QSI is a biotech company making next-gen protein sequencers. They already have the Platinum Pro in labs, and their Proteus platform is coming in 2026, which should be much faster and more powerful. People on Reddit are excited because it could change proteomics, make money from kits, and even be in some DoD labs (though no official contracts yet). Don’t be fooled by the name, QSI isn’t a quantum or defense tech company.