Our people are highly motivated and talented professionals who are committed to assisting our clients achieve great things. They possess a collective passion for problem solving, and a tenacity for delivering long-lasting business value to our clients. For this reason, we place tremendous emphasis on identifying and recruiting exceptional people, developing their skills, and establishing a professional environment that cultivates their leadership ability.

Richard J Karuhn - President

Richard J. Karuhn - President

Richard Karuhn is the President of Particle Technology Labs. He joined PTL in March 2012, and oversees the corporate direction, strategy and compliance for the Laboratory. He focuses on strategy and leadership, and on positioning the

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Lisa Jandacek - EVP, Director of Operations

Lisa Jandacek - Director of Operations

Lisa Jandacek is the Executive Vice President and Director of Operations at PTL. One of the original employees of PTL, Ms. Jandacek joined the company as an office manager and bookkeeper in 1993; she was named Managing Director in 2008 and Director

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Rebecca Lea Wolfrom - General Manager, PTL China

Rebecca Lea Wolfrom - General Manager, PTL China

Rebecca Lea Wolfrom is the General Manager of PTL China. Ms. Wolfrom joined PTL in 2008 as a Particle Characterization Chemist I and became Laboratory Manager in 2012 where she was responsible for overseeing the laboratory's production operations.

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Jorie Kassel - Laboratory Division Manager

Jorie Kassel - Laboratory Division Manager

Jorie Kassel is a Laboratory Division Manager at PTL.  Ms. Kassel joined PTL in 2007 as a Particle Characterization Chemist I and eventually progressed to the position of Particle Characterization Chemist IV, Team Leader. As one of PTL’s

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Ryan Keefer - Laboratory Division Manager

Ryan Keefer - Laboratory Division Manager

Ryan Keefer is a Laboratory Division Manager at PTL.  A member of the PTL team since 2012, Mr. Keefer started as a Particle Characterization Chemist I before advancing to Particle Characterization IV, Team Leader.  As one of PTL’s Laboratory

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Kelli Hubert - Customer Service Manager

Kelli Hubert - Customer Service Manager

Kelli Hubert is the Customer Service Manager of PTL. Ms. Hubert joined PTL in 1995 as a Particle Characterization Chemist Level I before advancing to the positions of Laboratory Manager and Quality Assurance Coordinator, amongst

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Richard F Karuhn - President Emeritus

Richard F Karuhn - President Emeritus

Richard F. Karuhn is the President Emeritus of Particle Technology Labs.  In this capacity, he provides leadership and guidance to PTL on matters of strategic technical importance. Richard founded Particle Technology Labs in 1992;

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