Liza Diers is a trained midwife and the founder, owner and managing director of Diers. She founded Diers Fertility Clinic in Aarhus in 2006 and has since worked with fertility treatment, sperm donation, egg donation and donor selection.
She also co-founded an international sperm bank and is the founder of Diers Selected.
In addition to more than 20 years of experience with fertility treatment, Liza has extensive professional expertise in sperm donation, egg donation and donor selection. Among other things, she co-founded an international sperm bank.
Liza takes part in the public debate on equal access to fertility treatment and the perspectives of donor-conceived people.
As the mother of three donor-conceived children, Liza combines her professional and leadership experience with personal insight into choosing a donor and building a family through donation.
Liza qualified as a midwife from the School of Midwifery in Aalborg in 2005.
The following year, she founded Diers Fertility Clinic in Aarhus. At the time, single women and lesbian couples did not have the same access to fertility treatment as they do today.
Liza therefore wanted to establish a clinic where the chance of getting help was not determined by family type or sexual orientation.
The wish to make fertility treatment accessible to more people is still a core part of Diers’ values.
Since Diers Fertility Clinic was founded, Liza has worked to develop and offer fertility treatment to single people and couples from Denmark and abroad.
Liza’s main professional areas are:
The specific medical, genetic, embryological and laboratory assessments and treatments are carried out by the clinic’s relevant specialists.
Liza is the founder and owner of Diers Fertility Clinic, which consists of two companies, Diers Klinik ApS and Diers IVF ApS.
Together, the two companies form the framework for Diers’ fertility treatments:
Liza’s role covers founding, ownership, strategic development and upholding the values that Diers is built on.
In 2017, Liza co-founded the sperm bank SellmerDiers. The sperm bank grew into an international company with branches in Aarhus, Aalborg and Copenhagen.
Her work with SellmerDiers gave Liza extensive experience in establishing and developing a sperm bank, including donor recruitment, donor selection, donor profiles and advising future parents on choosing a donor.
A key focus of the work at SellmerDiers was to limit, and be transparent about, how many families each donor could help create.
SellmerDiers became the first sperm bank in Denmark to introduce a global family limit for all donors – a single limit across countries. The aim was to limit the number of families with children from the same donor, and thereby also the number of genetic half-siblings. Openness about donors’ family limits remains an area Liza actively works for.
Another key focus was to give future parents access to more nuanced information about the donors’ personality, interests, background and values. This stemmed partly from Liza’s own experience of how difficult it could be to choose a donor based on very limited information.
In 2021, the international healthcare company Medicover acquired SellmerDiers from Liza and the other founder. SellmerDiers later changed its name to Born Donor Bank and is today an independent company outside Diers.
In 2025, Liza established the sperm bank Diers Selected, which is Diers Fertility Clinic’s own donor sperm service.
At Diers Selected, Liza draws on her background and knowledge from both the fertility and sperm bank fields, as well as her personal experience of choosing a donor.
Diers Selected recruits, selects and screens sperm donors. Thorough donor profiles are prepared and personal guidance is offered, so that future parents have access to relevant information about each donor and a better basis for making their choice.
Diers Selected emphasises openness about the number of families per donor. That is why each donor chooses their own global limit – and it can be no more than 50 families. By comparison, many larger European sperm banks have a global limit of 75 families per donor, if the limit is disclosed at all.
In 2026, Diers Fertility Clinic launched an egg donor database for those of the clinic’s patients who need an egg donor.
Here, patients get a unique insight into the egg donors through detailed profiles. At the same time, they have far more say and can take an active part in choosing their egg donor.
Read about donor sperm from Diers Selected Read about donor eggs from Diers Selected
Liza helped establish MyDonorFamily, which helps donor-conceived people and their families find and get in touch with genetic half-siblings.
The initiative grew partly out of experiences in Liza’s own family. Since 2025, MyDonorFamily has been part of Diers Klinik ApS.
The work with MyDonorFamily reflects a focus that extends beyond fertility treatment itself. It also covers the questions of identity, genetic relationships, privacy and belonging that can arise later in the lives of donor-conceived families.
For many years, Liza has taken part in the public debate on access to fertility treatment and the conditions that different patients and family types face.
Among other things, she has spoken about:
Liza’s public contributions draw on her background as a midwife, her experience as the founder of a clinic and a sperm bank, and her personal experience as the mother of three donor-conceived children.
Her work and story have been featured by The Times, TV 2, Politiken, Avisen Danmark and Japanese national television, among others.
In 2023, The Times Magazine visited Diers Fertility Clinic in Aarhus and interviewed Liza about international patients, IUI, single motherhood by choice, donor selection, sperm banks and family life in donor-conceived families, among other things.
Read the article in The Times Magazine
Liza took part in TV 2’s coverage of BMI limits and access to fertility treatment. She argued for patient involvement and an individual assessment rather than automatic rejection based on BMI alone.
Read the TV 2 coverage (in Danish)
Read a Diers patient’s story on TV 2 (in Danish)
In 2023, Liza and her family appeared in a news feature on Japanese national television about lesbian couples’ access to fertility treatment. The feature highlighted the differences between Denmark and Japan, focusing on equal treatment and the right to start a family.
See the feature on Nippon Television (in Japanese)
Read more about Liza’s appearance
Politiken has used Liza as a source on egg donation, egg donors’ motivation and the development in the number of donors.
Read the article in Politiken (in Danish)
In an in-depth profile, Liza spoke about her own experience of fertility discrimination, founding the clinic and her work to give more people access to fertility treatment.
Profession: Midwife and fertility entrepreneur
Education: School of Midwifery in Aalborg (Sundheds CVU Aalborg), 2005
Founded Diers Fertility Clinic: 2006
Current role: Founder, owner and managing director of Diers Klinik ApS, and founder and owner of Diers IVF ApS
Previous company: Co-founder and former co-owner of SellmerDiers, which later became Born Donor Bank
Main professional areas: IUI and fertility treatment, donor selection, sperm and egg donation, development of fertility clinics and sperm banks, and the perspectives of donor-conceived people and donor families
Public role: A professional and experience-based voice in the debate on access to fertility treatment, fertility discrimination, patient involvement and the perspectives of donor-conceived people
Personal experience: Mother of three donor-conceived children
Liza can be contacted through Diers Fertility Clinic regarding press enquiries, interviews, professional collaborations and questions about Diers’ history, values and development.
See also Liza Diers on LinkedIn.
'/%3E%3C/svg%3E){kind=small}
