−£816k
vs Dec 2024Active10176186Private limited companyLondon
CAREFUL SYSTEMS LIMITED
Significant control: David James Hamblin-Brown (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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 Careful Systems Limited sell?
Registered activity: Business and domestic software development (SIC 62012). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
CAREFUL SYSTEMS LIMITED is an active private limited company (company number 10176186) incorporated on 12 May 2016, registered in London. Its registered activity is business and domestic software development (SIC 62012). Latest micro accounts cover the period ending 31 December 2025, showing net assets of −£816k, 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 73% on the prior period (−£473k).
Peer position · net assets
By net assets it sits in the bottom quarter of 15,170 comparable companies in London (median £702, upper quartile £27k).
02
Ownership and control
- Dr David James Hamblin-Brown
- owns 75–100% 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
- 12 May 201610 yrs ago
- Next accounts due
- 30 September 2027in 339 days
- Confirmation statement due
- 26 May 2027in 212 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 62012
- Business and domestic software development
- SIC 62020
- Information technology consultancy activities
- Accounts type
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
1
No changevs Dec 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 December 2025 | −£816k | — | — | — | — | — | 1 |
| 31 December 2024 | −£473k | — | — | — | — | — | 1 |
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 below zeroNet assets £-816,190 at 31 December 2025
- Net assets down 25% or more on the prior period-72.5% vs prior period
- Incorporated five or more years agoIncorporated 12 May 2016
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 339 days
- Confirmation statement duein 212 days
- Accounts period endNet liabilities £816k · micro accounts
- Accounts period endNet liabilities £473k · micro accounts
- Incorporated
08
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All companies incorporated on 12 May 2016 · in May 2016.
09
Reminders for CAREFUL SYSTEMS LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.