Hologic Inc
A medical device company that focuses on women's health, Hologic makes the mammography and imaging tools used by hospitals and imaging centers worldwide — including 3D breast-cancer screening and cervical DNA tests. Founded in 1985, it grew through acquisitions like Cytyc and Gen-Probe to round out its lineup of surgical and diagnostic devices. Its name blends "holo" (whole) and "logic," and the celebrated 3D mammogram actually began as an after-hours side project, with the first prototype dubbed "Genesis."