors within one yearCurrent ratio 19.53
  • Cash at bank of £50,000 or moreCash £121,298
  • Incorporated five or more years agoIncorporated 28 September 2020
  • Register status is not ActiveIn Administration

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.

06

Ownership and control

0 active · 4 other

No active person with significant control is registered.

  • persons with significant control statement · since 29 February 2024
  • Dr. Bernhard Klemen
    Individual · since 28 September 2020 · ceased 29 December 2021
    • owns 25–50% of shares
    • holds 25–50% of voting rights
  • Dr Mark Reinhard Kotter
    Individual · since 28 September 2020 · ceased 29 February 2024
    • owns 25–50% of shares
    • holds 25–50% of voting rights
  • Mr Florian Schuster
    Individual · since 28 September 2020 · ceased 29 December 2021
    • owns 25–50% of shares
    • holds 25–50% of voting rights

Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents.

07

Timeline

Newest first
  1. Confirmation statement duein 355 days
  2. Next accounts duein 343 days
  3. Accounts period endNet assets £1.46m · small accounts
  4. Accounts period endNet assets £3.38m · small accounts
  5. Incorporated
08

Similar companies in London

Same activity (research and experimental development on biotechnology), closest in incorporation date
09

Reminders for CLOCK BIO 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.