−£170k
vs Dec 2023Active08806556Private limited companyCambridge
RNASSIST LIMITED
Significant control: Caldbeck (Holdings) Limited (75–100%)
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
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What does Rnassist Limited sell?
Registered activity: Research and experimental development on biotechnology (SIC 72110). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
RNASSIST LIMITED is an active private limited company (company number 08806556) incorporated on 9 December 2013, registered in Cambridge. Its registered activity is research and experimental development on biotechnology (SIC 72110). Latest small accounts cover the period ending 31 December 2024, showing net assets of −£170k and cash of £10k, with 0 employees on average. Net assets fell 43% on the prior period (−£119k).
Peer position · net assets
By net assets it sits in the bottom quarter of 196 comparable companies in Cambridge (median £15k, upper quartile £347k).
02
Ownership and control
- Caldbeck (Holdings) Limited
- owns 75–100% of shares
- holds 75–100% 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. Directors and secretaries: see the officers list at Companies House.
03
Key dates
- Incorporated
- 9 December 201312 yrs ago
- Next accounts due
- 30 September 202624 days overdue
- Confirmation statement due
- 23 December 2026in 60 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 72110
- Research and experimental development on biotechnology
- SIC 82990
- Other business support service activities n.e.c.
- Accounts type
- Total Exemption Full
- Size band
- MicroCompanies Act thresholds
05
Financials
£10k
−55%vs Dec 2023Not reported
0
Not reported the period before| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 December 2024 | −£170k | £10k | £4,316 | £294k | — | — | 0 |
| 31 December 2023 | −£119k | £23k | £846 | £285k | — | — | — |
Current ratio0.42Current assets ÷ creditors within one year
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
06
Filing and accounts signals
- Net assets below zeroNet assets £-169,514 at 31 December 2024
- Net assets down 25% or more on the prior period-42.9% vs prior period
- Current assets below creditors within one yearCurrent ratio 0.42
- Incorporated five or more years agoIncorporated 9 December 2013
- 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
- Confirmation statement duein 60 days
- Next accounts due24 days overdue
- Accounts period endNet liabilities £170k · small accounts
- Accounts period endNet liabilities £119k · small accounts
- Incorporated
08
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- CAMBRIDGE NEUROTECH LTDCambridge · inc. Nov 2013
- CAMBRIDGE ANIMAL HEALTH LTDCambridge · inc. Nov 2013
- CAMBRIDGE NUTRANOSTICS LIMITEDCambridge · inc. Jan 2014
- BIOSCEPTRE INTERNATIONAL LIMITEDCambridge · inc. Oct 2013
- STEMCELL TECHNOLOGIES UK LTDCambridge · inc. Feb 2014
All companies incorporated on 9 December 2013 · in Dec 2013.
09
Reminders for RNASSIST LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.