£273k
+91%vs Jan 2025Active14582453Private limited companySouthsea
KALVOTECH LIMITED
Significant control: Risto John Martin (75–100%), Opri Kristiina Martin (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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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What does Kalvotech 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
KALVOTECH LIMITED is an active private limited company (company number 14582453) incorporated on 10 January 2023, registered in Southsea. Its registered activity is research and experimental development on biotechnology (SIC 72110). Latest micro accounts cover the period ending 31 January 2026, showing net assets of £273k, with 5 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets rose 91% on the prior period (£143k).
Peer position · net assets
By net assets it sits in the top quarter of 2,418 comparable companies in the UK (median £1,000, upper quartile £92k).
02
Ownership and control
- Mr Risto John Martin
- owns 75–100% of shares
- holds 75–100% of voting rights
- can appoint or remove directors
- Opri Kristiina Martin
- owns 25–50% of shares
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
- 10 January 20233 yrs ago
- Next accounts due
- 31 October 2027in 369 days
- Confirmation statement due
- 24 January 2027in 89 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
- Accounts type
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
5
No changevs Jan 2025| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 January 2026 | £273k | — | — | — | — | — | 5 |
| 31 January 2025 | £143k | — | — | — | — | — | 5 |
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 £272,894 at 31 January 2026
- Net assets up 10% or more on the prior period+91.2% vs prior period
- Incorporated two to five years agoIncorporated 10 January 2023
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
- Next accounts duein 369 days
- Confirmation statement duein 89 days
- Accounts period endNet assets £273k · micro accounts
- Accounts period endNet assets £143k · micro accounts
- Incorporated
08
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All companies incorporated on 10 January 2023 · in Jan 2023.
09
Reminders for KALVOTECH LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.