Gill Instruments Limited
Registered name: GILL INSTRUMENTS LIMITED
Part of Gill Corporate Limited groupGill Instruments Limited made £15.1m revenue and £3.5m profit in the year to 31 Oct 2025.
Gill Instruments Limited’s revenue fell 2% to £15.1m in the year to 31 Oct 2025, with £3.5m profit and 95 employees. The company is classified under “manufacture of electronic components” and is based in Exeter; we hold 2 years of its filed accounts.
- Status
- Active
- Location
- Exeter, South West
- Age
- 38 yrs · since 1988
- 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 Oct 2024 | 31 Oct 2025 |
|---|---|---|
| Disclosure | Full P&L | Full P&L |
| Profit & loss | ||
| Revenue (turnover) | £15.3m | £15.1m |
| Cost of sales | £9.3m | £10m |
| Gross profit | £6m | £5.1m |
| Profit before tax | £5.2m | £4.3m |
| Profit after tax | £4.5m | £3.5m |
| Profit (best available) | £4.5m | £3.5m |
| Staff costs | £3.7m | £4.4m |
| Employees (average) | 91 | 95 |
| Ratios | ||
| Profit margin | 29.1% | 23.1% |
| Gross margin | 39.3% | 33.8% |
| Revenue per employee | £169k | £159k |
| Profit per employee | £49.1k | £36.8k |
| Growth (year on year) | ||
| Revenue growth | — | ▼1.6% |
| Profit growth | — | ▼21.8% |
| Headcount growth | — | ▲4.4% |
| Balance sheet — indirect signals, not revenue | ||
| Cash at bank | £815k | £1m |
| Net assets | £7.7m | £9.5m |
| Fixed assets | £1.7m | £1.7m |
| Current assets | £7.4m | £9.1m |
| Debtors | £2m | £2.2m |
| Source | FullAccounts · bulk data Mar 2026 | FullAccounts · bulk data Mar 2026 |
How the business works
- Profit margin
- 23.1%
- Profit ÷ revenue.
- Gross margin
- 33.8%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £159k
- Revenue ÷ average employees.
- Profit per employee
- £36.8k
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 10.9%
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- —
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- 14.3%
- 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
- ▲23%
- Now £9.5m
- Cash at bank
- ▲23%
- Now £1m
- Headcount
- ▲4%
- Now 95
- Deferred income
- —
- Now —
- Fixed assets
- ▼1%
- Now £1.7m
Group structure
Ownership chain
- Gill Corporate Limitedultimate parent75–100%
- Gill Instruments Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Sister companies (3)
- Gill Research & Development LimitedFigures not disclosed
- Gill Sensors & Controls LimitedFigures not disclosed
- Labcal LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Similar profitable businesses
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- Profit
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- E C M Systems LimitedLondon · Manufacture of electronic components
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Sources
Latest figures from FullAccounts for the year to 31 Oct 2025 (profit £3.5m), 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.