Overview
Our organisation
As one of the UK's largest and most successful NHS Foundation Trusts, Guy’s and St Thomas’ is at the forefront of healthcare innovation and excellence. We are a diverse and inclusive organisation, boasting a dedicated workforce of 23,700 people who are committed to the wellbeing of our patients and each other.
As a major employer and a hub for leading-edge research and innovation, we are dedicated to enhancing the health and wellbeing of the communities we serve.
Our hospitals and community services
We’re proud that our 5 world-famous London hospitals each have a rich legacy of high-quality care, groundbreaking research, and clinical brilliance. They include:
- Guy's Hospital
- St Thomas' Hospital
- Evelina London Children's Hospital
- Royal Brompton Hospital
- Harefield Hospital
- Community services
Our integrated teams and services work seamlessly across all our hospitals and community locations to ensure the best possible care for our patients. All our adult and children’s hospitals are ranked in the world’s best by Newsweek in its 2025 list of ‘World’s Best Specialized Hospitals’.
Facts and figures
- Patient contacts: 3.05 million
- Day cases: 106,000
- Inpatients: 88,000
- Outpatients: 1.95 million
- Community contacts: 692,000
- Emergency department attendances (A&E): 212,000
- Staff: 23,700
- Annual turnover: £3.2 billion
Annual figures based on 2024/25
Research and innovation
As a leading centre of clinical research, with a history of innovation and medical firsts, we provide the latest and most advanced treatments. Together with our partners in King's Health Partners, we form one of the UK's 8 Academic Health Science Centres.
Through leading-edge technology and innovation, we're improving diagnosis, treatment and care to make healthcare smarter.
Our renowned experts and world class collaborations, particularly with King’s College London and Imperial College London, enable us to deliver research with local, regional, national and global impact.
Read more about our clinical research and development
Teaching and training
We open doors to meaningful careers and training, helping people from all backgrounds build fulfilling careers in health and care.
Our world-famous teaching hospitals train the doctors, nurses and health professionals of the future. GKT School of Medical Education, our medical school, and the Dental faculty are run jointly with King's College London and King's College Hospital. The Florence Nightingale Faculty of Nursing, Midwifery & Palliative Care is run jointly with King’s College London.
At any time, we can have over 500 doctors in training, 1,000 nursing and midwifery students in clinical placements and, over the course of the year, support 1,100 allied health professional students.
Our people
We are one of the largest employers in London, particularly south of the river. Our exceptional team of supportive colleagues, proudly represent London's vibrant and diverse communities.
Our internal structure
For administrative and management purposes, we deliver our services in 4 clinical groups.
Each of our clinical groups has the staff (and budget) of a major hospital trust and each work across multiple sites.
This clinical group includes:
- acute and general medicine, emergency care
- clinical imaging and medical physics
- dental services
- integrated local services
- medical specialities
- specialist ambulatory services
- pharmacy and medicines optimisation
Meet the team
Chief executive: Louise Dark
Medical director: Mark Kinirons
Director of nursing: Dawn Taylor
This clinical group includes:
- oncology
- surgical oncology
- haematology, cellular pathology and supporting services
- gastrointestinal medicine and surgery
- transplant, renal and urology
- theatre, anaesthesia and perioperative
- surgery
- therapies and rehabilitation
Meet the team
Chief executive: Sarah Clarke
Medical director: Anne Rigg
Director of nursing: Dawn Harper
This clinical group includes:
- children's community services
- children's medicine and neonatology
- children's surgical services
- women's services, including maternity
- children's cardio-respiratory and intensive care
Meet the team
Chief executive: Ms Gubby Ayida
Medical director: Dr Sara Hanna
Director of nursing: Janet Powell
This clinical group includes:
- cardio-respiratory critical care
- cardiovascular services
- pulmonary, adult critical care and sleep
Meet the team
Chief executive: Richard Grocott-Mason
Medical director: Mark O'Neill
Director of nursing: Jo Carter
Our organisation chart
Find out more about how our senior management team is structured.