Mainstream Measurements Limited
Registered name: MAINSTREAM MEASUREMENTS LIMITED
Part of Melius Holdings Ltd groupMainstream Measurements Limited does not publish its revenue or profit. Its accounts to 31 Mar 2025 show net assets of £1.8m and 6 employees.
Mainstream Measurements Limited did not publish its revenue or profit — small companies aren’t required to file a profit & loss account. Its accounts for the year to 31 Mar 2025 showed net assets of £1.8m and 6 employees. The company is classified under “manufacture of electronic industrial process control equipment” and is based in Port Talbot; we hold 2 years of its filed accounts.
- Status
- Active
- Location
- Port Talbot, Wales
- Age
- 26 yrs · since 2000
- 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
Revenue not disclosed
Mainstream Measurements Limited’s accounts for the year to 31 Mar 2025 contain a balance sheet but no profit & loss account, so its revenue and profit are not public. UK small and micro-entity companies are not required to publish a P&L — this is normal and says nothing about how the business is performing.
We never estimate revenue. Below you’ll find the balance-sheet figures that were filed — useful as indirect signals of momentum, but they are not revenue or profit.
- Employees
- 6
- Net assets
- £1.8m
Badges are automated estimates derived from the filed figures — not statements of fact about the company.
Financial history
| Year to | 31 Mar 2024 | 31 Mar 2025 |
|---|---|---|
| Disclosure | No P&L | No P&L |
| Profit & loss | ||
| Revenue (turnover) | — | — |
| Profit (best available) | — | — |
| Employees (average) | 6 | 6 |
| Ratios | ||
| Profit margin | — | — |
| Growth (year on year) | ||
| Headcount growth | — | 0% |
| Balance sheet — indirect signals, not revenue | ||
| Cash at bank | £906k | £876k |
| Net assets | £1.6m | £1.8m |
| Fixed assets | £2.4k | £9.3k |
| Current assets | £1.8m | £2m |
| Debtors | £725k | £978k |
| Source | AbridgedAccounts · bulk data Dec 2025 | AbridgedAccounts · bulk data Dec 2025 |
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
- ▲10%
- Now £1.8m
- Cash at bank
- ▼3%
- Now £876k
- Headcount
- 0%
- Now 6
- Deferred income
- —
- Now —
- Fixed assets
- ▲293%
- Now £9.3k
Group structure
Ownership chain
- Melius Holdings Ltd (registered outside the UK register)ultimate parent75–100%
- Rototherm Group Limited75–100%
- The British Rototherm Company Limited75–100%
- Mainstream Measurements Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Subsidiaries (1)
- Croma Developments LimitedActive - Proposal to Strike offFigures not disclosed
Sister companies (2)
- Bentley Instrument Company LimitedRev. — · Profit £13.5k
- Micronics LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
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Sources
Latest figures from AbridgedAccounts for the year to 31 Mar 2025, from the Companies House accounts bulk data published Dec 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.