In 1992 Lorenza Lazzari founded the Milano Cord Blood Bank, one of the largest public cord blood banks in Europe. At present, she is the R&D director of the Cell Factory, a unit dedicated to basic research and to GMP cell therapy protocols in the field of stem cells. She coordinates and supervises all the experimental work, supervises the writing, editing and publication of scientific papers and is responsible for intra- and extra-departmental scientific activities at the Cell Factory. She is a member of the Scientific Board of Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milano and therefore she contributes driving the research of one of the largest and oldest Institute in Italy. She is a reviewer for several international scientific journals and she is principal investigator in a number of national and international research programs and consortiums related to basic and clinical research on stem cells.
In 2009 she founded the scientific society ''FIRST'', a Forum of Italian Researchers on mesenchymal and stromal stem cells with the aim to favour the generation and dissemination of novel knowledge on mesenchymal stem cell biology for effective and safe cell therapy approaches and to promote research and clinical applications of mesenchymal stromal/stem cells favouring the collaboration between Italian and foreigners researchers involving national and international research Institutions and researchers. In addition, she has been often invited by private and public associations, charities and European governments in order to spread her knowledge about stem cells giving her the possibility to disseminate the interesting results obtained in this field. Her main field includes hematopoietic and non-hematopoietic stem cells from cord blood, umbilical cord, adult human bone marrow, adipose tissue, peripheral blood, teeth, amniotic fluid and villi for research and clinical applications.