£25
−100%vs Mar 2024Active12698693Private limited companyCambridge
JAMES TANNER DIAGNOSTICS LIMITED
Significant control: Gemma Victoria Tanner (25–50%), James Andrew Tanner (25–50%)
From public filings as at 31 Aug 2026; may contain errors or be out of date.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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Registered activity: Specialists medical practice activities (SIC 86220). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
JAMES TANNER DIAGNOSTICS LIMITED is an active private limited company (company number 12698693) incorporated on 25 June 2020, registered in Cambridge. Its registered activity is specialists medical practice activities (SIC 86220). Latest micro accounts cover the period ending 31 March 2025, showing net assets of £25, 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 fell 100% on the prior period (£6,800).
Peer position · net assets
By net assets it sits in the bottom quarter of 175 comparable companies in Cambridge (median £32k, upper quartile £128k).
02
Ownership and control
- Mrs Gemma Victoria Tanner
- owns 25–50% of shares
- holds 25–50% of voting rights
- Dr James Andrew Tanner
- 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. Directors and secretaries: see the officers list at Companies House.
03
Key dates
- Incorporated
- 25 June 20206 yrs ago
- Next accounts due
- 31 December 2026in 69 days
- Confirmation statement due
- 9 July 2027in 259 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 86220
- Specialists medical practice activities
- Accounts type
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
1
No changevs Mar 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 March 2025 | £25 | — | — | £18k | — | — | 1 |
| 31 March 2024 | £6,800 | — | — | £21k | — | — | 1 |
Current ratio0.96Current 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.
06
Filing and accounts signals
- Net assets above zeroNet assets £25 at 31 March 2025
- Net assets down 25% or more on the prior period-99.6% vs prior period
- Current assets below creditors within one yearCurrent ratio 0.96
- Incorporated five or more years agoIncorporated 25 June 2020
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 259 days
- Next accounts duein 69 days
- Accounts period endNet assets £25 · micro accounts
- Accounts period endNet assets £6,800 · micro accounts
- Incorporated
08
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All companies incorporated on 25 June 2020 · in Jun 2020.
09
Reminders for JAMES TANNER DIAGNOSTICS LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.