The insurance sector has a significant weight in the UK economy, thus directly and indirectly influencing the country’s economy. Also, UK insurance companies play an important role globally through risk management. Below are the 10 UK largest insurance companies by market capitalisation.
Prudential plc is the largest insurer in UK by market capitalization. Legal & General is the second-largest insurer in UK. Aviva plc is the third largest insurec in the country, followed by Admiral Group, Phoenix Group and Direct Line Insurance Group. The total market capitalization of the top 6 UK insurance is about GBP 93.2 billion.
| Rank | Company | Market Cap. |
| 1 | Prudential plc | £40.9 B |
| 2 | Legal & General | £17.5 B |
| 3 | Aviva plc | £15.4 B |
| 4 | Admiral Group | £8.7 B |
| 5 | Phoenix Group | £6.7 B |
| 6 | Direct Line Insurance Group | £4.0 B |
The data used, in the rankings of UK insurance companies by market capitalisation were collected from the main financial sites. The data of market cap are expressed in billions of GBP for all insurance companies and refers to 01/11/2021.