Woman in private hospital speaking to a male doctor
Private Hospitals

UK Private Hospitals: Compare The Leading Groups

Updated July 2026

Private hospitals in the UK offer shorter waiting times, more choice over your consultant, and a more comfortable environment than the NHS typically provides, for both insured and self-pay patients. But "private hospital" isn't one single thing, the UK market is dominated by five major groups, each with a genuinely different size, model and specialism.

In this guide, we compare the leading UK private hospital groups, what they're actually known for, and how to work out which hospitals your own health insurance policy would actually give you access to.

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Why It's Growing

The Rise Of Private Healthcare In The UK

Demand for private healthcare has risen steadily, driven by longer NHS waiting times, a growing desire for personalised care, and increasingly affordable private medical insurance. Private hospitals have responded by expanding their networks, investing in modern technology, and offering specialised treatments not always available on the NHS.

Compared

UK Private Hospital Groups Compared

The five groups below make up the vast majority of UK private hospital capacity.

GroupHospitalsModelBest Known For
Circle Health Group~54For-profit (formerly BMI Healthcare)Largest UK network, widest geographic access
Spire Healthcare~38-40 + 8 clinicsFor-profit, listed companyBroad specialisms, strong brand recognition
Nuffield Health~37 + 113 fitness centresNot-for-profitCombined hospital + fitness model, reinvested surplus
HCA Healthcare UK~7 + 50+ clinicsFor-profitComplex, high-acuity care, mainly London and Manchester
Ramsay Health Care UK~32-35For-profit, international groupDay-case and outpatient care

Figures are approximate and can change due to acquisitions, closures or new openings. Circle Health Group was formed when Circle Health acquired BMI Healthcare in 2019-2020 and rebranded the combined network, if you're used to the "BMI" name, this is the same group under new branding.

Leading Groups

Leading Private Hospital Groups In The UK

A closer look at each of the five major groups.

Circle Health Group logo

Circle Health Group

The UK's largest private hospital provider, operating around 54 hospitals and clinics across England, Scotland and Wales. Formed when Circle Health acquired BMI Healthcare and rebranded the combined network. Offers a comprehensive range of treatments from orthopaedics to cardiology.

Spire Healthcare logo

Spire Healthcare

A major listed provider with around 38-40 hospitals and 8 clinics, known for a wide range of specialisms and strong brand recognition. A common choice across most standard insurer hospital lists.

Nuffield Health logo

Nuffield Health

A not-for-profit organisation running around 37 hospitals alongside 113 fitness and wellbeing centres. Reinvests surplus into facilities and community health work, with a genuinely integrated approach linking hospital care to fitness.

HCA Healthcare UK logo

HCA Healthcare UK

A smaller network of around 7 hospitals, including the Harley Street Clinic and The Wellington Hospital, concentrated mainly in London and Manchester. Focused on complex, high-acuity care, often the most expensive tier and frequently excluded from standard insurance policies.

Ramsay Health Care UK logo

Ramsay Health Care UK

Part of the international Ramsay Health Care Group, operating around 32-35 UK hospitals with a strong focus on day-case and outpatient procedures.

The Benefits

Benefits Of Choosing A Private Hospital

Beyond the hospital group itself, here's what private care genuinely offers.

Shorter Waiting Times

Reduced waits for consultations, diagnostics and surgical procedures compared to the NHS.

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Personalised Care

Greater continuity and more direct access to your specialist throughout treatment.

Modern Facilities

Significant investment in advanced medical technology and up-to-date facilities.

Comfort & Choice

Private rooms, additional amenities, and often the option to choose your preferred consultant.

How To Choose

Choosing The Right Private Hospital

When selecting a private hospital, consider the range of services offered, the hospital's reputation, the qualifications of its medical staff, and the facilities available. It's worth reviewing patient outcomes and seeking a recommendation from your GP or specialist where possible.

The Care Quality Commission (CQC) is the independent regulator of health and adult social care in England, inspecting and rating both NHS and private hospitals, with powers to act where care falls short. For pricing and outcomes data specifically, PHIN (the Private Healthcare Information Network) is the government-mandated body that publishes independent private healthcare cost and quality data, genuinely the most authoritative source for comparing hospitals directly.

Worth understanding about CQC ratings

The CQC rates individual hospital sites in England, not entire company brands, so there's no single official "score" for a whole group like Circle or Spire, ratings can genuinely differ from one of their hospitals to the next. Scottish hospitals aren't covered by the CQC at all. In practice, hospitals across all five major groups typically rate "Good" or "Outstanding," so it's worth checking the actual rating for the specific hospital you'd be treated at, rather than relying on the group's reputation alone.

Worth Knowing

Does My Health Insurance Cover These Hospitals?

Not automatically, and this genuinely trips people up.

Insurers don't give you access to every private hospital by default. Most structure access through tiered hospital lists, standard policies typically include a wide range of Spire, Circle, Nuffield and Ramsay hospitals, while premium, central London hospitals, including most HCA Healthcare UK sites, are frequently excluded from standard policies and require an upgraded hospital list, usually at a higher premium.

This is exactly why comparing hospital lists matters as much as comparing price when you're choosing a policy, a cheaper premium with a restricted list might not actually cover the hospital you'd want to use.

Worth checking before you buy

If there's a specific hospital you'd want to use, check it's actually included on the insurer's chosen hospital list for the specific plan you're comparing, not just assumed because the insurer's website mentions that hospital group generally.

FAQs

Private Hospitals FAQs

What happened to BMI Healthcare?

BMI Healthcare was acquired by Circle Health in 2019-2020 and the combined network was rebranded as Circle Health Group, now the UK's largest private hospital provider with around 54 hospitals and clinics. If a hospital used to be called "BMI [Name]," it's very likely now part of Circle Health Group under a new name, many patients still search using the old BMI name, but it's the same hospital, same building, largely the same consultants. If you're trying to identify a specific former BMI hospital, Circle Health Group's own hospital finder tool will show you its current name.

How do I find a private hospital near me?

Each major group publishes its own hospital finder tool on its website, Circle Health Group, Spire Healthcare, Nuffield Health, HCA Healthcare UK and Ramsay Health Care UK all let you search by location and see which sites are nearest to you. For independent detail on a specific hospital, including its CQC rating and published pricing, PHIN (Private Healthcare Information Network) is the most authoritative source, rather than relying solely on the hospital group's own marketing. It's also worth remembering that which hospitals are actually available to you depends on your health insurance policy's chosen hospital list, so it's worth checking that alongside simple proximity before assuming a nearby hospital is covered.

Which is the biggest private hospital group in the UK?

Circle Health Group, with around 54 hospitals and clinics across England, Scotland and Wales, formed from the 2019-2020 merger of Circle Health and BMI Healthcare. Spire Healthcare is the second largest by hospital count, with around 38-40 hospitals plus roughly 8 clinics. Nuffield Health runs a comparable network of around 37 hospitals, but on a not-for-profit basis, alongside 113 fitness and wellbeing centres. Ramsay Health Care UK operates around 32-35 hospitals with a strong focus on day-case procedures, while HCA Healthcare UK is by far the smallest by hospital count, around 7 sites, but focuses on complex, high-acuity care concentrated mainly in London and Manchester, so it competes on specialism and reputation rather than sheer geographic spread.

Will my health insurance cover treatment at any private hospital?

Not automatically. Insurers structure access through tiered hospital lists rather than giving blanket access to every private hospital in the country. Standard policies typically cover a wide range of Spire, Circle, Nuffield and Ramsay hospitals, giving genuinely broad geographic coverage for most common procedures. Premium hospitals, particularly central London HCA Healthcare UK sites like the Harley Street Clinic or The Wellington Hospital, are frequently excluded from standard policies and only available if you've chosen an upgraded hospital list, usually at a noticeably higher premium. This is exactly why comparing hospital lists matters as much as comparing headline price, a cheaper policy with a restricted list might not actually give you access to the specific hospital you'd want to use.

What's the difference between Spire, Nuffield and HCA?

Spire and Nuffield are the two largest by hospital count and offer broadly similar pricing for routine procedures like hip or knee replacements. Nuffield is run on a not-for-profit basis and combines hospital care with an extensive network of fitness centres, reinvesting surplus back into facilities and community health work rather than distributing profit to shareholders. Spire is a listed, for-profit company with strong brand recognition and a wide range of specialisms. HCA Healthcare UK is a different proposition entirely, a much smaller network concentrated mainly in London and Manchester, focused on complex, high-acuity care and world-renowned specialists, and typically the most expensive of the three, often requiring an upgraded insurance policy to access at all.

How do I check if a private hospital is any good?

The Care Quality Commission (CQC) inspects and rates both NHS and private hospitals in England, using categories like Safe, Effective, Caring, Responsive and Well-led, with an overall rating of Outstanding, Good, Requires Improvement or Inadequate for each individual site. For cost and outcomes data specifically, PHIN (the Private Healthcare Information Network) is the government-mandated body publishing independent private healthcare data, genuinely the most authoritative resource for comparing hospitals directly on price and performance, rather than relying on marketing claims from the hospital group itself. It's worth checking the rating for the exact hospital you'd be treated at, since ratings can vary meaningfully even between two hospitals in the same group.

Can I choose which private hospital I'm treated at?

Usually yes, within your insurer's chosen hospital list. Some policies work on a "standard" basis, where you select from a set list of two or three hospitals when you first join, based on your location, preferred facilities and budget, and you can then use any hospital on that list when you claim. Others work on a "guided" or insurer-led basis instead, where your hospital is chosen at the point of claiming with the insurer's help, using an open GP referral that recommends the treatment type without naming a specific hospital upfront, this route is often more cost-effective. It's worth understanding which approach your specific policy uses before you actually need to claim, rather than assuming.

Do hospital groups like Circle or Spire have an overall CQC rating?

No, not officially. The CQC rates individual hospital sites in England, not entire company brands, so ratings can genuinely vary from one hospital to the next even within the same group, and Scottish hospitals aren't covered by the CQC at all since it's an England-specific regulator. One independent source reports Nuffield Health achieving 100% "Good" or "Outstanding" ratings across its estate, though this isn't an official published CQC figure, more a summary claim worth treating with appropriate caution. In practice, hospitals across all five major groups typically rate "Good" or "Outstanding," so it's genuinely more useful to check the rating for the specific hospital you'd actually be treated at than to rely on a group's overall reputation.

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Sources & Disclaimer

Written by: Darren Lewis, health insurance specialist and founder of Compare My Health Insurance. Last reviewed: July 2026. Next scheduled review: January 2027.

Sources: Independent 2026 UK private healthcare market research, PHIN (Private Healthcare Information Network) published data, CQC guidance, and publicly available hospital group information. Hospital counts are approximate and can change due to acquisitions, closures or new openings.

Compare My Health Insurance works with FCA-regulated broker partners and may earn a fee when you take out a policy through our service. This does not affect our editorial content above. Any information on this page is for general information only and should not be considered financial or medical advice, regulated advice or a personal recommendation. Suitability depends on your individual circumstances, needs and budget.

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