Phase III Clinical Trials CROs in United Kingdom

UK-headquartered global mid-size CRO (now part of LabCorp/Covance) with deep expertise in oncology, rare diseases, and paediatric clinical trials across 30+ countries.

Mid-size global CRO acquired by Labcorp providing clinical development services from Phase I through Phase IV with operations across Europe, Asia, and the Americas.

Glasgow-founded, India-expanded full-service CRO providing clinical trial management, site management, and regulatory services across Asia-Pacific, Europe, and North America.

Global full-service CRO specializing in oncology, rare disease, and complex clinical trials across all development phases, with 2,900+ clinical research professionals operating in 100+ countries.

Next-generation decentralized CRO from London using a proprietary clinical trial platform to deliver faster, more efficient trials in cardiovascular, oncology, and ophthalmology.

One of Europe's largest full-service CROs with a dedicated network of research sites across the UK, conducting global clinical studies from Phase I through Phase IV with particular strength in patient recruitment.

UK-based Phase I-IV site network and CRO operating multiple dedicated clinical research centres across Northern England for healthy volunteer and patient population studies.

Full-service boutique CRO with a purpose-built MHRA-accredited Phase I unit in South Wales. Specializes in early-phase clinical pharmacology, oncology, rare diseases, and respiratory conditions through to Phase III.

UK-based specialist CRO for ophthalmic and contact lens clinical trials, providing study design, clinical monitoring, and regulatory support for eye care medical devices and pharmaceutical products.