Evolutionary Tools, Inc. is a Seattle, Washington, company focused on patented ergonomic tools for tradespeople. The company was founded by Beau Sitzmann, a contractor/inventor, and its current product line centers on the BACK UP system, a torso-worn wearable support tool with interchangeable arms for work that requires leaning, kneeling, or standing over a task.
In 2026, the company sells through authorized dealers and lists dealer locations in North America and Europe. Its dealer network currently includes The Exoskeleton Store in Minnesota, Work Right NW in Oregon, IRUÑA TECNOLOGÍAS DE AUTOMATIZACIÓN in Spain, and Somanity in France.





