Meet the PTL Team

Our people are highly motivated and talented professionals who are committed to assisting our clients in achieving 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 & CEO

Antonette R. Seneviratne-Anglewicz
Chief Operating Officer

William Kopesky
EVP, Director of Analytical Services

Jackie Balog
Particle Characterization Chemist III and Team Leader

Desmond Christie
Computer Systems Manager

Elizabeth Fitzgerald
Quality Assurance Assistant Manager

Amy Ganden
Quality Assurance and Methods Compliance Manager

Kelli Hubert
Internal Operations Manager

Jorie Kassel
Laboratory Division Manager

Ryan Keefer
Senior Technical Sales Specialist and Particle Characterization Chemist V

Cody Langellier
Laboratory Division Manager

Chorthip (Chip) Peeraphatdit
Particle Characterization Chemist IV and Team Leader

Janna Stahl
Business Development Manager

Jakub Strycharz
Particle Characterization Chemist IV and Team Leader

Rebecca Lea Wolfrom
Technical Compliance Manager