Autonaut Limited
Registered name: AUTONAUT LIMITED
Part of Seiche Water Technology Group Ltd groupAutonaut Limited made £599k profit in the year to 31 May 2025 (revenue not disclosed).
Autonaut Limited reported £599k profit in the year to 31 May 2025; its revenue was not disclosed. It had 9 employees. The company is classified under “other professional, scientific and technical activities” and is based in Holsworthy; we hold 4 years of its filed accounts.
- Status
- Active
- Location
- Holsworthy, South West
- Age
- 14 yrs · since 2012
- Type
- Private Limited Company
Part of a group. The filing indicates this company sits within a group structure, so its results may depend on intra-group trading and it may be hard to replicate independently.
Key figures
This company published its profit but not its turnover, so revenue and margins are not disclosed. We never estimate them.
Badges are automated estimates derived from the filed figures — not statements of fact about the company.
Financial history
| Year to | 31 May 2022 | 31 May 2023 | 31 May 2024 | 31 May 2025 |
|---|---|---|---|---|
| Disclosure | Profit only | Full P&Lread from filing text | Full P&Lread from filing text | Profit only |
| Profit & loss | ||||
| Revenue (turnover) | — | £1.2m | £520k | — |
| Cost of sales | — | £875k | £468k | — |
| Gross profit | — | £276k | £52.3k | — |
| Operating profit | — | −£55.1k | −£187k | — |
| Profit before tax | — | −£92.3k | −£220k | — |
| Profit after tax | −£18.4k | −£312k | −£220k | £599k |
| Profit (best available) | −£18.4k | −£312k | −£220k | £599k |
| Employees (average) | 14 | 14 | 9 | 9 |
| Ratios | ||||
| Profit margin | — | −27.1% | −42.4% | — |
| Gross margin | — | 24% | 10.1% | — |
| Revenue per employee | — | £82.2k | £57.8k | — |
| Profit per employee | −£1.3k | −£22.3k | −£24.5k | £66.5k |
| Growth (year on year) | ||||
| Revenue growth | — | — | ▼54.8% | — |
| Headcount growth | — | 0% | ▼35.7% | 0% |
| Balance sheet — indirect signals, not revenue | ||||
| Cash at bank | £23.8k | £43.3k | £254k | £385 |
| Net assets | £114k | −£238k | −£598k | £538 |
| Fixed assets | £520k | £281k | £104k | £0 |
| Current assets | £871k | £432k | £475k | £1.7k |
| Debtors | £551k | £311k | £6.3k | £0 |
| Deferred income | £549k | £0 | £5.2k | £0 |
| Source | Accounts · bulk data Feb 2024 | Accounts · bulk data Feb 2024 | FullAccounts · bulk data Feb 2025 | FullAccounts · bulk data Mar 2026 |
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
- £66.5k
- 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 £538
- Cash at bank
- ▼100%
- Now £385
- Headcount
- 0%
- Now 9
- Deferred income
- ▼100%
- Now £0
- Fixed assets
- ▼100%
- Now £0
Group structure
Ownership chain
- Seiche Water Technology Group Ltdultimate parent75–100%
- Autonaut Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Sister companies (5)
- Seiche LimitedRev. £9.8m · Profit £101k
- Ashridge Engineering LimitedFigures not disclosed
- Seiche Environmental LtdFigures not disclosed
- Seiche Operations LtdFigures not disclosed
- Seiche Training LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
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Sources
Latest figures from FullAccounts for the year to 31 May 2025 (profit £599k), from the Companies House accounts bulk data published Mar 2026. 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.