MLAB

Mesa Laboratories, Inc.

A maker of quality-control tools for hospitals, labs, and pharmaceutical companies, Mesa Laboratories builds biological indicators—like its EZTest and Smart-Read lines—that verify sterilization equipment actually kills germs. Founded in Lakewood, Colorado in 1982, it grew from a small instrumentation and calibration shop into a global player through steady acquisitions, including Agena Bioscience and GKE. The name nods to the flat-topped hills common across its home state, a fitting touch for a company rooted in the American West.