Onyx Business Parks Ltd
Registered name: ONYX BUSINESS PARKS LTD
Part of MJL Holdings SW Limited groupOnyx Business Parks Ltd made £12m revenue and a £526k loss in the year to 30 Sep 2025.
Onyx Business Parks Ltd’s revenue grew 57% to £12m in the year to 30 Sep 2025, with a loss of £526k and 8 employees. The company is classified under “activities of construction holding companies” and is based in Exeter; we hold 4 years of its filed accounts.
- Status
- Active
- Location
- Exeter, South West
- Age
- 6 yrs · since 2020
- Type
- Private Limited Company
Pass-through vehicle. This looks like a holding, staffing or umbrella company. Its revenue and profit may largely pass through to or from other entities, so the figures may not reflect a standalone operating business. It is excluded from our opportunity lists.
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. From the filing: “MJL Holdings SW Limited (previously MJL Cornwall Limited)”
Key figures
Badges are automated estimates derived from the filed figures — not statements of fact about the company.
Financial history
| Year to | 30 Jun 2022 | 30 Sep 2023 | 30 Sep 2024 | 30 Sep 2025 |
|---|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L | Full P&L |
| Profit & loss | ||||
| Revenue (turnover) | £8.7m | £5.6m | £7.7m | £12m |
| Cost of sales | £7.2m | £4.2m | £6.1m | £10.4m |
| Gross profit | £1.5m | £1.4m | £1.6m | £1.6m |
| Operating profit | £918k | £682k | £804k | £774k |
| Profit before tax | £119k | £265k | −£60.6k | −£526k |
| Profit after tax | £119k | £265k | −£60.6k | −£526k |
| Profit (best available) | £119k | £265k | −£60.6k | −£526k |
| Staff costs | £1.2k | £385k | £453k | £435k |
| Employees (average) | — | 6 | 9 | 8 |
| Ratios | ||||
| Profit margin | 1.4% | 4.8% | −0.8% | −4.4% |
| Gross margin | 17.4% | 24.8% | 20.9% | 13.2% |
| Revenue per employee | — | £927k | £851k | £1.5m |
| Profit per employee | — | £44.2k | −£6.7k | −£65.8k |
| Cash conversion | 262.1% | −613.8% | 37.1% | 604% |
| Growth (year on year) | ||||
| Revenue growth | — | — | — | ▲57.1% |
| Headcount growth | — | — | — | ▼11.1% |
| Balance sheet — indirect signals, not revenue | ||||
| Cash at bank | £70k | £27.6k | £83.4k | £1.1m |
| Net assets | −£203k | −£1m | −£1.8m | −£233k |
| Fixed assets | £32.3k | £12.6k | £4.7k | £2.7k |
| Current assets | £2.7m | £3.5m | £3.5m | £3m |
| Debtors | £15.9k | £10.2k | £9k | £303k |
| Cash from operations | £2.4m | −£4.2m | £299k | £4.7m |
| Source | Accounts · bulk data Jun 2024 | Accounts · bulk data Jun 2024 | FullAccounts · bulk data Jun 2025 | FullAccounts · bulk data Jun 2026 |
How the business works
- Profit margin
- −4.4%
- Profit ÷ revenue.
- Gross margin
- 13.2%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £1.5m
- Revenue ÷ average employees.
- Profit per employee
- −£65.8k
- Profit ÷ average employees.
- Cash conversion
- 604%
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 0%
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- —
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- 2.5%
- 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
- —
- Now −£233k
- Cash at bank
- ▲1236%
- Now £1.1m
- Headcount
- ▼11%
- Now 8
- Deferred income
- —
- Now —
- Fixed assets
- ▼43%
- Now £2.7k
Group structure
Ownership chain
- MJL Holdings SW Limitedultimate parent50–75%
- Onyx Business Parks Ltdthis company
Bands show the share of ownership each company holds in the one below it.
Subsidiaries (8)
- Burrington Estates (Eurotech House) LimitedFigures not disclosed
- Burrington Estates (Exeter Skypark) LimitedFigures not disclosed
- Burrington Estates CD (Kingskerswell) LtdFigures not disclosed
- Onyx Business Parks Barnstaple LtdFigures not disclosed
- Onyx Business Parks Exeter LtdFigures not disclosed
- Onyx Business Parks Skypark Offices LtdFigures not disclosed
- Onyx Business Parks Tolvaddon LtdFigures not disclosed
- Onyx Business Parks Wellington LtdFigures not disclosed
Sister companies (6)
- MJL Ashill LimitedFigures not disclosed
- MJL Community Homes LimitedFigures not disclosed
- MJL Contractors LimitedFigures not disclosed
- MJL Homes SW LimitedFigures not disclosed
- MJL Plant Hire (Cornwall) LimitedFigures not disclosed
- MJL Winslade LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Sources
Latest figures from FullAccounts for the year to 30 Sep 2025 (profit −£526k), from the Companies House accounts bulk data published Jun 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.