Mr. Richardson is the owner of Momentum Engineering, LLC. Momentum Engineering is involved in zip line design, inspection, zipline trolley safety, product development, and Emergency Arrest Devices (EAD) since 2002 .

His first company AA Machining and Welding, Inc. began in 1995. The company was involved in steel construction, certified welding, machine tooling, product development and building amusement rides. His business became a Nation Board Certified in welding and he gained a Steel Erection Contractors license. His biggest accomplishment came when his company was contacted by a Utah ski resort to design a passive braking zip line trolley and build the largest zip lines of the day in 2002. He later gained his first United States patent.

In 2009 he designed, build, trained personnel and operated a zip line in Spanish Fork, Utah https://www.heraldextra.com/news/local/south/elk-ridge/elk-ridge-resident-finds-peace-in-creating-new-things/article_10c0ba70-9a48-50fb-8b6b-87b56e5deae8.html.

He was first contacted in 2010  as an expert witness  candidate in a zip line accident in Reno, Nevada. 

He has three United States patents for the passive braking trolleys and zip line braking systems. The first in 2003 https://patents.google.com/patent/US6666773B1/en  The second United States patent issued in 2013 https://patents.google.com/patent/US8424460B2/en  and his third United States patent was granted in 2019. 

Mr. Richardson’s zip line trolleys and braking systems ride on some of the largest zip lines in the world.

Yes We Built the Park City Mountain Resort Zip Ride in 2003 Park City Mountain Resort sent their Employee Erik Cylvic to Cedar to work with the "Zip Doctor"