Icon Clinical Research (U.K.) Limited
Registered name: ICON CLINICAL RESEARCH (U.K.) LIMITED
Part of Icon Plc groupIcon Clinical Research (U.K.) Limited made £105m revenue and £5.5m profit in the year to 31 Dec 2024.
Icon Clinical Research (U.K.) Limited’s revenue grew 28% to £105m in the year to 31 Dec 2024, with £5.5m profit and 845 employees. The company is classified under “other research and experimental development on natural sciences and engineering” and is based in Reading; we hold 3 years of its filed accounts.
- Status
- Active
- Location
- Reading
- Age
- 36 yrs · since 1990
- Type
- Private Limited Company
Key figures
Financial history
| Year to | 31 Dec 2022 | 31 Dec 2023 | 31 Dec 2024 |
|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L |
| Profit & loss | |||
| Revenue (turnover) | £67.9m | £82.6m | £105m |
| Cost of sales | −£62.4m | −£75.1m | −£96.7m |
| Operating profit | −£10.5m | −£8.2m | £7.7m |
| Profit before tax | −£10.4m | −£8.2m | £7.8m |
| Profit after tax | −£12.5m | −£9.9m | £5.5m |
| Profit (best available) | −£12.5m | −£9.9m | £5.5m |
| Employees (average) | 555 | 540 | 845 |
| Ratios | |||
| Profit margin | −18.5% | −11.9% | 5.2% |
| Revenue per employee | £122k | £153k | £125k |
| Profit per employee | −£22.6k | −£18.2k | £6.5k |
| Growth (year on year) | |||
| Revenue growth | — | ▲21.5% | ▲27.5% |
| Headcount growth | — | ▼2.7% | ▲56.5% |
| Balance sheet — indirect signals, not revenue | |||
| Net assets | — | — | — |
| Source | Accounts · bulk data Mar 2025 | Accounts · bulk data Mar 2025 | Accounts · bulk data Jan 2026 |
How the business works
- Profit margin
- 5.2%
- Profit ÷ revenue.
- Gross margin
- —
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £125k
- Revenue ÷ average employees.
- Profit per employee
- £6.5k
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- —
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- —
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- —
- 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 —
- Cash at bank
- —
- Now —
- Headcount
- ▲56%
- Now 845
- Deferred income
- —
- Now —
- Fixed assets
- —
- Now —
Group structure
Ownership chain
- Icon Plc (registered outside the UK register)ultimate parent75–100%
- Icon Clinical Research Holdings (U.K.) Limited50–75%
- Icon Clinical Research (U.K.) Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Subsidiaries (7)
- VSK (Kenilworth) LimitedRev. £0 · Profit £391
- Aptiv Solutions (UK) LtdFigures not disclosed
- Docs International UK LimitedFigures not disclosed
- Icon Clinical (UK) LimitedFigures not disclosed
- Icon Clinical Research (U.K.) No. 2 LimitedFigures not disclosed
- Icon Clinical Research (U.K.) No. 3 LimitedFigures not disclosed
- Icon Development Solutions LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Sources
Latest figures from accounts for the year to 31 Dec 2024 (profit £5.5m), from the Companies House accounts bulk data published Jan 2026. Spotted an error? Request a correction.
Updated from Companies House on 23 Oct 2026
Contains public sector information from Companies House licensed under the Open Government Licence v3.0. Data from Companies House, © Crown copyright. View the licence.