Leadership Team

Bill Presley is President and Chief Executive Officer of Gentherm, the global market leader and developer of innovative thermal management and pneumatic comfort technologies. Bill joined Gentherm in January 2025 and serves on the Company’s Board of Directors.

As President and CEO, Bill leads more than 14,000 employees in 13 countries, where he is responsible for the strategic direction and operational leadership of the company. He is leading the company's quest to strengthen the core business and growth initiatives in adjacent markets centered on the company's core technology platforms of Thermal Management, Air Moving Devices, Pneumatic Solutions, and Valve Systems.

Bill joined Gentherm from Aptiv PLC, where he served as Vice Chairman, Chief Operating Officer and President for Aptiv’s Signal & Power Solutions Segment (S&PS). Under his leadership, he was responsible for $20 billion in revenue and oversaw more than 160,000 global employees in 40 countries across 140 facilities and 7 technical centers.

Prior to joining Aptiv in 2019, Bill held various positions of increasing responsibility at Lear Corporation including Global Vice President of the Wire & Component Business Unit and Global Vice President of Engineering from 2008-2019. Bill began his career at Chrysler Corporation where he worked in multiple functional areas including Systems & Component Engineering, Product Design Studios and Vehicle Development.

Bill graduated from Norwich Military University with a Bachelor of Science degree in Electrical Engineering and holds a Master of Engineering degree with a concentration in Electromagnetic Physics from the University of Detroit and an MBA with a concentration in Finance from Oakland University. Bill served in the U.S. Army and Michigan National Guard as a member of the Field Artillery between 1988 and 2001 in various leadership positions.

Jonathan “Jon” Douyard is Gentherm’s Executive Vice President, Chief Financial Officer and Treasurer reporting to Bill Presley.

Jon leads all of Gentherm’s financial and IT operations on a global basis.

Jon joined Gentherm from The Shyft Group, the North American leader in specialty vehicle manufacturing, assembly, and upfit for the commercial, retail, and service specialty vehicle markets, where he was CFO since March 2020. At Shyft, he played a key role in driving financial performance, generating cash flow, managing merger and acquisition activities, strengthening corporate controls and processes, and developing the finance organization.

Prior to Shyft, Jon spent four years as CFO for Fluke Corporation, a leading global industrial technology company within Danaher / Fortive, where he led the Finance and IT functions. Prior to Fluke, he spent 15 years in key financial leadership positions at United Technologies and General Electric. He joined Sikorsky Aircraft, a leader in the design, manufacture, and service of military and commercial helicopters, in 2012 where he served as the CFO, Commercial Systems and Services at United Technologies’ Sikorsky Aircraft division. Jon began his career with GE in 2001, where he served in multiple divisional CFO and financial planning roles and was also a graduate of the Financial Management Program and Corporate Audit Staff.

Jon holds a Bachelor of Science in Finance from Bentley University and has earned Six Sigma Black Belt and Green Belt certifications.

Steve Fletcher is Gentherm’s Senior Vice President and General Manager of its Medical business, reporting to Bill Presley.

Steve leads Gentherm’s global Medical business where he is responsible for profitable growth, developing and launching new products, and continuing to drive synergies with the Company’s Automotive product lines.

Previously, Steve was the Executive Vice President, Halo Diagnostics, at C2 Sense, a Massachusetts Institute of Technology spin-off. At C2 Sense he led the Company’s transition to Medical Diagnostics through the development and launch of a COVID-19 point-of-care home diagnostics solution. Prior to that, he held senior leadership roles as President and Chief Commercial Officer at Mologic Inc., President and Chief Operating Officer at GC America, and Vice President and General Manager, Water Analysis Instruments at Thermo Fisher Scientific. Steve began his career with 3M Corporation where he held positions of increasing responsibility.

Steve earned a Bachelor of Science degree in Urban and Economic Geography from the University of Victoria and a Post Graduate Diploma in Marketing Management from the British Columbia Institute of Technology. He also holds a Six Sigma green belt from 3M Corporation.

Wayne Kauffman is Gentherm’s Senior Vice President, General Counsel and Secretary reporting to Bill Presley.

Wayne oversees all legal matters for Gentherm including corporate governance, intellectual property, litigation, securities regulation, corporate compliance and data privacy.

Prior to this role, Wayne led Gentherm’s intellectual property policy and development. He began his legal career with the national IP law firm of Harness, Dickey & Pierce, P.L.C., where he was responsible for assisting clients in securing patent rights. Wayne began his career with General Motors, where he held various positions of increasing responsibility over his 17-year tenure in vehicle manufacturing, product development and vehicle safety and integration in both the U.S. and Canada.

Wayne holds a J.D. in Law from Wayne State University and a Bachelor of Science degree in mechanical engineering from Kettering University

Barb Runyon is Gentherm’s Senior Vice President and Chief Human Resources Officer, reporting to Bill Presley.

Barb leads the overall human resources strategy, including total rewards, talent acquisition and talent management, employee engagement and human resources. She is also responsible for leading global Marketing and Corporate Communications.

Prior to joining Gentherm, Barb worked as Vice President and Chief Human Resources Officer at La-Z-Boy Incorporated, a global leader in residential furniture, from 2015 through 2018. Prior to that, she held roles of increasing responsibility at PepsiCo/The Pepsi Bottling Group for over 14 years.

Barb graduated with a Master of Business Administration with an emphasis in Organizational Development from Wayne State University and a Bachelor of Science in Human Resources from Michigan State University.

Barb is the Vice Chair of the Board of Directors for Loyola High School in Detroit, the Vice President of the Advisory Board for the School of Human Resources and Labor Relations at Michigan State University, and serves on the Board of the Michigan Colleges Alliance.

Thomas Stocker is President, Gentherm Technologies, reporting to Bill Presley. Thomas is responsible for growth and profitability of Gentherm Technologies globally, managing customer relationships, product development, manufacturing, and delivery of quality products. Thomas previously served as Gentherm's Senior Vice President and General Manager, Europe, Middle East and Africa (EMEA).

Thomas is based at the Company’s Odelzhausen, Germany location and serves as Managing Director of Europe, Middle East and Africa (EMEA)

Previously, Thomas was the Chief Technology Officer and Head of Engineering at HENSOLDT GmbH, a global defense and security electronics company. Prior to HENSOLDT, he held several senior-level business unit leadership positions at Harman International over the course of nearly six years. Prior to this, Thomas held various roles of increasing responsibility at BMW where he led the execution of some of the most advanced technologies for the automaker.

Thomas holds a master’s degree in electronics from Ravensburg-Weingarten University of Applied Sciences.

Jaymi Wilson is Gentherm’s Senior Vice President and Chief Strategy Officer, reporting to Bill Presley.

In her role, Jaymi leads the development and advancement of Gentherm’s corporate strategy and enterprise-wide strategic initiatives, partnering across the organization to drive long-term growth and value creation. She also oversees the Company’s strategic marketing and corporate communications efforts globally. Since joining Gentherm in 2013, Jaymi has held roles of increasing responsibility, including Senior Vice President and General Manager, North America, Senior Vice President of Global Sales and Vice President and General Manager of Gentherm’s Medical Business.

Her career spans manufacturing, engineering, product management, sales leadership, strategy, and corporate development, with experience at Visteon, SMR Automotive Global, and Gentherm.

Jaymi earned a Bachelor of Science degree in mechanical engineering from the University of Michigan and a Master of Business Administration from Eastern Michigan University.