£24k
+39%vs Sept 2024Active12197784Private limited companyPortsmouth
CALMCO LTD
Significant control: Sandy Campbell Newbigging (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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 Calmco Ltd sell?
Registered activity: Other human health activities (SIC 86900). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
CALMCO LTD is an active private limited company (company number 12197784) incorporated on 10 September 2019, registered in Portsmouth. Its registered activity is other human health activities (SIC 86900). Latest small accounts cover the period ending 30 September 2025, showing net assets of £24k and cash of £57k, with 1 employee on average. Net assets rose 39% on the prior period (£17k). Across the last 3 periods on record the net-asset trend is volatile.
Peer position · net assets
By net assets it sits in the top quarter of 529 comparable companies in Portsmouth (median £1,817, upper quartile £18k).
02
Ownership and control
- Mr Sandy Campbell Newbigging
- 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. Directors and secretaries: see the officers list at Companies House.
03
Key dates
- Incorporated
- 10 September 20197 yrs ago
- Next accounts due
- 30 June 2027in 250 days
- Confirmation statement due
- 24 September 2027in 336 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 86900
- Other human health activities
- Accounts type
- Total Exemption Full
- Size band
- MicroCompanies Act thresholds
05
Financials
£57k
+108%vs Sept 2024Not reported
1
No changevs Sept 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 30 September 2025 | £24k | £57k | — | £33k | — | — | 1 |
| 30 September 2024 | £17k | £27k | £1,353 | £13k | — | — | 1 |
| 30 September 2023 | £22k | £43k | — | £23k | — | — | 1 |
Current ratio1.71Current assets ÷ creditors within one year
Cash per employee£57kCash ÷ average employees
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 above zeroNet assets £23,536 at 30 September 2025
- Net assets up 10% or more on the prior period+39.4% vs prior period
- Current assets at least 1.5× creditors within one yearCurrent ratio 1.71
- Cash at bank of £50,000 or moreCash £56,620
- Three or more accounting periods on record3 periods on record
- Incorporated five or more years agoIncorporated 10 September 2019
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 336 days
- Next accounts duein 250 days
- Accounts period endNet assets £24k · small accounts
- Accounts period endNet assets £17k · small accounts
- Accounts period endNet assets £22k · small accounts
- Incorporated
08
Similar companies in Portsmouth
- DELTSPOWER LIMITEDWaterlooville · inc. Sept 2019
- THE DIONACE PROJECT LTDGosport · inc. Sept 2019
- PSYCH-OLOGY LIMITEDWaterlooville · inc. Sept 2019
- MAREST AND CO LIMITEDLee-On-The-Solent · inc. Sept 2019
- SOUTH COAST RX LTDPortsmouth · inc. Aug 2019
- SENSORY SPACE CICRyde · inc. Sept 2019
All companies incorporated on 10 September 2019 · in Sept 2019.
09
Reminders for CALMCO LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.