Haag, a Salas O’Brien Company, is a multi-faceted forensic engineering and consulting company. Haag provides professional services to the legal industry, the insurance industry, corporations, manufacturers, government entities, and individuals. Since 1924, our growth has resulted directly from our long-standing commitment to quality while expanding our technical knowledge and services. Haag has built a reputation for excellence through the efforts of past and present personnel, and we are proud to continue that tradition today.
Haag is an employee-owned company committed to a culture of quality and integrity that has helped us thrive for almost 100 years. We take pride in adhering to our mission, vision, and values.
We deliver independent, industry-leading consulting services with integrity and time-tested expertise.
Setting the industry standard for failure and damage consulting services.
Integrity, Quality, Service, and Employee Growth, Recognition, & Ownership
Forensic engineering was still an emerging discipline in 1924 when veteran civil engineer Walter G. Haag founded his consulting company in Dallas, Texas, to appraise or value properties for a sale of the business. As his reputation grew, so did the forensic engineering field, and Mr. Haag began valuing properties after losses. By the time Mr. Haag retired from the company shortly before his death in 1956, forensic engineering was a full-fledged profession and Haag Engineering was ready to expand from North Texas to the world.
The man who set that expansion in motion was Charles W. Parish. A chemical engineer who came of age serving with the Army Air Force in the Pacific in World War II, Parish had come to work for Walter Haag in 1946. Taking over for his mentor 10 years later, he soon opened the company’s first satellite office, in Houston, just in time for Hurricane Carla.
In 1982, John Stewart, P.E., took over as president and has been a Haag engineer for 50 years (and still going). Justin Kestner, P.E., became Haag’s president in 2014. Haag has steadily grown its national presence, expanding from just our original location in Dallas to dozens of locations nationwide today.
For more than 100 years, Haag’s purpose has been to find and communicate the facts. We are known for scientific rigor, precision, and clarity. Haag’s engineering and consulting professionals have become a vital resource for clients in the legal, insurance, EAC, manufacturing, and other sectors.
In June 2024, Haag partnered with Salas O’Brien, becoming Haag, a Salas O’Brien Company. Salas O’Brien is an employee-owned engineering and technology firm at the forefront of sustainable design. We share core values and this partnership gives our clients access to additional in-house expertise and design services like sustainability/green energy, industrial process, pharmaceutical and healthcare, data centers, fire suppression, lighting and acoustic design, and more.
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