HSL Laboratories

Health Services Laboratories (HSL) is a clinically-led provider of pathology and diagnostic services

HSL has a network of clinical laboratories across the country 

Its flagship laboratory, the Halo, marks a significant step forward in the way pathology is conducted in the UK. Situated opposite the renowned Crick Institute, next to the Wellcome Trust and adjacent to some of the finest hospitals and medical schools in Europe, it will be transformational in the delivery of a new kind of healthcare.


Currently in development, it is spread over 11 floors with five split-level basements, the facility will be home to more than 1,000 staff working within a connected suite of laboratories spanning more than 100,000 square feet. The Halo will also have dedicated clinical and non-clinical cores for vertical connectivity. The pioneering work conducted at Halo will be seamlessly linked to our group national network of hub and spoke laboratories throughout the UK.

As a clinically-led provider of world-class pathology and diagnostic services to the NHS, HSL is committed to ensuring that patients, doctors, specialists and research scientists have access to the latest technology available. And within Halo, we have the best that science can offer, providing excellent service levels, the very best laboratory facilities for extensive research and harnessing the skills of some of the brightest minds in medicine. All working to ensure that pathology is at the heart of health, revolutionising the way we deliver an even better and more personalised standard of care.

Watch the Kiestra installation at the Halo

Mortimer Market

Mortimer Market rapid response laboratory (RRL) has been developed to provide the urgent parasitology diagnostic work in association with the travel clinic and the Hospital for Tropical Diseases. The RRL sits alongside the actual clinics so that we ensure the best service possible with the fastest diagnostic results to patients who present at the clinic, to enable the clinicians to treat the patients during their appointment or shortly after.

60 Whitfield Street

60 Whitfield Street is being developed to create UCLH’s RRL, which will serve all of the hospital’s urgent work, including A&E, ITU and in-patient work. We are in the planning stages for this transformation. In addition to housing the UCLH RRL, we will also be creating the largest Cellular Pathology department in the UK, where we will have medical staff working alongside laboratory staff in one of the most advanced departments utilising the latest Histology and Cytology equipment available. This is due to go live towards the end of 2017 once the current services have transferred to the Halo building and the refurbishment is complete.

Royal Free London and North Middlesex University NHS Trust


HSL has developed two RRLs at the Royal Free London and North Middlesex University NHS Trust, which launched in summer 2016. Both sites have had new laboratory equipment that has been standardised to align them with the network of laboratories with the Group. This provides many benefits ensuring they feel part of a larger community of scientists and experts that can discuss aspects of the services with individuals who operate similar systems. This also enables a full off-site business continuity solution with connectivity back to the Hospital result reporting systems. The services that are operated from the RRL include haematology, biochemistry, routine coagulation and blood transfusion.

Barnet and Chase Farm Hospitals

The pathology laboratories at Barnet and Chase Farm Hospitals joined HSL in October 2017. We are currently working with the teams and Trust to scope out the future service configuration to support both Barnet Hospital and the new hospital development on the Chase Farm site.

HSL is a progressive partnership between The Doctors Laboratory, Royal Free London NHS Foundation Trust (the Royal Free London) and University College London Hospitals NHS Foundation Trust (UCLH)

Health Services Laboratories
Health Services Laboratories
Health Services Laboratories