Castor operates within the healthcare sector and provides a clinical trial platform designed for the design, deployment, patient engagement, data collection, and analysis of clinical trials. The platform is adaptable and can meet the requirements of different stakeholders in the clinical research process. It primarily serves the healthcare sector. The company was founded in 2012 and is based in Amsterdam, Netherlands.

Reify Health specializes in optimizing clinical trial operations within the healthcare sector. The company offers cloud-based software solutions designed to accelerate patient enrollment in clinical trials, aiming to streamline the process of bringing new therapies to patients. Reify Health primarily serves the biopharmaceutical industry, research clinics, and healthcare organizations involved in clinical research. Reify Health was formerly known as ZeroSum Health. It was founded in 2012 and is based in Boston, Massachusetts.

Medable is a company that offers a cloud-based platform for decentralized clinical trial technology in the healthcare and clinical research sectors. The platform facilitates electronic Clinical Outcome Assessments (eCOA), remote monitoring, and the integration of connected healthcare sensors for clinical trials. Medable was formerly known as Dermatrap. It was founded in 2012 and is based in Palo Alto, California.

ObvioHealth provides digital health solutions within the clinical trial industry. The company has a platform and mobile application allows for remote monitoring and participation in clinical trials, focusing on data collection and participant engagement. ObvioHealth's services are relevant to the healthcare sector, especially in trial management. It was founded in 2017 and is based in New York, New York.

Bloqcube specializes in clinical trial management software within the life science industry. Its platform aggregates data in real-time and aims to assist small and midsize life-science companies. Bloqcube's services are directed towards the life science sector, focusing on clinical trials. It was founded in 2017 and is based in Piscataway, New Jersey.

Lindus Health conducts end-to-end clinical trials for the life sciences sector, using a technology-driven approach to streamline the process. The company provides services including study design, patient recruitment, clinical data capture, monitoring, and project management, facilitated by a proprietary software platform and access to electronic health records. It serves the biotechnology and pharmaceutical industries. The company was founded in 2021 and is based in London, United Kingdom.