In 2019, ALSF established the Single-cell Pediatric Cancer Atlas (ScPCA) through awards for data generation and to create an atlas of single-cell gene expression profiles of pediatric cancers of different types and from different organ sites. The Childhood Cancer Data Lab, a program of ALSF, launched the ScPCA Portal in 2022 to make uniformly processed, summarized single-cell and single-nuclei RNA-seq data and de-identified metadata available for download.ALSF seeks to expand the projects available from the ScPCA Portal by accepting submissions from researchers with existing single-cell, single-nuclei, or spatial datasets. Submitted datasets will be made publicly available on the ScPCA Portal. Researchers that submit data may be eligible to receive small grants of unrestricted funds. Please see the guidelines for contributing to the portal to learn more.If you have a dataset you are interested in making available via the portal, we want to hear from you! To help determine whether the dataset meets the necessary requirements to be shared via the ScPCA Portal, please fill out this form with as much detail as possible. Contact scpca@ccdatalab.org with any questions.