Teledyne Gas Measurement Instruments Limited
Registered name: TELEDYNE GAS MEASUREMENT INSTRUMENTS LIMITED
Part of Teledyne Technologies Incorporated groupTeledyne Gas Measurement Instruments Limited made £20.8m revenue and £5.1m profit in the year to 28 Dec 2025.
Teledyne Gas Measurement Instruments Limited’s revenue grew 12% to £20.8m in the year to 28 Dec 2025, with £5.1m profit and 76 employees. The company is classified under “manufacture of other electrical equipment”; we hold 4 years of its filed accounts.
- Status
- Active
- Age
- 79 yrs · since 1947
- Type
- Private Limited Company
Key figures
Financial history
| Year to | 29 Dec 2023 | 28 Dec 2024 | 29 Dec 2024 | 28 Dec 2025 |
|---|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L | Full P&L |
| Profit & loss | ||||
| Revenue (turnover) | £18.2m | £18.6m | £18.6m | £20.8m |
| Cost of sales | −£10.1m | −£10.3m | −£10.3m | −£10.7m |
| Gross profit | £8.1m | £8.3m | £8.3m | £10.2m |
| Operating profit | £3.9m | £4.3m | £4.3m | £6.4m |
| Profit before tax | £3.9m | £4.6m | £4.6m | £7m |
| Profit after tax | £3m | £3.4m | £3.4m | £5.1m |
| Profit (best available) | £3m | £3.4m | £3.4m | £5.1m |
| Employees (average) | 92 | 84 | 84 | 76 |
| Ratios | ||||
| Profit margin | 16.5% | 18.4% | 18.4% | 24.4% |
| Gross margin | 44.4% | 44.5% | 44.5% | 48.8% |
| Revenue per employee | £198k | £221k | £221k | £274k |
| Profit per employee | £32.7k | £40.8k | £40.8k | £66.9k |
| Growth (year on year) | ||||
| Revenue growth | — | ▲1.9% | — | ▲12% |
| Profit growth | — | ▲14% | — | ▲48.4% |
| Headcount growth | — | ▼8.7% | — | ▼9.5% |
| Balance sheet — indirect signals, not revenue | ||||
| Net assets | — | — | — | — |
| Source | Accounts · bulk data Sep 2025 | Accounts · bulk data Oct 2026 | Accounts · bulk data Sep 2025 | Accounts · bulk data Oct 2026 |
How the business works
- Profit margin
- 24.4%
- Profit ÷ revenue.
- Gross margin
- 48.8%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £274k
- Revenue ÷ average employees.
- Profit per employee
- £66.9k
- 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
- ▼10%
- Now 76
- Deferred income
- —
- Now —
- Fixed assets
- —
- Now —
Group structure
Ownership chain
- Teledyne Technologies Incorporated (registered outside the UK register)ultimate parent75–100%
- Rhombi Holdings Limited75–100%
- Teledyne Gas Measurement Instruments Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Subsidiaries (1)
- Gas Performance Testing Services LtdFigures not disclosed
Sister companies (10)
- DD-Scientific Holdings LimitedRev. £10.2m · Profit £1.9m
- Gmi Group Holdings LimitedFigures not disclosed
- Lightsource Holdco LimitedLiquidationFigures not disclosed
- Qioptiq LimitedFigures not disclosed
- Raymarine UK LimitedFigures not disclosed
- Rihl LimitedFigures not disclosed
- Teledyne C.M.L. Group LimitedFigures not disclosed
- Teledyne Labtech LimitedFigures not disclosed
- Teledyne UK LimitedFigures not disclosed
- Teledyne Valeport Holdings 2019 LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Sources
Latest figures from accounts for the year to 28 Dec 2025 (profit £5.1m), from the Companies House accounts bulk data published Oct 2026. Spotted an error? Request a correction.
Updated from Companies House on 20 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.