Seaward Electronic Limited
Registered name: SEAWARD ELECTRONIC LIMITED
Part of GMC-Instruments UK Limited groupSeaward Electronic Limited made £21.4m revenue and £522k profit in the year to 31 Dec 2025.
Seaward Electronic Limited’s revenue fell 14% to £21.4m in the year to 31 Dec 2025, with £522k profit and 190 employees. The company is classified under “manufacture of electronic measuring, testing etc. equipment, not for industrial process control” and is based in Peterlee Co Durham; we hold 4 years of its filed accounts.
- Status
- Active
- Location
- Peterlee Co Durham, North East
- Age
- 43 yrs · since 1982
- 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
Badges are automated estimates derived from the filed figures — not statements of fact about the company.
Financial history
| Year to | 31 Dec 2022 | 31 Dec 2023 | 31 Dec 2024 | 31 Dec 2025 |
|---|---|---|---|---|
| Disclosure | Full P&Lread from filing text | Full P&L | Full P&L | Full P&L |
| Profit & loss | ||||
| Revenue (turnover) | £20.9m | £24.9m | £24.8m | £21.4m |
| Cost of sales | £13.7m | £16.8m | −£17.6m | −£15.9m |
| Gross profit | £7.2m | £8.1m | £7.3m | £5.5m |
| Operating profit | £4m | £4.1m | £2.7m | £716k |
| Profit before tax | £4m | £4.1m | £2.7m | £717k |
| Profit after tax | £3.2m | £3.2m | £2m | £522k |
| Profit (best available) | £3.2m | £3.2m | £2m | £522k |
| Staff costs | £6.1m | £7.1m | — | — |
| Employees (average) | 171 | 178 | 202 | 190 |
| Ratios | ||||
| Profit margin | 15.5% | 12.8% | 8.1% | 2.4% |
| Gross margin | 34.5% | 32.4% | 29.3% | 25.7% |
| Revenue per employee | £122k | £140k | £123k | £113k |
| Profit per employee | £18.9k | £17.8k | £9.9k | £2.7k |
| Growth (year on year) | ||||
| Revenue growth | — | ▲19.2% | ▼0.3% | ▼13.7% |
| Profit growth | — | ▼1.9% | ▼37.1% | ▼73.9% |
| Headcount growth | — | ▲4.1% | ▲13.5% | ▼5.9% |
| Balance sheet — indirect signals, not revenue | ||||
| Cash at bank | £1.7m | £1.1m | — | — |
| Net assets | £6.8m | £7.8m | — | — |
| Fixed assets | £1.2m | £1.2m | — | — |
| Current assets | £9.3m | £10.4m | — | — |
| Debtors | £2.3m | £3.4m | — | — |
| Deferred income | £355k | £359k | — | — |
| Source | FullAccounts · bulk data Sep 2024 | FullAccounts · bulk data Sep 2024 | Accounts · bulk data Jul 2025 | Accounts · bulk data Jul 2026 |
How the business works
- Profit margin
- 2.4%
- Profit ÷ revenue.
- Gross margin
- 25.7%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £113k
- Revenue ÷ average employees.
- Profit per employee
- £2.7k
- 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 —
- Cash at bank
- —
- Now —
- Headcount
- ▼6%
- Now 190
- Deferred income
- —
- Now —
- Fixed assets
- —
- Now —
Group structure
Ownership chain
- GMC-Instruments UK Limitedultimate parent75–100%
- Seaward Electronic Limitedthis company
Bands show the share of ownership each company holds in the one below it.
From the Persons with Significant Control register (corporate controllers only).
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Sources
Latest figures from accounts for the year to 31 Dec 2025 (profit £522k), from the Companies House accounts bulk data published Jul 2026. Spotted an error? Request a correction.
Updated from Companies House on 13 Oct 2026
Contains public sector information from Companies House licensed under the Open Government Licence v3.0. Data from Companies House, © Crown copyright. View the licence.