Working together. Saving lives.

Mother-daughter time made possible by the gift of an organ transplant.

Brother-sister time made possible by the gift of life.

Day on the lake made possible by the gift of an organ transplant.

Partnership made possible by the gift of an organ transplant.

Organ donation advocates made possible by the gift of life.

This game made possible by a lifesaving organ transplant.

Working together. Saving lives.

Our mission is to advance organ availability and transplantation to support patients through education, technology and policy development.

How organ matching works

Understand the basic path to donation

When a patient is “added to the list,” a transplant hospital adds a patient’s medical information into UNOS’ computer system. When a deceased organ donor is identified, UNOS’ computer system generates a ranked list of transplant candidates, or “matches”, based on blood type, tissue type, medical urgency, waiting time, expected benefit, geography and other medical criteria.

Learn more about how organ matching works


  • You can be a donor at any age.
  • Celebrity or financial status are not factors in getting a transplant.
  • Donation is possible with many medical conditions.
  • All major religions approve of organ and tissue donation.
  • A national computer system and strict standards are in place to ensure ethical and fair distribution of organs.
  • A healthy person can become a living donor by donating a kidney, or a part of the liver, lung, intestine, blood or bone marrow.
  • Learn more organ donation facts.
UNOS Business Services

Expertise you can trust

With years of experience developing custom solutions to support transplantation and immunosuppression therapy research for the transplant community, United Network for Organ Sharing created UNOS Business Services to expand our clinical and technology service offering.

Learn more


UNOS announces efforts to increase the number of transplants

At the White House Organ Summit this morning, United Network for Organ Sharing CEO Brian Shepard and Chief Medical Officer David Klassen, M.D. will announce new technology and data tools to increase the number of transplants done in the United States.

UNOS Researchers Present Studies at American Transplant Congress

UNOS staff members authored and will present numerous studies at the American Transplant Congress (ATC), held June 11-15 at the John B. Hynes Convention Center. UNOS staff members are primary authors of a total of 19 abstracts and are coauthors of an additional three abstracts.

Upcoming events

Mon 25

COIIN Advisory Council Face to Face Meeting

July 25 @ 8:00 am - 4:00 pm
Thu 28
Fri 29
Aug 01

OPTN/UNOS Pancreas Committee Teleconference

August 1 @ 3:00 pm - 4:00 pm
Aug 09

OPTN/UNOS Histocompatibility Committee Meeting

August 9 @ 12:00 pm - 1:00 pm
Aug 11

OPTN/UNOS Policy Oversight Committee Meeting

August 11 @ 12:00 pm - 1:00 pm
Aug 12

Executive Committee Conference Call

August 12 @ 8:00 am - 5:00 pm