Personalis Inc. is a healthcare diagnostics company focused on advanced cancer genomic testing and analytics. Personalis develops and markets precision oncology solutions that help physicians detect residual or recurrent cancer, monitor treatment response, and support therapy selection through high-resolution molecular profiling. The company also provides sequencing and data analysis services to pharmaceutical and biopharmaceutical customers for translational research, biomarker discovery, clinical trial support, and the development of personalized cancer therapies. Its product portfolio includes tumor-informed and whole-genome-based testing services, as well as research solutions for population sequencing and other genomic applications. Personalis serves clinical, research, and industry customers across the United States, Europe, and the Asia-Pacific region, with its operations centered in Fremont, California.