Raths, Raths, & Johnson, Inc. is one of the most respected firms in the country solving and preventing building catastrophes. We are building experts & industry leaders Who we serve We work with owners, architects, contractors, and engineers seeking thorough solutions to the most complex building performance challenges in the country. Why we are different We know how critical it is to have an expert at your fingertips when everything is on the line. That’s why we put our firm leaders at the helm of every project. How we help As leading experts in building enclosures, structural engineering, and field/lab testing, we solve your building design problems so you can get clear on how to move forward.