meet the team

Get to Know the Leadership Team Behind ThermoFab, a Producto Group Company

mark rauenzahn

Chief Executive Officer
Board Member

Mr. Mark Rauenzahn is the Chief Executive Officer of Producto. Prior to this role he was the General Manager of Sundyne, LLC a highly engineered pump and compressor manufacturer. Under Mr. Rauenzahn’ s leadership Sundyne grew revenue, EBITDA, and diversified the sales into the energy markets.

Before Sundyne, Mr. Rauenzahn worked for Integer Holdings Corporation under various roles from Director of Procurement to Director of Operations overseeing various sites in Malaysia and Ireland. He oversaw product development and manufacturing at the Galway facility and helped them grow revenue substantially at this time. Additionally, he focused on continuous improvement driving operational efficiencies at the site.

Before Integer Holdings Mr. Rauenzahn spent time at United Technologies with roles of increasing responsibility. He started in the United Technologies Operations Leadership Program and held roles as Operations Manager and Commodity Manager. He spent a significant amount of time in Poland and India helping to set up and start operations in those countries.

Mr. Rauenzahn holds a BS degree in Industrial Engineering from Virginia Tech and an MBA from IE Business School located in Madrid Spain.

In his free time, he enjoys playing soccer, rock climbing, hiking and spending time with family.


General Manager

Mike’s performance under pressure as a General Manager at ThermoFab has been instrumental in making the company the industry leader it is today. Under his leadership, ThermoFab has maintained its on-time shipping rate of 95% for many years by delivering quality products on time.

Always being intrigued by the way things are built and function Mike has spent his entire career in manufacturing. Early on as a draftsman engineering and designing environmental components used on oil tankers and then in the plastics field designing and building jigs and fixtures to help streamline the manufacturing process. He started with ThermoFab almost 35 years ago by bringing CNC Machining to an industry not yet realizing the benefits of its use. Currently he functions as Director of Operations and is responsible for all aspects of our manufacturing process.

During his tenure with ThermoFab, Mike has been awarded for outstanding achievement and length of service and served as a member of American Society of Mechanical Engineers (ASME). When Mike’s not hard at work, you will most likely find him on the golf course!


The Producto Group
Business Development – Plastic Enclosures

Michael’s even-keeled leadership has helped transform ThermoFab into the medical and life science enclosure industry leader it is today. With more than 40 years as an owner and principal, Michael has seen ThermoFab through the refinement of manufacturing highly critical plastic enclosures.

With a strong industrial manufacturing and medical product design background, he has been instrumental in bringing new laser, diagnostic and operating room products to new and evolving medical markets. Michael has led several IDSA seminars and has been published in Product Design and Development and Advanced Materials & Processes magazine.