Southern Group Laboratory Limited
Registered name: SOUTHERN GROUP LABORATORY LIMITED
Southern Group Laboratory Limited made £6.8m revenue and £533k profit in the year to 31 Mar 2025.
Southern Group Laboratory Limited’s revenue grew 16% to £6.8m in the year to 31 Mar 2025, with £533k profit and 65 employees. The company is classified under “other manufacturing” and is based in Corby; we hold 2 years of its filed accounts.
- Status
- Active
- Location
- Corby, East Midlands
- Age
- 34 yrs · since 1992
- Type
- Private Limited Company
Key figures
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 | Full P&L | Full P&L |
| Profit & loss | ||
| Revenue (turnover) | £5.9m | £6.8m |
| Cost of sales | £4.3m | £4.6m |
| Gross profit | £1.6m | £2.2m |
| Operating profit | £138k | £625k |
| Profit before tax | £189k | £684k |
| Profit after tax | £234k | £533k |
| Profit (best available) | £234k | £533k |
| Staff costs | £2.1m | £2.2m |
| Employees (average) | 61 | 65 |
| Ratios | ||
| Profit margin | 4% | 7.8% |
| Gross margin | 27% | 32.8% |
| Revenue per employee | £96.2k | £105k |
| Profit per employee | £3.8k | £8.2k |
| Cash conversion | 1060% | 155.9% |
| Growth (year on year) | ||
| Revenue growth | — | ▲16.1% |
| Profit growth | — | ▲127.8% |
| Headcount growth | — | ▲6.6% |
| Balance sheet — indirect signals, not revenue | ||
| Cash at bank | £1.9m | £2.4m |
| Net assets | £4.6m | £4.9m |
| Fixed assets | £1m | £970k |
| Current assets | £4.2m | £4.8m |
| Debtors | £1.1m | £1.5m |
| Deferred income | £89.3k | £84.8k |
| Cash from operations | £1.5m | £975k |
| Source | FullAccounts · bulk data Dec 2025 | FullAccounts · bulk data Dec 2025 |
How the business works
- Profit margin
- 7.8%
- Profit ÷ revenue.
- Gross margin
- 32.8%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £105k
- Revenue ÷ average employees.
- Profit per employee
- £8.2k
- Profit ÷ average employees.
- Cash conversion
- 155.9%
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 14.2%
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- 1.2%
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- 21.8%
- 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
- ▲6%
- Now £4.9m
- Cash at bank
- ▲25%
- Now £2.4m
- Headcount
- ▲7%
- Now 65
- Deferred income
- ▼5%
- Now £84.8k
- Fixed assets
- ▼6%
- Now £970k
Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.
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Sources
Latest figures from FullAccounts for the year to 31 Mar 2025 (profit £533k), 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.