Total No. of donors and cords in our database: 40,402,246

Search & Match

Use the Search & Match Service to find the most suitable stem cell source for your patient.

Search & Match Service

Worldwide organisations

Find here the organisations that facilitate donations or store cord blood units for patients.

Worldwide Organisations

World Marrow Donor Day

Participate in the annual worldwide event to celebrate donors who stepped up to save someone's life.

World Marrow Donor Day

WMDA Share

Go to the WMDA member website to collaborate with and learn from others.

WMDA Share

WMDA is a community of professionals. The work of WMDA covers four areas.

Optimising ‘Search, Match & Connect’

WMDA provides a global environment that facilitates access to the most suitable stem cell source.

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Supporting Global Development

WMDA support members to develop and grow, so the that more transplant patients find the most suitable stem cell source.

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Promoting Donor Care

WMDA ensures that the rights and safety of stem cell donors are promoted and protected.

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Ensuring Quality

WMDA promotes product quality and global collaboration through accreditation and standardisation.

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Open letter from the World Marrow Donor Association (WMDA) to condemn the war in Ukraine and to ensure that health services can continue to provide care to all patients in need of a transplant.



Our community believes in collaboration, integration and democracy. Through acts of aggression by Russian military forces, we see these values being threatened and eroded. WMDA calls on all stakeholders to strongly condemn the violence, bombing, killings, and disruption to essential services resulting from this conflict.

WMDA asks that all parties respect international humanitarian law by ensuring swift and safe delivery of cellular products to all patients who need a transplant and to ensure access to care and medicinal products for patients needing complex transplant treatments, such as those with blood cancer.

We stand for our colleagues, friends, families, donors and patients impacted by this tragedy and we continue to support our members during this difficult time.