Callstera Ltd
Registered name: CALLSTERA LTD
Callstera Ltd made £0 revenue and a £390 loss in the year to 30 Apr 2025.
Callstera Ltd’s revenue was £0 in the year to 30 Apr 2025, with a loss of £390 and 0 employees. The company is classified under “business and domestic software development” and is based in Whitstable; we hold 4 years of its filed accounts.
- Status
- Active
- Location
- Whitstable, South East
- Age
- 21 yrs · since 2005
- Type
- Private Limited Company
Key figures
Badges are automated estimates derived from the filed figures — not statements of fact about the company.
Financial history
| Year to | 30 Apr 2022 | 30 Apr 2023 | 30 Apr 2024 | 30 Apr 2025 |
|---|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L | Full P&L |
| Profit & loss | ||||
| Revenue (turnover) | £0 | £0 | £0 | £0 |
| Profit after tax | −£189 | −£363 | −£344 | −£390 |
| Profit (best available) | −£189 | −£363 | −£344 | −£390 |
| Employees (average) | — | 0 | 0 | 0 |
| Ratios | ||||
| Profit margin | — | — | — | — |
| Balance sheet — indirect signals, not revenue | ||||
| Net assets | −£16.1k | −£16.5k | −£15.8k | −£15.7k |
| Fixed assets | £821 | £752 | £1k | £1.5k |
| Current assets | £294 | £0 | — | — |
| Source | FullAccounts · bulk data Dec 2023 | FullAccounts · bulk data Dec 2023 | FullAccounts · bulk data Jan 2025 | FullAccounts · bulk data Dec 2025 |
How the business works
- Profit margin
- —
- Profit ÷ revenue.
- Gross margin
- —
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- —
- Revenue ÷ average employees.
- Profit per employee
- —
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- —
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- —
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- —
- Money owed by customers. Low = customers pay quickly.
Balance-sheet signals
Year-on-year changes in filed balance-sheet items. They can hint at momentum (or investment) but are not revenue or profit and must not be read as such.
- Net assets
- —
- Now −£15.7k
- Cash at bank
- —
- Now —
- Headcount
- —
- Now 0
- Deferred income
- —
- Now —
- Fixed assets
- ▲42%
- Now £1.5k
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Sources
Latest figures from FullAccounts for the year to 30 Apr 2025 (profit −£390), from the Companies House accounts bulk data published Dec 2025. Spotted an error? Request a correction.
Contains public sector information from Companies House licensed under the Open Government Licence v3.0. Data from Companies House, © Crown copyright. View the licence.