THX Ltd
Registered name: THX LTD
Part of THX Group Ltd groupTHX Ltd made £21.3m revenue and £2.5m profit in the year to 31 Dec 2025.
THX Ltd’s revenue grew 36% to £21.3m in the year to 31 Dec 2025, with £2.5m profit and 137 employees. The company is classified under “renting and leasing of construction and civil engineering machinery and equipment” and is based in Great Barford; we hold 4 years of its filed accounts.
- Status
- Active
- Location
- Great Barford, South East
- Age
- 16 yrs · since 2010
- 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 Dec 2022 | 31 Dec 2023 | 31 Dec 2024 | 31 Dec 2025 |
|---|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L | Full P&L |
| Profit & loss | ||||
| Revenue (turnover) | £9.7m | £12.1m | £15.7m | £21.3m |
| Cost of sales | £5m | £6m | £7.2m | £8.7m |
| Gross profit | £4.7m | £6.1m | £8.5m | £12.6m |
| Operating profit | £2m | £1.9m | £2.2m | £4m |
| Profit before tax | £1.9m | £1.8m | £2m | £3.4m |
| Profit after tax | £1.1m | £1.6m | £1.3m | £2.5m |
| Profit (best available) | £1.1m | £1.6m | £1.3m | £2.5m |
| Employees (average) | 60 | 75 | 103 | 137 |
| Ratios | ||||
| Profit margin | 11.6% | 13.6% | 8.1% | 11.6% |
| Gross margin | 48.3% | 50.7% | 54.3% | 59.1% |
| Revenue per employee | £162k | £162k | £152k | £156k |
| Profit per employee | £18.9k | £22k | £12.4k | £18.1k |
| Cash conversion | −165.3% | −239.8% | −195.7% | — |
| Growth (year on year) | ||||
| Revenue growth | — | ▲24.4% | ▲29.6% | ▲36% |
| Profit growth | — | ▲45.7% | ▼22.5% | ▲94.2% |
| Headcount growth | — | ▲25% | ▲37.3% | ▲33% |
| Balance sheet — indirect signals, not revenue | ||||
| Cash at bank | £1.2m | £1.2m | £1m | £799k |
| Net assets | £6.6m | £7.1m | £6.8m | £8.6m |
| Fixed assets | £6.8m | £10.2m | £11.8m | £22.5m |
| Current assets | £4m | £4.1m | £5.1m | £7.4m |
| Debtors | £2.2m | £2.5m | £3m | £5m |
| Cash from operations | −£3.2m | −£4.5m | −£4.4m | — |
| Source | FullAccounts · bulk data Sep 2024 | FullAccounts · bulk data Sep 2024 | FullAccounts · bulk data Jun 2025 | FullAccounts · bulk data Sep 2026 |
How the business works
- Profit margin
- 11.6%
- Profit ÷ revenue.
- Gross margin
- 59.1%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £156k
- Revenue ÷ average employees.
- Profit per employee
- £18.1k
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 105.6%
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- —
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- 23.5%
- 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
- ▲28%
- Now £8.6m
- Cash at bank
- ▼21%
- Now £799k
- Headcount
- ▲33%
- Now 137
- Deferred income
- —
- Now —
- Fixed assets
- ▲90%
- Now £22.5m
Group structure
Ownership chain
- THX Group Ltdultimate parent75–100%
- THX Holdings Ltd75–100%
- THX Ltdthis company
Bands show the share of ownership each company holds in the one below it.
From the Persons with Significant Control register (corporate controllers only).
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Sources
Latest figures from FullAccounts for the year to 31 Dec 2025 (profit £2.5m), 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.