Private medical insurance companies in the UK: who they are and how they differ
A plain-English guide to the UK private medical insurers, what sets each one apart, and how to choose. We compare them for you at no extra cost.
There are only a handful of private medical insurance companies in the UK, and each one has a different idea of what good cover looks like. Bupa, AXA Health, Aviva and Vitality write most of the market, with WPA, The Exeter, Freedom and a few specialist insurers offering genuinely different approaches. Knowing who they are, how they are owned and what each is known for makes it far easier to find the best private health insurance for you.
This guide is a plain-English directory of the UK private medical insurers we work with, what sets each one apart, and what to check before you buy. We are a broker, not an insurer: we compare these health insurance companies for you, and using us costs nothing extra because the commission is already in the premium.
What is private medical insurance?
Private medical insurance, often called private health insurance or PMI, is an insurance product that pays for private diagnosis and treatment of acute medical conditions that begin after your cover starts. It gives you faster access to a specialist, a choice of private hospital and, on most policies, comprehensive cancer care. It works alongside the NHS rather than replacing it: emergency care, GP services and chronic conditions stay with the National Health Service.
Every UK private medical insurer sells broadly the same core product, in-patient and day-patient treatment, with optional outpatient, mental health and therapies cover. Where the insurance companies differ is in their hospital lists, how they handle pre-existing conditions, how they price at renewal, and what they add on top.
The main private medical insurance companies in the UK
Here are the leading UK health insurers, in no particular order. Benefits and terms change, so always check the current policy documents.
Bupa
Bupa is the best-known health insurer in the UK. It has no shareholders and reinvests its profits into healthcare, and it runs its own clinics and dental centres as well as insuring. Bupa health insurance is known for strong cancer cover, direct access to some treatment without a GP referral, and family pricing where you pay for the eldest child. It is rarely the cheapest at renewal, which is why long-standing Bupa customers often benefit most from a review.
AXA Health
AXA Health, formerly AXA PPP healthcare, is one of the largest private health insurers in the UK. It offers comprehensive health insurance through its personal and business plans, a guided option that lowers premiums by letting AXA choose your specialist from its network, and strong mental health and digital GP support.
Aviva
Aviva is one of the UK's largest insurers and a major private medical insurer. Its personal health insurance uses an expert-select style guided hospital and specialist network to keep premiums competitive, with optional add-ons for outpatient cover, therapies, mental health, and dental and optical.
Vitality
Vitality links health insurance to an active lifestyle. Members earn points for exercise and health checks, which unlock rewards and can reduce the premium at renewal. It suits people who will genuinely use the programme; for those who will not, the rewards add little.
WPA
WPA is a not-for-profit health insurer. It is known for flexible plans, a shared-responsibility option where you pay part of each claim in exchange for a lower premium, and well-regarded customer service. WPA Complete Health is its personal range.
The Exeter
The Exeter is a mutual, owned by its members rather than shareholders. Its private medical insurance is popular with the self-employed and with people who want straightforward cover from a smaller insurer with a strong service reputation.
Freedom Health Insurance
Freedom offers flexible, modular private medical cover, including options for people who want to build a policy around specific needs rather than buy a fixed package.
Other names you may see
- Benenden Health is a mutual offering discretionary healthcare for a fixed monthly fee. It is not private medical insurance in the usual sense, because help is provided at the society's discretion rather than as a contractual insurance claim.
- International insurers such as Cigna, Allianz Care and Bupa Global focus on expatriate and international cover rather than UK-only private health insurance.
- Cash plans such as Simplyhealth and Westfield Health pay set amounts towards everyday costs like dental and optical. They are not private medical insurance and do not pay for surgery.
How do the UK health insurance companies compare at a glance?
| Insurer | Ownership | Stand-out feature | Often suits |
|---|---|---|---|
| Bupa | No shareholders | Direct access, strong cancer cover, eldest-child pricing | Families, those wanting the widest network |
| AXA Health | Part of AXA | Guided option, mental health support | Comprehensive cover at a lower price |
| Aviva | Listed insurer | Guided hospital network, competitive pricing | Value-focused buyers |
| Vitality | Part of Discovery | Activity rewards that reduce premiums | Active people who engage with the programme |
| WPA | Not-for-profit | Shared-responsibility option | People happy to share claim costs |
| The Exeter | Mutual | Straightforward cover, service reputation | Self-employed, smaller-insurer fans |
| Freedom | Specialist insurer | Modular, flexible plans | Tailored cover |
Who is the best private medical insurance company in the UK?
There is no single best provider, and anyone who tells you otherwise is usually selling one. The best private health insurance company for you depends on your age, postcode, medical history, budget and the cover you value most. A 35-year-old who wants low cost and a guided hospital list might be best served by Aviva or AXA Health; a family of five might save most with Bupa; a keen runner might come out ahead with Vitality.
Star ratings and review scores on comparison sites are useful but limited. They rarely reflect claims experience for your specific situation, and they say nothing about how a health insurer treats long-standing customers at renewal. That is the part we see every day.
What we look at beyond the price
When we compare private medical insurers, we look at how each one handles outpatient diagnosis, cancer drugs, mental health and therapies, how their hospital lists map to where you live, and how their premiums have moved at recent renewals. Those details decide whether a policy is good value over five or ten years, not just in year one.
Not sure which insurer fits? Tell us what you need and we will compare the leading UK private medical insurers on identical cover.
Book a free PMI callHow much should private health insurance cost in the UK?
The cost of private health insurance depends on age, location, level of cover, excess, hospital list and medical history. As an illustrative guide only, monthly costs for a healthy adult can range from around £35 to £70 in your 30s and £90 to £150 or more in your 50s for mid-level cover, with comprehensive health insurance costing more. The same person can see quotes that differ by 30% or more between private medical insurers for similar cover, which is why comparing the insurance companies matters.
How to reduce the cost of health insurance
- Choose a higher excess or a shared-responsibility option.
- Use a guided or restricted hospital list.
- Add the six-week option.
- Limit outpatient cover rather than removing it.
- Review the market at every renewal.
How do I choose between private health insurance companies?
- Decide what matters most: cancer cover, mental health cover, fast diagnosis, hospital choice or lowest monthly cost.
- Check the hospital list for the private hospital you would actually use.
- Compare outpatient limits and how diagnostic tests are covered.
- Choose your underwriting: moratorium or full medical underwriting, depending on your medical history.
- Look at renewal behaviour, not just the first-year price.
- Compare quotes on identical cover across several insurers.
Can I get private medical insurance with a pre-existing condition?
Yes, but every private medical insurer will normally exclude the pre-existing condition itself, at least at first. With moratorium underwriting, a condition you have had symptoms, treatment or advice for in the last five years is excluded until you complete two clear years on the policy. With full medical underwriting, you share your full medical history up front and any exclusions are written into the policy. Insurers differ in how they treat particular conditions, so the choice of company can genuinely change what is covered.
Buying direct from a health insurer or through a broker
You can buy private health insurance direct from any of these insurance companies. Going direct means you see one insurer's products and prices. An insurance broker compares several private medical insurers at once, explains the differences in cover, and helps when you claim or renew. The premium is usually the same either way, because the broker is paid commission by the insurer.
The real value shows at renewal. One company client of ours saved 26% on its health insurance renewal by having the same cover taken to market, and a business that had been with Bupa for years, whose previous broker never shopped it, saved around £700 a month. Individual policyholders see the same pattern: the longer you stay put without checking, the more you tend to overpay.
Buying direct
- One insurer's products and prices
- You compare the policy wording yourself
- Renewal handled by the insurer that set the price
- The same premium as going through a broker
Through Montgomery Financial
- Several leading insurers compared on identical cover
- Differences explained in plain English
- Help when you claim
- Your renewal checked against the market
- No extra cost to you
Are private medical insurance companies regulated?
Yes. UK private medical insurers are authorised and regulated by the Financial Conduct Authority and the Prudential Regulation Authority, and complaints can be escalated to the Financial Ombudsman Service. Many insurers and brokers are also members of the Association of Medical Insurers and Intermediaries (AMII), the trade body for the health insurance market.
Private medical insurance companies: FAQs
How many private medical insurance companies are there in the UK?
A small number of insurers write most UK private medical insurance, led by Bupa, AXA Health, Aviva and Vitality, with WPA, The Exeter, Freedom and a few others offering alternatives.
Which UK health insurer pays out the most claims?
All major insurers pay the large majority of valid claims. Declined claims usually come down to pre-existing conditions or cover that was not included, so understanding the policy matters more than the brand.
Can I switch private medical insurance company?
Yes. You can often switch on continued personal medical exclusions terms, keeping your existing underwriting position. Do not cancel your current policy until the new one is confirmed.
Is health insurance through work with the same companies?
Usually, yes. The same private medical insurers provide company schemes offered as a perk, often on better terms than individual cover.
Which private medical insurance companies cover pre-existing conditions?
None will usually cover a pre-existing condition straight away. Under moratorium underwriting most insurers may cover it after two clear years, and a few offer specific options for certain conditions. The detail varies between companies, which is why we check it for you before you apply.
Do all health insurance companies use the same hospitals?
No. Each insurer has its own hospital list, and guided or restricted lists differ between companies. If you want a particular private hospital, we check that it is on the list you are being quoted before you buy.
Is it better to choose a big insurer or a smaller one?
Size alone does not decide it. The larger insurers offer wide networks and extras, while smaller and mutual insurers often compete on service and flexibility. The right choice depends on the cover you need and how each insurer prices someone of your age and history.
This page is general information, not a personal recommendation. Figures are illustrative only.
Find the right private medical insurer for you
Tell us about yourself, your family and the cover you want, and we will compare the leading UK private medical insurance companies on the same basis. We will explain the differences in plain English and recommend the insurer that fits, not the one that pays the most. If you already have cover, send us your renewal and we will check whether the market can do better.
Book a free PMI call