Filtronic PLC
Registered name: FILTRONIC PLC
Filtronic PLC made £56.3m revenue and £14m profit in the year to 31 May 2025.
Filtronic PLC’s revenue grew 121% to £56.3m in the year to 31 May 2025, with £14m profit and 165 employees. The company is classified under “manufacture of communication equipment other than telegraph, and telephone apparatus and equipment” and is based in Sedgefield; we hold 3 years of its filed accounts.
- Status
- Active
- Location
- Sedgefield, North East
- Age
- 32 yrs · since 1994
- Type
- Public 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 May 2023 | 31 May 2024 | 31 May 2025 |
|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L |
| Profit & loss | |||
| Revenue (turnover) | £16.3m | £25.4m | £56.3m |
| Operating profit | £237k | £3.6m | £13.4m |
| Profit before tax | £64k | £3.4m | £13.4m |
| Profit after tax | £464k | £3.1m | £14m |
| Profit (best available) | £464k | £3.1m | £14m |
| Employees (average) | 125 | 121 | 165 |
| Ratios | |||
| Profit margin | 2.9% | 12.3% | 24.9% |
| Revenue per employee | £130k | £210k | £341k |
| Profit per employee | £3.7k | £26k | £85.1k |
| Growth (year on year) | |||
| Revenue growth | — | ▲56.3% | ▲121.4% |
| Profit growth | — | ▲576.9% | ▲347.3% |
| Headcount growth | — | ▼3.2% | ▲36.4% |
| Balance sheet — indirect signals, not revenue | |||
| Net assets | — | — | — |
| Source | Accounts · bulk data Nov 2024 | Accounts · bulk data Nov 2024 | Accounts · bulk data Oct 2025 |
How the business works
- Profit margin
- 24.9%
- Profit ÷ revenue.
- Gross margin
- —
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £341k
- Revenue ÷ average employees.
- Profit per employee
- £85.1k
- 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
- ▲36%
- Now 165
- Deferred income
- —
- Now —
- Fixed assets
- —
- Now —
Group structure
Subsidiaries (3)
- Filtronic Broadband LimitedFigures not disclosed
- Filtronic Holdings UK LimitedFigures not disclosed
- Isotek (Holdings) LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Similar profitable businesses
- Domo Tactical Communications (DTC) LimitedWhiteley · Manufacture of communication equipment other than telegraph, and telephone apparatus and equipment
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- £72.9m
- Profit
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- Staff
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- Panorama Antennas LimitedLondon · Manufacture of communication equipment other than telegraph, and telephone apparatus and equipment
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- Profit
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- Ocean Signal LimitedMargate · Manufacture of communication equipment other than telegraph, and telephone apparatus and equipment
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- Profit
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- Controlled Electronic Management Systems LimitedManufacture of telegraph and telephone apparatus and equipment
- Revenue
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- Profit
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- Staff
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Sources
Latest figures from accounts for the year to 31 May 2025 (profit £14m), from the Companies House accounts bulk data published Oct 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.