The History of Cadwell Industries, Inc.

Since 1979, Cadwell owners John Cadwell and Carl Cadwell

1979

John Cadwell, BSEE, MD, develops the world’s first microprocessor EMG in the basement of his Seattle home during his residency at the University of Washington School of Medicine. He partners with his brother, Carl Cadwell, DDS, to form Cadwell Laboratories. Their first product is the Cadwell 7000 EMG.

1980s

The Cadwell 5200A puts Cadwell on the map. This small, powerful, robust and easy to use machine becomes the best-selling EMG machine ever made. The company outgrows its previous facility and moves into 909 N. Kellogg St. in 1986.

Cadwell opens new building in current location in 1986

1990s

Responding to changes in industry trends, Cadwell replaces the 5200A with the Sierra line, which continues to serve the global EMG market today.

1993

Carl and John Cadwell win the U.S. Small Business Administration Small Business Person of the Year for Region X “for significant contributions as an outstanding small business person and for your dedicated support of small business.”

1994

Cadwell sends the Quantum 84 IONM/EMG machine into outer space. It’s the only machine that functioned on the mission. Scientists around the world study Cadwell data.

Certificate: Space

1999

Cadwell releases a dedicated surgical monitoring product. The Cascade provides the caliber of equipment that customers have been expecting, and Cascade IONM continues to dominate the U.S. market today.

2000s

Cadwell greatly improves the workflow efficiency of diagnostic test report generation with Sierra Wave’s introduction of Quick Report.

2015 Cadwell expanded with a two-story addition to accommodate software engineers, hardware engineers, IT, training facilities, a large kitchen and a gym

2010s

Cadwell expands its Kennewick headquarters and hires international support teams in China, Singapore, The Netherlands and UAE. Cadwell releases the Arc EEG line for clinical, ambulatory and long term EEG monitoring.

2015

John Cadwell and his wife Priscilla are nominated and win the Tri-Citian of the Year award for their dedication to community, local business and philanthropy.

2018

Cadwell releases the world’s first completely integrated electrodiagnostic system with ultrasound in its Sierra Summit.

John Cadwell and Priscilla Cadwell are awarded the Tri-Citian of the Year, the first time the award has been shared by a married couple

2019

Cadwell celebrates 40 years of delivering innovative neurodiagnostic, neuromonitoring, and sleep diagnostic solutions. Check out the party photos here.

2020

The next generation of ApneaTrak HSAT is launched with completely disposable patient kits to help sleep labs deliver safe home testing solutions. Cadwell continues to expand, serving new markets and improving its products. The company stays true to its mission: Helping you help others.