£352
+129%vs Jul 2024Active15005294Private limited companyDurham
DOUBLE STRAND LTD
B72/10001
Summary
DOUBLE STRAND LTD is an active private limited company (company number 15005294) incorporated on 15 July 2023, registered in Durham. Its registered activity is research and experimental development on biotechnology (SIC 72110). Latest micro accounts cover the period ending 31 July 2025, showing net assets of £352, with 1 employee on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets rose 129% on the prior period (£154).
Peer position · net assets
By net assets it sits in the lower half of 2,418 comparable companies in the UK (median £1,000, upper quartile £92k).
02
Key dates
- Incorporated
- 15 July 20233 yrs ago
- Next accounts due
- 30 April 2027in 190 days
- Confirmation statement due
- 29 July 2027in 280 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
- Micro Entity
- Size band
- MicroCompanies Act thresholds
04
Financials
Not reported
Not disclosed
1
No changevs Jul 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 July 2025 | £352 | — | — | £580 | — | — | 1 |
| 31 July 2024 | £154 | — | — | £0 | — | — | 1 |
Current ratio1.06Current assets ÷ creditors within one year
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing; micro-entity accounts contain no profit and loss account.
05
Firmoscan score
72 / 100 · grade B
| 50 | Starting scoreEvery scored company starts here |
| +10 | Positive net assetsNet assets £352 at 2025-07-31 |
| +8 | Net assets growing+128.6% vs prior period |
| +4 | Past first filingsIncorporated 2023-07-15 |
| 72 | Score, grade B |
A transparent, rules-based score from filed data only: every point lists its evidence. It is not a credit rating or advice. How the score is computed.
06
Ownership and control
- Mr Oliver Byron Willis Sullivan
- owns 75–100% of shares
- holds 75–100% of voting rights
- can appoint or remove directors
Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents.
07
Timeline
- Confirmation statement duein 280 days
- Next accounts duein 190 days
- Accounts period endNet assets £352 · micro accounts
- Accounts period endNet assets £154 · micro accounts
- Incorporated
08
Similar companies in Newcastle
- GAMMA PROTEINS LTDDurham · inc. Sept 2023
- CORSENBIO CONSULTING LTDHexham · inc. Sept 2023
- KERATO LIMITEDNewcastle Upon Tyne · inc. Oct 2023
- JETBIO LTDNewcastle Upon Tyne · inc. Mar 2023
- GITLIFE BIOTECH LTDNewcastle Upon Tyne · inc. Feb 2023
- UGEN DX LTDNewcastle Upon Tyne · inc. Jan 2024
All companies incorporated on 15 July 2023 · in Jul 2023.
09
Reminders for DOUBLE STRAND LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.