We revolutionise ECG recordings

We deliver easily accessible, smart devices for healthcare. Operating at the exciting edge between technology and healthcare, we strive to help healthcare professionals and patients. Discover our journey!

It is our vision to deliver open and easily accessible devices integrating with both stand alone and cloud based 3rd party analysis software. We want to improve patient diagnosis and outcomes by optimizing clinical routines and workflow in the healthcare sector, yielding faster patient effectiveness. 

It is our mission to build safe and effective medical devices and services. Cortrium provides healthcare professionals with the tools they need to conduct safe, fast and efficient diagnoses, follow-up assessments, and monitoring relevant in a plethora of diseases. To improve quality of clinical treatment by developing, testing and commercializing: Increase patient safety, Secure quality of clinical result, reduce patient hospitalization and rehabilitation time.

Our Story

Cortrium is a Danish med-tech company which was founded in November 2014 by Jacob Eric Nielsen and Erik S. Poulsen. The two founders managed to gather a team of engineers and the company was selected for the Bayer accelerator program. This was the beginning of our medically certified Ambulatory ECG Monitor – the C3 Holter Monitor.

In 2017 Cortrium signed a partnership contract with Pfizer Pharma GmbH about scaling the opportunities for ECG monitoring in Germany. In early 2018, the company obtained the EC certificate (CE-mark) and the ISO 13485 certification as a manufacturer of ECG devices. Today Cortrium is working in close collaboration with Pfizer in the German market.

Our aspiration for continuous improvement has lead to feedback and learnings from the user experience which we considered in further developing the device. Thus, in September 2019 we were able to release our newest product the upgraded C3⁺ Holter Monitor – which we launched at the ESC (European Society of Cardiology) World Congress of Cardiology in Paris. The C3⁺ has flexible arms and live-monitoring of your patient’s ECG using iOS devices.

Cortrium is offering the easy and smart ECG monitoring solution to other markets mainly via country-based distributors of medical equipment.

We at Cortrium are convinced that the C3⁺ Holter Monitor will significantly advance the digitalization of healthcare and simplify everyday practices. With our profound medical expertise and in-depth technical knowledge, we can develop products that fit today’s healthcare market and will shape the healthcare market of tomorrow – for the benefit of doctors and patients alike.

After an extensive time of product development and certification, we are now present in multiple EMEA markets. We have big ambitions and we are just getting started.


We are a growing an international team of innovators, digital transformers and coffee drinkers.

Karsten Madsen (CEO)

Karsten Madsen got appointed as CEO at Cortrium in August 2018. He has a lot of experience and is knowledgeable in advising, directing and assisting with the strategic implementation of decisions and operations. Before Karsten Madsen joined Cortrium he held the position of Business Development Manager at InQvation a co-working space and IoT-start-up hub for original entrepreneurs just outside Copenhagen. Earlier he held positions like Country Manager at Fujitsu Siemens and Business Unit Manager at GlobalConnect.

Dr. Erik Poulsen (Co-Founder & CSO)

Erik Poulsen (Medical Doctor and MSc. in Biomedical Engineering) is recognized by HP and WIRED who referred to him as the Healthcare Reinventor 2017. He is an alumnus at the Singularity University and Harvard Business School and an invited lecturer at the Wharton School of Business.

Claus Bildsøe Astrup (CCO) 

Claus Bildsøe Astrup joined Cortrium in October 2019 as Chief Commercial Officer. He has extensive experience within the Medical Device industry and has held positions as Country Manager in Denmark, China and Spain for Coloplast. Furthermore, he has been CEO for several companies within different industries. Claus holds a MSc in Strategic Business and Marketing.

Jacob E. Nielsen (Co-Founder & CPO)

Jacob E. Nielsen is responsible for Production and Regulatory Compliance (QA). Before joining Cortrium Jacob worked as Project Manager for public-private partnership projects funded by the EU. Jacob holds a MSc in Political Science and Cinematography.

Andreas Stochholm (CTO)

Andreas Stochholm is responsible for Research & Development (R&D). Before being appointed CTO Andreas contributed to regulatory affairs and as a Clinical Data Analyst at Cortrium. He oversees the entire development process of new products and software at Cortrium, from the initial planning, through to implementation and production. Andreas hold a MSc in Biomedical Engineering.

Contact Us

Join us!

We are growing fast and extending our team. Please review our current openings in the career section of our website.

Open positions

We are reviewing unsolicited applications on an ongoing basis. Please send your application to openposition@cortrium.com


Enjoy a catered breakfast, lunch and fresh fruits. Every day.

Flexible hours

Morning person or night owl? We got you!

Public transport

Easy, barrier-free access and treehugger friendly workplace.

Free coffee & tea

Get your caffeine fix for free.


If you are a journalist and would like to get in touch with us, please contact Marianne, who will help you get in touch with the right person for your approach.

Marianne Nissen

Public Relations

Marianne.Nissen@cortrium.com(+45) 51 97 77 50

Where are we?

Our headquarter is located close to Copenhagen, Denmark.

Want to say Hello?


Tel: +45 40 57 47 71

Erik Husfeldts Vej 7, 2630 Taastrup