Private and venture-backed companies
Numerically the largest pool of pre-commercial life sciences companies in the country, and the one nobody can hand you as a list. There is no register of private biotech, so this group gets assembled from financing announcements, trial registries and hiring signals, one company at a time. Stated plainly: that difficulty is the reason the segment stays underworked by everyone.
Who signs: the chief executive, the chief medical officer, the head of corporate development, the board member who ran a launch before.