Mesenchymal stem cells surpassed hematopoietic stem cells as the most frequently cited stem cell type in scientific publications in 2015. This is the first time mesenchymal stem cells have exceeded hematopoietic stem cells in scientific literature. Additionally, mesenchymal stem cells were the only stem cell type to see an increase in publications from 2014 to 2015, while the other four stem cell types analyzed decreased over this period. These findings indicate research companies should prioritize product development, marketing, and relationships for mesenchymal stem cells.