Emerson Promotes Leadership within Professional Tools Business for Pipe and Electrical Solutions Group

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Justin King Named Vice President of Engineering; Rob Trefz, Vice President Marketing

Emerson announces two promotions within its Professional Tools business: Justin King has been named Vice President of Engineering and Rob Trefz, Vice President of Marketing. The moves mark the company’s continuing commitment to creating synergies between the RIDGID and Greenlee brands that professionals know and trust.

Justin King Named Vice President of Engineering


Both King and Trefz bring extensive leadership skills and experience working for Emerson brands to their new roles. In their positions, King will lead the development and evolution of the entire Professional Tools line of Pipe and Electrical products, including RIDGID and Greenlee. Trefz will oversee all product management, product marketing and marketing strategy; assuring the products meet the needs of tradespeople worldwide and that the benefits are effectively communicated.

“Both Justin and Rob have demonstrated their ability to lead and innovate within the Emerson brands for a number of years. These promotions will strengthen the collaborative culture we’ve built within the Professional Tools organization, assuring we continue to develop innovative solutions that help professional tradespeople do their jobs safely and more efficiently. We look forward to the ideas Justin and Rob will bring to their roles,” said Paul McAndrew, Vice President – General Manager of Pipe and Electrical Solutions.

Rob Trefz, Vice President Marketing


King has worked with Greenlee since 2007, joining the company as Country Manager for China; he then held various roles in strategy and business development, product management, and engineering. Following Emerson’s acquisition of Greenlee in 2018, King became Director of Engineering and Innovation for Greenlee within the Professional Tools business.

He has a Master of Business Administration degree from London Business School in the UK and a Master of Science in Mechanical Engineering degree from the University of Michigan, Ann Arbor. King also holds a Bachelor of Science degree in Mechanical Engineering from Brown University.

Trefz has worked with Emerson since 2004, joining the company as a Global Commodity Manager. He held procurement roles for Emerson and their motor division before moving into various marketing and business development roles at RIDGID. He most recently held the position of Vice President of Marketing for Greenlee.

Trefz is a licensed Professional Engineer, has a Bachelor of Science degree in Mechanical Engineering and a Master of Business Administration degree from Case Western Reserve University in Cleveland, Ohio.