Seebeck 123 Limited
Registered name: SEEBECK 123 LIMITED
Seebeck 123 Limited made £19.1m revenue and a £989k loss in the year to 31 Aug 2025.
Seebeck 123 Limited’s revenue grew 4% to £19.1m in the year to 31 Aug 2025, with a loss of £989k and 403 employees. The company is classified under “dormant company” and is based in Spratton; we hold 4 years of its filed accounts.
- Status
- Active
- Location
- Spratton, East Midlands
- Age
- 11 yrs · since 2015
- 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 | 31 Aug 2022 | 31 Aug 2023 | 31 Aug 2024 | 31 Aug 2025 |
|---|---|---|---|---|
| Disclosure | Profit only | Full P&L | Full P&L | Full P&L |
| Profit & loss | ||||
| Revenue (turnover) | — | £17.5m | £18.5m | £19.1m |
| Cost of sales | — | £12.7m | £13.5m | £13.4m |
| Gross profit | — | £4.9m | £4.9m | £5.8m |
| Operating profit | — | £1.2m | £1.2m | £2.2m |
| Profit before tax | — | £528k | −£439k | £669k |
| Profit after tax | −£3.8m | £0 | −£899k | −£989k |
| Profit (best available) | −£3.8m | £0 | −£899k | −£989k |
| Staff costs | — | £7.5m | £9.6m | £11.3m |
| Employees (average) | 2 | 2 | 358 | 403 |
| Ratios | ||||
| Profit margin | — | 0% | −4.9% | −5.2% |
| Gross margin | — | 27.8% | 26.6% | 30.1% |
| Revenue per employee | — | £8.8m | £51.6k | £47.5k |
| Profit per employee | −£1.9m | £0 | −£2.5k | −£2.5k |
| Cash conversion | — | 143% | 136.2% | 129% |
| Growth (year on year) | ||||
| Revenue growth | — | — | ▲5.4% | ▲3.7% |
| Headcount growth | — | 0% | ▲17800% | ▲12.6% |
| Balance sheet — indirect signals, not revenue | ||||
| Cash at bank | — | £341k | £27.7k | £63.7k |
| Net assets | £8.2m | £8.2m | £7.3m | £6.3m |
| Fixed assets | — | £33m | £31.1m | £29.2m |
| Current assets | — | £6.2m | £8.3m | £10.4m |
| Debtors | £0 | £0 | £1.7m | £1.5m |
| Deferred income | £0 | £0 | — | — |
| Cash from operations | — | £1.7m | £1.6m | £2.9m |
| Source | FullAccounts · bulk data Sep 2024 | FullAccounts · bulk data Sep 2024 | FullAccounts · bulk data Apr 2025 | FullAccounts · bulk data Jun 2026 |
How the business works
- Profit margin
- −5.2%
- Profit ÷ revenue.
- Gross margin
- 30.1%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £47.5k
- Revenue ÷ average employees.
- Profit per employee
- −£2.5k
- Profit ÷ average employees.
- Cash conversion
- 129%
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 152.7%
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- —
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- 7.8%
- 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
- ▼14%
- Now £6.3m
- Cash at bank
- ▲130%
- Now £63.7k
- Headcount
- ▲13%
- Now 403
- Deferred income
- —
- Now —
- Fixed assets
- ▼6%
- Now £29.2m
Group structure
Subsidiaries (1)
- I-Con Design and Build LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Sources
Latest figures from FullAccounts for the year to 31 Aug 2025 (profit −£989k), from the Companies House accounts bulk data published Jun 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.