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Executive Team

Meet Our Leaders

Here you can meet the people whose knowledge & experience come together to make a difference.

Kyle coffinger

Kyle Coffinger

Chief Executive Officer

Kyle has over 15 years of experience selling quality-related services in the automotive, medical device, and military industries. He has helped develop and implement quality programs for over 20 different OEM plant locations. Kyle has outstanding experience and understanding in dealing with both domestic and transplant OEM requirements. Kyle is a Michigan State University graduate with a degree in Marketing.

Tammy mcewen

Tammy McEwen

Chief Operating Officer

Tammy has over 18 years of experience in managing operations and developing businesses within the inspection, training, and consulting industry. She has worked with numerous OEM and Tier suppliers across Canada and the US to develop and implement solutions to improve quality and efficiency. She brings a wealth of experience with a focus on continually and consistently improving processes. Tammy is based out of the Greater Toronto area. She received her degree in Behavioral Science from Loyalist College in Belleville, ON. She is currently pursuing a Business Management degree from Athabasca University.

Susumu ishii

Susumu Ishii

Executive Vice President & Chief Administrative Officer

Ishii has nearly 20 years of experience working with Sojitz Corporation, Stratosphere Quality’s parent company, and brings significant value to the services and offerings of Stratosphere Quality. Having spent time engaging in automotive parts logistics, supply chain, and automotive module assembly, Ishii looks forward to continuing to bring his experience and knowledge to the company.

Tadahiro miki

Tadahiro Miki

Executive Vice President, Global Business Development

Mr. Miki has over 25 years of sales and marketing experience in the banking and quality assurance service sector. In accordance with the business strategies and growth initiatives, Mr. Miki is in charge of Global Business Development and acts as a liaison with Green Tec to ensure an effective business alliance between Stratosphere Quality and Green Tec in order to expand its customer base in the US.

Charlie ungetheim

Charlie Ungetheim

Vice President, Operations

Charlie has 28 years of experience in the areas of manufacturing, plant management, quality assurance, and continuous improvement. Charlie has worked with several OEMs over the past 14 years in the areas of sorting, rework, containment, and engineering services across the United States to develop and implement solutions to improve quality. Charlie received a degree in Digital Electronics from Indiana Vocational Technical College in Evansville, Indiana.

Jeremy burke

Jeremy Burke

Vice President, Operations

Jeremy has over 20 years of experience in the automotive industry, with the last 15 of those years in quality inspection and containment services. He has a background in plant management, quality engineering, and production management. Over the years, he has developed extensive knowledge of major OEM supplier quality containment systems and managed operations of up to 1500 team members across the US and Mexico. Jeremy is a Michigan State University graduate with a degree in Biology.

Sergio cerenzia

Sergio Cerenzia

Vice President, Operations

Sergio has over 25 years of automotive experience spanning product design, equipment design, process development, supplier development, quality engineering, and containment, working with numerous OEMs and Tier 1 suppliers in Canada, the U.S., and Mexico. He has extensive experience in problem-solving, launch, and program management, and can utilize his diversified background to help customers meet their goals. Sergio obtained his Bachelor of Applied Science degree in Engineering from the University of Waterloo and is a registered Professional Engineer.

Pattie kuhn

Pattie Kuhn

Vice President, Human Resources

Pattie has more than 20 years of experience providing leadership and strategic direction while implementing human resource programs and initiatives. She was responsible for high-impact accomplishments in recruiting, benefit design, policy/procedure writing, and employee development. She has championed intra-department collaboration for change in both non-union service and union/manufacturing environments. Pattie received her Bachelor’s degree from Butler University and a Master’s degree in Human Resource Management from Keller Graduate School of Business.