Castor for

Get your product to market faster

Your data is secure & your study compliant

Becoming compliant with applicable regulations for your trials has never been easier! Castor complies with international laws and regulations such as HIPAA, 21 CFR Part 11, GDPR, GCP, and EU Annex 11. We are ISO 9001 and ISO 27001 certified.

Adhere to local data security regulations by protecting your data on the server of your choice – located in the Netherlands (EU), United Kingdom, and the United States.

Our security statement

Made for your business

Explore our features

Decrease your time to market

Build your study within days, or have us build it for you, and be ready to start collecting data within weeks!

Advanced monitoring

Monitor your study by raising manual or automatic queries and verifying the source data.

Cost effective

Minimize your costs while maximizing the quality of your research, with Castor's transparent & competitive pricing.

Keep track of your studies

View concise summaries for record progress and study statistics through clear dashboards.

Full control over your study

You no longer have to rely on third parties to manage your study. With our flexible user rights management module, you can customize access for different users and user roles.

The investigator can easily see an overview of the study progress for his or her patients. Give your sponsor study overview and provide overview of all the queries, query statuses, and verifications to your monitor.

Trial management features

Integrate with your existing tools

Our API allows for seamless integration of Castor with external applications, such as medical devices. Extract data from external systems and applications and automatically import the data into Castor, reducing time wasted on duplicate data entry.

API documentation

World class support

With our world-class support, your study will always be on track. Our customer success team answers your questions within the hour. Our support teams consists of highly knowledgeable technical, medical, and research graduates.

Study building can be a time-consuming task. Save valuable time by having us build your study for you! As researchers, we have experience in building studies, and understand how to best set up your study within Castor. For customers who want extra support, we offer three packages: Two personal consultations, Pre-live check, and Phone support and priority email support. Contact us for a quote or for more information.

What our users say about Castor EDC.

Pieternel Pasker-de-Jong

Science Officer and Senior Epidemiologist at Meander MC

User friendliness, affordable pricing and the flexibility of the Castor team made us choose Castor.

Geke Blok

Head of Medical Education and Science

Castor supplies us with a secure, high-quality data management program that supports our research ambitions very well.

Diana Grootendorst

Science Coordinator and Senior Clinical Epidemiologist at the Haaglanden MC, Den Haag

The Castor Team has a strong experience with both research and data management, which is very valuable to us.

Ariaan Siezen

Project Leader Digital Research , Data Stewardship, Radboudumc

One of the many advantages of Castor is that they, as a company, are very innovative. Innovation is in their DNA, and this is a very good match with the dynamic world of medical research where we continually think of new functionalities and how to upgrade our surrounding ICT landscape. Castor EDC is a really good partner to develop with.

Dr. Nienke Legdeur

MD and Ph. D. Candidate at VU Medical Center

Within 1 week, our students were comfortable using Castor and able to capture data!

Sean Ianchulev


I didn’t watch the video tutorials, I jumped right in, explored Castor EDC, and was able to find my way around quickly.

Jan de Waele

MD, PhD, Associate Professor at the University of Ghent

I find Castor EDC very easy to use! After watching the workshops I was able to easily create our eCRF in no time.

Jennifer Breel

MPA Pain Medicine - Anesthesiology at the AMC

Castor meets all our requirements: GCP compliant, user-friendly, time-saver, audit trail.

PD Dr. med. Marco Düring

Principal Investigator, Institute for Stroke and Dementia Research, LMU Munich

Castor strikes the right balance: Comprehensive features and easy to use at an affordable price.

Remco den Ouden

Radboudumc Information Management

Researchers are very satisfied with Castor EDC; based on their study protocol they can easily build their study structure, and change it when necessary. It is very nice to see how creative they can become: one particular researcher was so creative that he incorporated a large part of the protocol in the study structure.Researchers can do fantastic things with Castor EDC!

Brechtje Hesseling

Researcher at Reinier de Graaf Hospital

What I like about Castor is that I can create a user-friendly database that will also create a user-friendly output, i.e. that I can already prepare the data as much as possible to make data analysis easier.

Paul Teunissen

Research Fellow, Department of Cardiology at VU University Medical Center Amsterdam

Building the case report form was quick and easy with the FormBuilder.  We highly recommend Castor!

Bee Barbini

Research Assistant, HIV & Sexual Health at King’s College Hospital

I’m not a PC whizz, but with your guidance I was able to quickly and easily build my CRF.

Schedule a demo

Are you interested in our EDC? Learn more by scheduling a demo with us and learn why Castor is right for your business. If you prefer exploring Castor yourself first, start for free right now.

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