Engineering,
architecture, &
forensic experts

Raths, Raths, & Johnson, Inc. is one of the most respected firms in the country solving and preventing building catastrophes.

Who we are

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’re 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.

Client Focused

Top-level leadership on your project

We are the only national specialists in building enclosures, engineering, and field and lab testing that have principals leading every project.

Meet our team

Market knowledge

Actively involved in your industry

Immediate Past President

Principal Patrick Reicher, SE, REWC, CCS, CCCA

President - Chicago Chapter

Principal, George Mulholland, SE, PE

Treasurer / Executive Committee

Associate Principal, Lurita McIntosh Black, NCARB, REBC, APT RP

1966 Since our founding in 1966, we’ve been leading with excellence in forensic engineering.
Our story

A foundation in forensic engineering

In 1966, Charles Raths founded this firm with a commitment to engineering fundamentals, attention to detail and dedication to client service. He and his partners, Donald Raths and Robert Johnson, positioned the firm as one of the early forensic engineering practices in the country.

Today, the firm is in its third generation of leadership under Kurt Hoigard and Kenneth Lies. It continues the legacy of its founders with a focus on forensic expertise, innovative solutions, technical clarity, proven results, and client focus.

Giving Back

Supporting future leaders

Sarah Parham is the 2020 Winner of The Garth D. Hall Memorial Scholarship in Architectural Technology

RRJ established the Garth D. Hall Memorial Scholarship in Architectural Technology at the University of Illinois at Urbana-Champaign, School of Architecture to honor the legacy of Garth Hall, an RR&J Principal who passed away in 2014.

In Memory of Garth Hall

Learn More