Emerson Promotes Leadership within Pipe and Electrical Solutions Group

EIN King Trefz emerson 400

Dec 16, 2019

Emerson has promoted Justin King to Vice President of Engineering and Rob Trefz, Vice President of Marketing for their professional tools business. The promotions will aid the company in creating synergies between their RIDGID and Greenlee brands. Emerson’s professional tools business also includes the Klauke brand.

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.

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.

Photo: Justin King (Left) and Rob Trefz (Right)

Related Articles


Latest Articles

  • Lever Connectors and Twist-Ons: How to Decide Which is Right for the Job

    Lever Connectors and Twist-Ons: How to Decide Which is Right for the Job

    There are many different types of wire connectors, and sometimes it can be hard for electricians to determine which one is best to use. Read More…

  • Winnipeg Information Bulletin: Low-Risk Voice, Data, Video & Security System Installations

    Winnipeg Information Bulletin: Low-Risk Voice, Data, Video & Security System Installations

    September 17, 2026 Certain types of installations may qualify for a low-risk voice, data, video (VDV) and security system electrical permit. For information related to regular VDV/security system installations, see winnipeg.ca/vdvsystems. Applications must be submitted through Permits Online. Electrical permits and inspections are needed for certain installations of security and similar alarm systems. This makes… Read More…

  • What Type of Outdoor Light Do I Need for My Application?

    What Type of Outdoor Light Do I Need for My Application?

    September 17, 2026 By Stanpro The right outdoor light starts with the space you need to illuminate and how that space is used. For commercial projects, parking lots and large exterior areas point toward area lights; entrances and building perimeters toward wall-mounted or security lighting; signs, facades and targeted areas toward flood lights; pathways toward… Read More…

  • Alberta Employers and Tradespeople Share their Perspectives

    Alberta Employers and Tradespeople Share their Perspectives

    September 16, 2026 In Alberta’s skilled trades labour market employers and tradespeople are facing growing pressure from tariffs, rising costs, hiring challenges and labour mobility barriers. CAF-FCA’s new report, Hiring, Mobility and Needed Supports: Alberta Employers and Tradespeople Share Their Perspectives, takes a closer look at what’s happening on the ground. Based on surveys of… Read More…


Changing Scene

  • MacKinnon Magnetics Partners with Adanac Sales in BC and Yukon

    MacKinnon Magnetics Partners with Adanac Sales in BC and Yukon

    October 5, 2026 MacKinnon Magnetics is excited to welcome Adanac Sales LLP as their new sales agency partner representing British Columbia and Yukon! The Adanac team brings industry expertise, strong local relationships, and a commitment to supporting customers – qualities that make Mackinnon Magnetics excited about what they can build together. “This partnership marks another… Read More…

  • Government of Canada Introduces Legislation to Transform how Canada Builds

    Government of Canada Introduces Legislation to Transform how Canada Builds

    October 2, 2026 The world is changing rapidly. In response, Canada is focused on what we can control: building a stronger, more independent, and more sustainable economy. We are leveraging our strengths and moving with speed to open new markets, strengthen supply chains, accelerate projects, and unlock our natural resources. As we build, we are… Read More…

  • Ontario Awards Construction Contract for New Little Current Swing Bridge

    Ontario Awards Construction Contract for New Little Current Swing Bridge

    October 2, 2026 The Ontario government has named a construction manager for the Little Current Swing Bridge replacement project. The new bridge will replace the existing bridge on Highway 6 connecting Manitoulin Island to the mainland, providing reliable, year-round access to the provincial highway network and making it easier for workers and families to connect… Read More…

  • Construction Starting on new Pitt Meadows Secondary School in BC

    Construction Starting on new Pitt Meadows Secondary School in BC

    October 2, 2026 Construction is beginning on the new Pitt Meadows Secondary school, which will provide students with a safer and more modern environment to learn. “Pitt Meadows is a vibrant community with a bright future and I’m proud that the local high school will soon better reflect the community it serves,” said Lisa Beare,… Read More…