Executive Team

Starting as a research and development scientist when he joined Particle Measuring Systems in 1995, Mr. Mitchell discovered that he enjoyed working with customers to solve their problems. As a result, he became more involved in the commercial aspects of the business. After holding positions at the company in various other capacities, Mr. Mitchell was appointed president of Particle Measuring Systems. He has written and presented more than 25 technical papers around the world and is the inventor or co-inventor on 10 patents. Outside of work, Mr. Mitchell enjoys spending time with his family and golfing.

Mr. Schindler is an analytical manufacturing leader focused on customer orientation and continuous improvement processes. He has worked for Particle Measuring Systems since 2006 and has nearly 17 years of experience in service operations from his previous leadership position as vice president of service center operations for Micro Motion, Inc. He has done graduate studies in Business from the University of Colorado and has a B.S. in Mechanical Engineering from Northern Arizona University. Outside of work, Mr. Schindler enjoys spending time with his family and training and hunting with bird dogs.

Mr. Knollenberg provides performance-leading solutions to the microelectronics, display and industrial sectors. In his more than 15 years at Particle Measuring Systems, Mr. Knollenberg has held a variety of technology and leadership roles in product development, global applications and general management. In addition to his experience at Particle Measuring Systems, Mr. Knollenberg has held marketing and business leadership positions in the thin film vacuum process equipment industry. Mr. Knollenberg is actively involved in several nonprofit organizations. Prior to his professional career, he served with the United States Army. When not at work, he spends time in the mountains hiking, fishing and spending time with family.

At Particle Measuring Systems, Mr. Scialò appreciates a working environment built on fairness and trust. Before joining Particle Measuring Systems, he held positions as CEO at Biotrace MicroSafe, managing director at Biotrace International in the pharmaceutical division and founder and CEO of MicroSafe. With a degree in Biology, Mr. Scialò’s post-graduate training includes business administration, marketing management and resources management. Outside of work, Mr. Scialò enjoys spending time with his family, particularly his grandson, and cooking.

Mr. Gromala has worked in a variety of roles during his more than 14 years with Particle Measuring Systems, including western sales manager, applications engineering manager and director of service. In his current position, he enjoys corporate strategy development and implementation with a focus on technology and intellectual property creation. Mr. Gromala’s career spans more than 25 years in the field of lasers and electro-optic technology, and he holds degrees in Engineering and Business. Outside of work, Mr. Gromala enjoys spending time with his family, exercising, playing the guitar and reading history books.

Bill Su joined PMS in June 2018; for several years he held senior level positions in China such as General Manager, Director at APAC and is currently VP of Sales & Marketing. Bill's main responsibility is to manage and develop Sales & Marketing for the organization. Prior to working at PMS, Bill was a Sales Director at ABB and General Manager at Honeywell in China. Bill completed a bachelor degree of industry automation and MBA from Hong Kong University. In his spare time, Bill enjoys reading and playing tennis.

Mr. Kibe joined Particle Measuring Systems in April 2017 and is responsible for the company’s Legal function, while also serving as the Global Ethics Officer. Mr. Kibe has a Bachelor of Science degree in Environmental Engineering from the United States Military Academy and has his Juris Doctor from the University of Colorado School of Law. Mr. Kibe served in the United States Army and worked in sales prior to law school. He has practiced law for the last 15 years with 3 years being spent at a law firm in Denver and the 11 years prior to joining Particle Measuring Systems supporting two Fortune 250 companies as in-house counsel. When not at work, he enjoys spending time with his family, coaching youth sports and enjoying the outdoors.

Prior to working at Particle Measuring Systems, Mr. Kim was a general manager for Avantor Performance Materials for Korea and Japan. His experience is extensive covering over 25 years in previous semiconducor and tecnology-driven industry management roles. At PMS, Mr. Kim enjoys building a team dynamic that contributes to the healthy growth of PMS Korea. Outside of PMS, he enjoys spending time with family and friends, golfing and reading.

Mr. Cowan joined Particle Measuring systems in January 2016 and is responsible for the company’s Finance and IT functions as well as a dual role leading Business Development

Mr. Cowan has a degree in Business & Commerce from Glasgow Caledonian University (Scotland) and is a member of the Association of Chartered Global Management Accountants. He has held various financial leadership roles throughout the past 15 years within various technology companies mainly in the Electronic Test and Measurement field. Most recently Mr. Cowan held the position of Senior Finance Director at Viavi Solutions.

When not at work he enjoys spending time with his family and both watching and participating in Soccer and Tennis.