Top Healthtech companies in London

Companies building software and devices for clinicians, patients, and payers. Filtered to companies headquartered in London.

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Built from a search like: “Top Healthtech companies in London”

Ranked by current headcount across Healthtech companies headquartered in London. Refreshed monthly.

1
NHS England· London, England, United Kingdom
We lead the NHS in England to deliver high quality services for all. Find out more. www.england.nhs.uk
- 60.3k employees
- Founded 2012
2
Bupa UK· London, England, United Kingdom
Established in 1947, Bupa's purpose is helping people live longer, healthier, happier lives and making a better world. We are a healthcare company serving millions of customers. With no shareholders, we reinvest profits into providing more and better healthcare for the benefit of current and future customers. For more information, visit www.bupa.co.uk
- 20.3k employees
- Founded 1947
3
Guy's and St Thomas' NHS Foundation Trust· Newington, Waterloo, London Bridge, Southwark, Lambeth North, New Kent Road, Westminster Bridge, Southwark Cathedral, Lambeth, Old Kent Road, South Bank, Borough, Bermondsey, England, United Kingdom
One of the largest Trusts in the UK, Guy’s and St Thomas’ NHS Foundation Trust comprises five of the UK’s best known hospitals – Guy’s, St Thomas’, Evelina London Children’s Hospital, Royal Brompton and Harefield – as well as community services in Lambeth and Southwark, all with a long history of high quality care, clinical excellence, research and innovation.We work closely with a wide range of health and care partners to deliver the best care to our local population, and we play an active role in the integrated care systems (ICS) in south east and north west London.We have a long tradition of clinical and scientific achievement and – as part of King’s Health Partners – we are one of England’s eight academic health sciences centres (AHSCs), bringing together world-class clinical services, teaching and research.We are rated Good overall by the Care Quality Commission, and have one of the lowest mortality rates in the country.With around 23,900 staff, we are one of the largest employers locally. We aim to reflect the diversity of the local communities we serve and continue to develop new and existing partnerships with local people, patients, neighbouring NHS organisations, local authorities and charitable bodies and GPs.The dedication and skills of our employees lie at the heart of our organisation. We strive to recruit and retain the best staff to ensure that our services are high quality, safe and patient focused.
- Grant
- 11.7k employees
- Founded 1993
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4
Nuffield Health· London, England, United Kingdom
Welcome to Nuffield Health, the UK’s leading not-for-profit healthcare organisation*.As a not-for-profit with no shareholders, we invest all our income back into our family of award-winning 37 hospitals, 114 fitness and wellbeing clubs, healthcare clinics, over 200 workplace wellbeing services, as well as developing flagship collaborations supporting our communities – all to realise our vision to build a healthier nation.What makes us unique is our unrivalled award winning and industry leading network of health and wellbeing services. Only Nuffield Health has the wide-ranging expertise to provide connected care. We attract some of the best people in their specialist fields, who take a personalised approach so we can provide the best possible care and support now and in the future – wherever they are on their journey. All for the public benefit. So, it’s no surprise that we’re trusted by the NHS, Private Medical Insurers, employers and the general public to provide exceptional health and wellbeing services to the nation. We’re committed to our vision of building a healthier nation.Welcome to Nuffield Health. Specialists in you.* Nuffield Health is a Registered Charity. Our objective is to advance, promote and maintain health and healthcare of all descriptions and to prevent, relieve and cure sickness and ill health of any kind, all for the public benefit. Registered Charity Numbers 205533 (England and Wales) and SC041793 (Scotland).
- Debt
- 9.2k employees
5
Virgin Active· London, England, United Kingdom
Virgin Active is a globally recognised exercise brand with over 230 clubs in 8 countries and more than 1.2 million members. As part of the Virgin Group founded by Sir Richard Branson, Virgin Active disrupted the UK fitness industry in 1999 by creating large health clubs offering an unprecedented number of world-class health and fitness products and services all under one roof. We now operate 38 clubs in the UK with an unparalleled collection of iconic locations in London and around the UK. A global industry leader for two decades, Virgin Active UK continues to innovate by developing a more personalised gym, multi-boutique experience and purpose to inspire people to live an active life.We’re always on the hunt for unique individuals with bucket loads of talent. If you’ve got what it takes or want to share an idea you think could be great, we’re all ears.
- Private equity
- 7.8k employees
- Founded 1999

6
London Health Sciences Centre (LHSC)· London North (UWO), Ontario, Canada
One of Canada’s largest acute care teaching hospitals, London Health Sciences Centre (LHSC) cares for the most medically complex and critically ill patients in the region. For 139 years, our hospitals have been improving the patient and family experience for the people of London, Southwestern Ontario and beyond. LHSC is home to Children’s Hospital, University Hospital, Victoria Hospital, the Kidney Care Centre, two family medical centres, and two research institutes – Children’s Health Research Institute and Lawson Health Research Institute. We offer the broadest range of specialized clinical services in Ontario.LHSC continues to be a leader in driving discovery and innovation. Our staff, physicians and scientists are recognized internationally for the significant contributions they have made towards the advancement of health care, and we train thousands of health care professionals from across Canada and the world. The hospital’s nearly 15,000 staff, physicians, students and volunteers provide care for more than one million patient visits a year. We strive to deliver the highest standard of patient care through exceptional experiences, extraordinary people and engaging partnerships. Thank you for taking the time to visit LHSC’s LinkedIn page. Please review our social media commenting policy and terms of use at: http://www.lhsc.on.ca/About_Us/LHSC/Privacy_Terms/Social_Media_Policy.htm.
- 7.1k employees
7
Spire Healthcare Group plc· London, England, United Kingdom
Spire Healthcare is a leading, independent healthcare group in the United Kingdom, running 38 hospitals and over 60 clinics across England, Wales and Scotland. Working in partnership with over 8,800 experienced consultants, Spire Healthcare delivered tailored, personalised care to over 1.36 million inpatients, outpatients and day case patients, and workplace health clients, in 2025. It is the leading private provider, by volume, of knee and hip operations in the United Kingdom.We operate a network of private GPs and provides workplace health services to over 1,400 employers. We also delives a range of private, NHS and employer-funded mental health, musculoskeletal and dermatological services, and are the largest independent provider of NHS talking therapies in England.Official Healthcare Services Partner of Team GB
- Post-IPO equity
- 6.7k employees
- Founded 2007
8
Barchester Healthcare· London, England, United Kingdom
Founded in 1992, Barchester started with just one care home. Today, we're proud to have over 260 care homes and six independent hospitals across England, Scotland and Wales that continually meet and exceed all relevant regulatory compliance standards. We deliver exceptional levels of care to over 13,000 residents and patients and we employ over 19,000 dedicated people across the entire organisation.We have continued to remain at the forefront of the UK’s private healthcare sector by providing award-winning care and investing in our employees through training, continuous development and sector-leading rewards packages. We are also proud to be an Above National Living Wage Employer. With an extensive new build growth plan in place, we’re on track to opening 10 new care homes each year, for the next five years. But we can’t continue to thrive without the right people.We promote equal opportunities to our prospective and existing employees and display the Disability Confident logo with pride. We are also the only healthcare provider to be accredited as one of the best companies to work for in the UK by the Best Companies b-Heard Survey. With an array of awards and achievements under our belt, we know that we wouldn’t be where we are today without our people.Our residents, patients and their loved ones rely on us to deliver outstanding person-centred care and support, 24 hours a day, 365 days a year. In fact, every single role across our homes, hospitals and support functions is pivotal in shaping the future of our organisation.
- Debt
- 6k employees
- Founded 1992
9
Acacium Group· London, England, United Kingdom
Acacium Group is a leading global healthcare delivery partner with over 40 years of experience improving lives through healthcare, social care and life sciences services.We support the sustainability of healthcare systems worldwide by combining access to skilled workforce, advanced technology and deep sector expertise. From early-stage clinical research to community and palliative care.Our areas of expertise:💡Global health and social care workforce solutionsWe deliver permanent and temporary recruitment across acute, mental health and community care settings. With over 20,000 professionals deployed weekly, our network includes doctors, nurses, allied health professionals, and social workers, ensuring rapid, flexible support across all specialisms.💡Global health and social care managed servicesThrough the integration of workforce, data-led insight, technology and clinical governance, we design and deliver innovative care models that help providers expand their capacity and capability while maintaining high standards of safety and quality, in the community or in acute settings. 💡Global life sciences solutionsWe partner with life sciences organisations across the globe, supporting every stage of the product lifecycle, from discovery and clinical development to manufacturing and commercialisation across the drug, medical device and medical technology sectors. Why work with Acacium Group?✅A trusted partner to public and private healthcare providers worldwide✅Scalable, flexible delivery models tailored to your needs✅A purpose-led organisation committed to quality, inclusion and innovation✅Proven expertise in clinical governance, digital health solutions and complex workforce challenges➡️ Ready to elevate your workforce and service delivery? Contact us via our website.
- 5.9k employees
10
Circle Health Group· London, England, United Kingdom
Circle Health Group is the UK’s largest private hospital group, with more than 50 locations nationwide. We combine clinical excellence with peaceful surroundings, where patients are always treated as individuals.People are at the heart of everything we do – whether that’s our talented, passionate staff or the people they care for. Patients always come first, and when it comes to looking after you, being ‘good enough’ never is. We are investing millions of pounds into making our hospitals the best they can be. This funding is boosting our facilities and technology, as well as nurturing the amazing people who work for us. The investment programme saw us named Private Hospital Group of the Year in 2021. In 2021 Circle was featured in Health & Social Care’s 20 Best Companies to Work For, and also placed in the Top 25 Best Big Companies to work for. Since 2019 we have held the Silver Award in The Ministry of Defence's Armed Forces Covenant Employer Recognition Scheme.We offer more than 500 different treatments across 60 specialties, and work with a network of over 6,000 renowned consultants. When you choose to go private with us, we’ll take the time to get to know you and your individual needs, building a bespoke treatment plan that puts you front and centre.Each year we welcome around 296,000 inpatients and 1.7 million outpatients. They trust us to provide the quality, expert-led treatment they deserve. And with 98% of them saying they’ll recommend us to their loved ones, it’s clear we do just that. If you need treatment and you want to speak to a specialist, we’re here for you. Get in touch today and we aim to see you within 48 hours. Alternatively, if you are looking to join a dynamic team in a supportive environment, why not take a look at our extensive range of roles in clinical and non-clinical settings? Get in touch today!
- 5.8k employees
- Founded 2004

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Find engineers at Healthtech companies in London

London has long been a hub for Healthtech, and the list above ranks the largest Healthtech companies headquartered there by current headcount, drawn from public LinkedIn and Crunchbase records. With 2,413 matching companies in Refolk’s index, this is a good map of where the Healthtech talent in London lives - useful whether you’re recruiting, partnering, or sizing a market.

The biggest Healthtech companies in London tend to be the gravitational centres for specialised talent - senior engineers, ML researchers, applied scientists, designers - while the smaller ones compete on speed, equity, and proximity to founders.

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Refolk pulled Healthtech companies headquartered in London from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 10 employees. The list refreshes monthly.

Last refreshed: Tue, 20 Oct 2026 10:04:47 GMT

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