Gemmix Limited
Registered name: GEMMIX LIMITED
Part of Holcim Participations (UK) Limited groupGemmix Limited made £17.2m revenue and £206k profit in the year to 31 Dec 2025.
Gemmix Limited’s revenue was £17.2m in the year to 31 Dec 2025, with £206k profit and 54 employees. The company is classified under “manufacture of ready-mixed concrete” and is based in Coalville; we hold 5 years of its filed accounts.
- Status
- Active
- Location
- Coalville, East Midlands
- Age
- 24 yrs · since 2001
- 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 Mar 2022 | 31 Mar 2023 | 31 Mar 2024 | 31 Mar 2025 | 31 Dec 2025 |
|---|---|---|---|---|---|
| Disclosure | No P&L | No P&L | No P&L | Full P&L | Full P&L |
| Profit & loss | |||||
| Revenue (turnover) | — | — | — | £19.6m | £17.2m |
| Cost of sales | — | — | — | £14.2m | £12.7m |
| Gross profit | — | — | — | £5.4m | £4.5m |
| Operating profit | — | — | — | £746k | £477k |
| Profit before tax | — | — | — | £651k | £308k |
| Profit after tax | — | — | — | £483k | £206k |
| Profit (best available) | — | — | — | £483k | £206k |
| Staff costs | — | — | — | £2.3m | £2.1m |
| Employees (average) | 20 | 25 | 27 | 48 | 54 |
| Ratios | |||||
| Profit margin | — | — | — | 2.5% | 1.2% |
| Gross margin | — | — | — | 27.4% | 26.4% |
| Revenue per employee | — | — | — | £408k | £319k |
| Profit per employee | — | — | — | £10.1k | £3.8k |
| Growth (year on year) | |||||
| Headcount growth | — | ▲25% | ▲8% | ▲77.8% | — |
| Balance sheet — indirect signals, not revenue | |||||
| Cash at bank | £662k | £570k | £307k | £41.7k | £753k |
| Net assets | £681k | £1.2m | £1.2m | £1m | £2.1m |
| Fixed assets | £2m | £1.5m | £1.8m | £2.2m | £1.8m |
| Current assets | £2.2m | £2.4m | £2.3m | £3.8m | £3.9m |
| Debtors | £974k | £1.6m | £1.4m | £3.3m | £2.7m |
| Deferred income | £96.3k | £17.2k | £22k | £41.9k | £118k |
| Source | FullAccounts · bulk data Dec 2023 | FullAccounts · bulk data Dec 2023 | FullAccounts · bulk data Dec 2024 | FullAccounts · bulk data Dec 2025 | FullAccounts · bulk data Sep 2026 |
How the business works
- Profit margin
- 1.2%
- Profit ÷ revenue.
- Gross margin
- 26.4%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £319k
- Revenue ÷ average employees.
- Profit per employee
- £3.8k
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 10.5%
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- 0.7%
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- 15.4%
- 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 £2.1m
- Cash at bank
- —
- Now £753k
- Headcount
- —
- Now 54
- Deferred income
- —
- Now £118k
- Fixed assets
- —
- Now £1.8m
Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.
Group structure
Ownership chain
- Holcim Participations (UK) Limitedultimate parent75–100%
- Holcim UK Holdings 1 Limited75–100%
- Holcim UK Holdings 2 Limited75–100%
- Holcim UK Limited75–100%
- T & J Thory Holdings Ltd75–100%
- Gemmix Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Sister companies (2)
- P.J. Thory LimitedRev. £24.1m · Profit −£5.7m
- Pro Mini Mix LtdRev. — · Profit £61.2k
From the Persons with Significant Control register (corporate controllers only).
Similar profitable businesses
- Ready Mix Specialists LimitedLondon · Manufacture of ready-mixed concrete
- Revenue
- £18.2m
- Profit
- £477k
- Staff
- 28
- Mincrete LimitedStoke-on-Trent · Manufacture of ready-mixed concrete
- Revenue
- £14m
- Profit
- £242k
- Staff
- 37
- Dependable Concrete (North West) LimitedBirkenhead · Manufacture of ready-mixed concrete
- Revenue
- £21.3m
- Profit
- £1.2m
- Staff
- 53
- Andrew Hopkins Concrete LimitedNR Yeovil · Manufacture of ready-mixed concrete
- Revenue
- £11.8m
- Profit
- £278k
- Staff
- 46
- Eastern Concrete LimitedStowmarket · Manufacture of ready-mixed concrete
- Revenue
- £30m
- Profit
- £558k
- Staff
- 103
- The Concrete Company (Thorney) LimitedPeterborough · Manufacture of ready-mixed concrete
- Revenue
- £9.8m
- Profit
- £245k
- Staff
- 40
Sources
Latest figures from FullAccounts for the year to 31 Dec 2025 (profit £206k), from the Companies House accounts bulk data published Sep 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.