Nautilus Biotechnology vs Karius
Side-by-side comparison of AI visibility scores, market position, and capabilities
Nautilus Biotechnology is building a single-molecule proteomics platform to map and quantify the full human proteome at a scale and sensitivity previously impossible.
About
Nautilus Biotechnology is a proteomics company founded in 2016 and publicly listed on Nasdaq, developing a revolutionary platform for analyzing proteins at single-molecule resolution. While genomics has transformed medicine through DNA and RNA sequencing, the proteome is the actual functional layer of biology where drug targets, disease biomarkers, and therapeutic mechanisms operate. Nautilus is building a platform that can identify and quantify thousands of proteins simultaneously from tiny biological samples using a fluorescence-based single-molecule detection approach without requiring mass spectrometry. The platform promises to enable proteomics studies at a scale and depth comparable to what next-generation sequencing delivered to genomics, unlocking new insights into disease biology and drug development. Nautilus is in the instrument development phase and targets pharmaceutical research, clinical diagnostics, and academic biology. The company has raised over $250M and is building manufacturing capabilities for a planned commercial instrument launch that could define a new era in proteomics research.
Karius raised $409M total including a $100M Series C in May 2024; its genomic blood test detects 1,000+ pathogens at 400+ U.S. hospitals; launched Karius Focus BAL for pneumonia in April 2025.
About
Karius is a Redwood City, CA-based life sciences company founded in 2014 that developed the Karius Test — a single blood draw that uses next-generation sequencing and AI to detect over 1,000 pathogens (bacteria, fungi, viruses, parasites) in seriously ill patients. The test is used when conventional cultures and targeted diagnostics fail, providing clinicians at transplant centers, children''s hospitals, and ICUs with a comprehensive pathogen report within 24 hours.
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