Persephone Biosciences vs Tempus
Side-by-side comparison of AI visibility scores, market position, and capabilities
Persephone Biosciences uses gut microbiome profiling and synthetic biology to develop cancer immunotherapy response predictors and novel therapeutics; founded 2017 in San Diego; received BARDA funding for microbiome-based diagnostics;
About
Persephone Biosciences is a biotechnology company founded in 2017 by Stephanie Culler and Chris Calvert and based in San Diego, California. The company focuses on decoding the human gut microbiome to develop diagnostics and therapeutics in oncology and neonatal health. Its core thesis is that the composition of a patient's microbiome significantly affects how they respond to cancer immunotherapies such as checkpoint inhibitors — a hypothesis supported by a growing body of peer-reviewed clinical research. Persephone's diagnostic platform aims to predict immunotherapy response from a patient's microbiome signature prior to treatment initiation.
Publicly traded AI precision medicine company (Nasdaq: TEM); $1.27B revenue in 2025 (+83% YoY); $14B+ market cap; genomic profiling, algorithmic diagnostics, and clinical trial matching across oncology, neurology, and cardiology.
About
Tempus AI is a technology company applying artificial intelligence to advance precision medicine across oncology, neurology, psychiatry, and cardiology. Founded in 2015 by Eric Lefkofsky (co-founder of Groupon) and headquartered in Chicago, Illinois, Tempus built the world's largest library of clinical and molecular data and applies AI to help physicians make more personalized, data-driven treatment decisions. The company's core offerings include genomic profiling (sequencing tumor DNA to identify mutations and actionable targets), algorithmic diagnostic tests (AI-driven companion diagnostics for cancer treatment selection), clinical trial matching (connecting eligible patients to appropriate studies), and data licensing to pharmaceutical and biotech partners for drug discovery and clinical development.
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