About Cryos

The Cryos Symposium

As one of the key players in the field of ART, we feel that it is our responsibility to support innovation and scientific development. One of the ways in which we can support this is through the Cryos Symposiums. The Cryos Symposiums provide a platform for presenting the latest scientific research through educational lectures, given by a variety of international experts within ethics, legislation, donor children’s wellbeing, donor sperm and -eggs as well as genetical topics.

Furthermore, it presents an opportunity for knowledge sharing, the discussion of important topics as well as a source of inspiration. The Symposiums hereby support our goals of cooperation among clinicians and experts fostering an international network and supporting research within the field of ART and in particular 3rd party reproductive treatment by the use of donor gametes.

Cryos has its as our ambition to actively work to:

  1. help improve people’s access to ART worldwide

  2. establish clear legal framework governing parental rights as well as

  3. increase the awareness among the youth of the importance of having children at an earlier age.

The first ever Cryos Symposium was held in 2017 in connection with our 30-year anniversary, and it was a big success. In light of the first ever Cryos Symposium, we decided to repeat the success and make the Cryos Symposium a recurring event both in Denmark and in 2020 also with the launch of our first Cryos USA Symposium.

Our ambition is that The Cryos Symposiums will be a permanent and must-visit event for many years to come.

Kind regards,

Peter Reeslev


About Cryos 




Cryos' goals

A dream come true 

It all started in Aarhus, Denmark, in 1981, when Cryos’ founder Ole Schou had a strange dream about frozen sperm. Today, Cryos is a widely recognized international sperm and egg bank and has helped to make thousands of dreams come true.

Being an international company, Cryos supplies frozen donor sperm and eggs to more than 100 countries worldwide. We have the world’s largest selection of anonymous and non-anonymous donors and we are also proud to say that we boast the highest number of registered pregnancies in the world.

From the beginning, the company has specialised in the cryopreservation of sperm. In the last 10-15 years, the technology behind oocyte vitrification has evolved greatly. As it continued to improve, it was only natural for Cryos to expand into the donor egg market as well.

In 2015, Cryos established the first free standing fully independent frozen egg bank in the United States, and we are now proud to open our first egg bank in Europe. The vision is still the same; to help the childless make their dream come true.


Aside from advanced research and development, Cryos’ international success can be attributed to the people – the people who work at Cryos, the staff at our many cooperating clinics, our generous sperm and egg donors, and of course all the people who have put their trust in us and who are now the proud parents of happy, healthy children.

Ole Schou about how Cryos started


"I don’t know why I had this dream back in 1981. But for some strange reason, the moment I woke up I just knew I had to find out everything there was to know about frozen sperm. It became somewhat of an obsession and I basically read every book and paper ever written about the subject. Little did I know, that all of a sudden, I had actually become one of the leading experts in the subject without even being a scholar of natural science. 


Fortunately, I was able to combine my knowledge about frozen sperm with a Graduate Diploma in Business & Administration, and gradually establish a successful commercial business. Utilising my knowledge about the process of freezing and storing human sperm, I started collaborating with doctors and clinics who were very satisfied with my work and my product. Business took off, and at first my office and laboratory were established as a service merely for frozen sperm storage. In 1990 the donor programme was established, and international demand increased rapidly. 


Later on, we started specialising in the egg vitrification technology as well. This means that we are able to help even more people around the world becoming parents."

Watch this video of Ole Schou telling the story of Cryos.