Highest net-margin companies (UK)
Companies with the highest trailing net profit margin. Delayed fundamentals from market data, shown with their as-of date.
Ranked by net margin, Ashmore Group (ASHM.L) leads the covered catalog at +58.9%.
| # | Company | Sector | Net margin | Operating margin | Market cap |
|---|---|---|---|---|---|
| 1 | Ashmore Group (ASHM.L) | — | +58.9% | n/a | n/a |
| 2 | Autotrader Group (AUTO.L) | — | +47.1% | n/a | £5.5B |
| 3 | AJ Bell (AJB.L) | — | +33.1% | n/a | £3.2B |
| 4 | British American Tobacco (BATS.L) | — | +30.3% | n/a | n/a |
| 5 | Aberdeen Group (ABDN.L) | — | +29.7% | n/a | £6.3B |
| 6 | Antofagasta plc (ANTO.L) | — | +24.0% | n/a | n/a |
| 7 | Alfa Financial Software (ALFA.L) | — | +23.8% | n/a | n/a |
| 8 | Atalaya Mining (ATYM.L) | — | +17.7% | n/a | n/a |
| 9 | AstraZeneca (AZN.L) | — | +17.4% | n/a | £251.0B |
| 10 | Airtel Africa (AAF.L) | — | +12.7% | n/a | £16.2B |
| 11 | A.G. Barr (BAG.L) | — | +10.7% | n/a | n/a |
| 12 | BAE Systems (BA.L) | — | +7.6% | n/a | £91.0B |
| 13 | Associated British Foods (ABF.L) | — | +5.4% | n/a | £20.2B |
| 14 | Babcock International (BAB.L) | — | +4.1% | n/a | n/a |
| 15 | Avon Technologies (AVON.L) | — | +3.3% | n/a | n/a |
| 16 | Balfour Beatty (BBY.L) | — | +2.8% | n/a | £5.5B |
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Data: London Stock Exchange market data (delayed daily-close). Every figure is shown with its as-of date on the company page; a company with no data for this metric is excluded from the ranking, never estimated.
Last updated 2026-08-15 — rankings shift as the underlying data refreshes.
Informational only — NOT financial advice. All figures are delayed daily-close data from London Stock Exchange market data, shown with their as-of date.