President & CEO, One Source Group
Copper and Brass Sales, Engineered Plastics, Online Metals
Mr. Diephuis began his career in 1985 with Copper and Brass Sales, gaining experience as he was promoted through a series of positions in sales, purchasing and operations. Later, Mr. Diephuis assumed leadership positions involving distribution, processing, fabricating, logistics, marketing and procurement over a 23-year span.
In 2008, Mr. Diephuis was promoted to the position of President of thyssenkrupp Industrial Services NA. In February 2018, the company changed their name to thyssenkrupp Supply Chain Services to better reflect the full line of services available to the market. Mr. Diephuis and his team continue their commitment to growing the presence across North America.
In 2021, Mr. Diephuis returned to his roots, accepting the role of President and CEO of the One Source Group, including Copper and Brass Sales, thyssenkrupp Engineered Plastics and Online Metals. Mr. Diephuis and the One Source Group leadership team are focused on their Mission of being the First Choice for materials and services in the market.