Aviva traces its corporate heritage back over 320 years (through predecessor companies including the Hand-in-Hand Fire & Life Insurance Society, founded 1696) and covers around 1.2 million people for private healthcare in the UK. That makes them the third largest UK health insurer after Bupa and AXA, two insurers we compare in more detail in our AXA Health vs Bupa guide. Their flagship product, Healthier Solutions, holds a Defaqto 5-star rating at its top tier and has won industry awards including from Moneyfacts in recent years.
At time of writing (May 2026), Aviva scores around 4.3 out of 5 on Trustpilot from over 55,000 reviews, though that score covers all Aviva products, not health insurance alone. When you filter for health-only reviews, the picture is less clear. Some clients mention slow claims and trouble reaching the right person.
Aviva also sells life insurance, pensions, annuity plans and other insurance products. They serve over 18 million UK customers across all their products. Most people who come to us already hold something with Aviva, which makes switching or adding health cover simpler.






