Executive Management

Jeffrey A. Graves , Chief Executive Officer and President, 3D Systems


Dr. Jeffrey Graves is President and CEO of 3D Systems and joined the company in May 2020. 

Prior to joining 3D Systems, from 2012 to May 2020, he served as CEO, President and Director of MTS Systems Corporation, a global supplier of test, simulation, and measurement systems. From 2005 until 2012, he served as President and CEO of C&D Technologies, Inc. He also held leadership roles with Kemet Corporation as Chief Operating Officer (2001-2003) and CEO (2003 to 2005). Previously he held a number of leadership and technical roles with GE, Rockwell Automation and Howmet Corporation.

Jeff currently serves on the Board of Directors of Hexcel Corporation.

He holds a bachelor’s degree in metallurgical engineering from Purdue University. He also holds a master’s degree and PhD in metallurgical engineering from the University of Wisconsin. He has been recognized with the distinguished alumni award from both universities. He is also a master black belt in six sigma. 

Menno Ellis, Executive Vice President, Healthcare Solutions


Menno Ellis leads our Healthcare Solutions business unit. He is responsible for all facets of the business including sales, product management, advanced applications development, research and development, and end-to-end operations for Healthcare Solutions.

He joined 3D Systems in December 2016 as Senior Vice President Strategy and Vertical Markets. He served as Senior Vice President and General Manager of the Plastics Business Unit, and is now responsible for the Healthcare Solutions group, which encompasses Dental, Medical and Simulations businesses.

Prior to joining the company, he spent 20 years in management and business consulting services with an emphasis on sustainable, long-term revenue growth.

Menno holds undergraduate and graduate business degrees from the Wharton School of the University of Pennsylvania, and the Ross School of the University of Michigan.

He is multi-lingual and fluent in English, Spanish, Dutch and Papiamento.

Charles W. Hull, Co-Founder, Executive Vice President, Chief Technology Officer for Regenerative Medicine


Charles (Chuck) Hull is the Co-Founder and Chief Technology Officer of 3D Systems. Chuck is the inventor of the solid imaging process known as Stereolithography, the first commercial 3D printing technology.

With the founding of 3D Systems in 1986, he initiated the 3D printing industry and continues to lead it today with cutting edge innovations ranging from state-of-the-art production 3D printers that have changed the game in manufacturing to precision healthcare and medical 3D printing solutions, on-demand parts manufacturing services and digital design tools.

He is a named inventor on 85 United States patents, plus numerous other patents around the world in the fields of ion optics and 3D printing.

In 2014, Chuck was inducted into the National Inventors Hall of Fame at the United States Patent and Trademark Office for his globally impactful and transformative work inventing and pioneering 3D printing. The same year, Chuck was the recipient of the European Patent Office’s prestigious European Inventor Award in the non-European countries category for his contributions to technological progress and the advancement of society. In 2016 he received the Manufacturing Leadership Lifetime Achievement Award from Frost & Sullivan’s Manufacturing Leadership Council, and The American Society of Mechanical Engineers, ASME, honored Chuck and named the SLA-1, the first commercial 3D printer, a Historic Mechanical Engineering Landmark. He also received The Economist’s prestigious 2013 Innovation Award, recognizing significant contributions across the fields of science and technology.

Prior to founding 3D Systems, Chuck served six years as vice president of engineering at UVP, Inc. Before that, he spent 10 years as an engineering manager at DuPont.

Chuck holds a bachelor’s degree in engineering physics from the University of Colorado. He received an honorary Doctorate in Engineering from Loughborough University in the U.K. and an honorary Doctorate in Science from the University of Colorado.

Andrew M. Johnson, Executive Vice President, Chief Legal Officer and Secretary


Andrew Johnson is responsible for all legal matters across the globe, including corporate, securities, contracts, litigation, labor and employment, and trade compliance. Andrew joined 3D Systems in July 2006 and has been influential in the company’s legal strategy and has helped to navigate complex litigation and regulatory matters. He has previously served as Interim President and CEO from October 2015 to April 2016.

Prior to joining the company, he was an Associate with Hunton & Williams LLP on the asset securitization team.

Andrew has a bachelor’s in political science, diplomacy, foreign affairs and religion from Miami University. He also has a master’s of business from the University of Michigan and a juris doctor from the University of Virginia.

Andrew also serves on the board of directors for Reverb, a global nonprofit that unites musicians and fans to take environmental and social action.

David Leigh, Executive Vice President, Chief Technology Officer for Additive Manufacturing


David has more than 30 years of experience in the additive manufacturing industry. Prior to his role with 3D Systems, David served as the Chief Technology Officer (global) and Chief Operations Officer (North America) for EOS. He also founded Harvest Technologies which was a pioneer in end-use parts applications in aerospace and established one of the first AS9100 certified additive manufacturing facilities. Harvest was acquired by Stratasys in 2014, and David transitioned to the innovation and technical teams, serving as the Senior Vice President of Emerging Technologies.

David holds a PhD in Materials Science and Engineering, a Master of Science in Engineering, and a Bachelor of Science in Mechanical Engineering, all from the University of Texas at Austin, a pioneering research university in additive manufacturing.

Phyllis Nordstrom, Executive Vice President, Chief People & Culture Officer, and Chief Compliance Officer


Phyllis Nordstrom serves as an Executive Vice President, the Chief People & Culture Officer, and the Chief Ethics & Compliance Officer. Phyllis is responsible for driving our global human resources strategy, growing and developing enterprise talent, cultivating employee engagement and communications, and overseeing business ethics and compliance programs.

Phyllis has an outstanding track record of leadership in key culture, compliance, and risk management roles. Prior to joining 3D Systems, Phyllis was Senior Vice President and Chief Risk & Compliance Officer at MTS Systems Corporation where she was the leader of corporate sustainability, business ethics, internal audit, and corporate compliance. Phyllis also held multiple leadership roles at PricewaterhouseCoopers, Target, and US Bank.

She holds a Bachelor of Science degree in Accounting from Louisiana State University and is a Certified Internal Auditor.

Wayne Pensky, Interim Chief Financial Officer


Wayne Pensky is the Interim Chief Financial Officer of 3D Systems and joined the company in May 2022. 

Wayne has previously served as Chief Financial Officer for Hexcel Corporation for 10 years, after holding other financial positions including head of finance for one of the Business Units and Chief Accounting Officer. Prior to Hexcel, Wayne was a Partner at Arthur Andersen & Co.

He holds an MBA and BA from University of California, Berkeley.

Reji Puthenveetil, Executive Vice President, Industrial Solutions


Reji Puthenveetil is the Executive Vice President of Industrial Solutions. He is responsible for sales, marketing, product management, advanced applications development, research and development and end-to-end operations for Industrial Solutions. The Industrial Solutions Group includes segments such as Aerospace, Transportation, Energy, High Tech, Jewelry, Consumer and Prototyping.

Prior to his role with 3D Systems, Reji spent more than 25 years as a management consultant helping companies across multiple industries design a clear strategy for growth and ensuring organizational capability and alignment for execution.

Reji received a bachelor’s degree in communications from Wingate College and a master’s degree in business administration from Wake Forest University.