Element's world-leading industry specialists. Find an engaged expert today.
![Jonathon Harros](/-/media/images/experts/jon-harros-640x480.jpg)
Jonathon Harros
Jonathan has over 20 years’ experience in telecommunications testing, and is responsible for Element’s worldwide Zigbee services.
![Joshua Allen](/-/media/images/experts/josh-allen-640x480.jpeg)
Joshua Allen
Joshua Allen is a Radiographic Testing technician with over 12 years of experience in the energy, aerospace, and manufacturing sectors.
![Justin Riebesel, PE, CWI](/-/media/images/experts/justin-riebesel-640x480-may-2018.jpg)
Justin Riebesel, PE, CWI
Justin Riebesel is an expert metallurgist specializing in failure analysis, weld engineering, and new test method development.
![Kevin Dischler](/-/media/images/experts/kevin-dischler-640x480.png)
Kevin Dischler
Kevin Dischler is recognized as a leading expert in Aquatic Toxicity Testing throughout the Oil & Gas Industry and along the Gulf of Mexico.
![Keyur Somani](/-/media/images/experts/keyursomani.jpg)
Keyur Somani
Dr. Keyur Somani is a polymeric material expert specializing in the application of elastomers, thermoplastics and composites within the Oil and Gas sector.
![Khanh Ngo Courtney, Ph.D.](/-/media/images/experts/khanh-courtney-640x480.jpeg)
Khanh Ngo Courtney, Ph.D.
Dr. Courtney’s experience extends from R&D to analytical method development, validation, implementation, method transfer, and optimization of test methods for the cGMP setting per USP and ICH guidelines. She is the General Manager for Element Ann Arbor, an analytical lab in our Life Sciences business. She is a CMC professional in the Biological therapeutic space, and specializes in applying analytical strategies to meet regulatory intent.
![Kristin Treece](/-/media/kristin-treece-headshot-thumbnail.png)
Kristin Treece
Chemical
Kristin is a Senior Scientist at Element in our Bend, OR location. She has three years of experience in extractable and leachables testing and six years of experience and specializations in the structural elucidation of small molecule unknowns.
![Lee Mangham](/-/media/images/experts/lee-mangham-640-x-480.jpg)
Lee Mangham
Lee Mangham is the Technical Manager at the Element Sheffield laboratory, he is responsible for a wide variety of technical content and has over 30 years of experience in mechanical testing.
![Maciej Jakucki](/-/media/images/experts/jakucki-640x480.jpg)
Maciej Jakucki
Maciej Jakucki has performed and managed a wide variety of medical testing projects and programs to meet FDA and CE requirements.
![Marie Halliday](/-/media/images/experts/marie-halliday-640x480-px.jpg)
Marie Halliday
Marie Halliday is an internationally recognized expert in the coatings industry with a background in R&D, specification development & approval testing.
![Mark Elliott](/-/media/images/sectors/environmental/mark-elliott-element-640x480px.jpg)
Mark Elliott
With almost 30 years of experience, Mark is instantly recognizable in the emissions industry. He brings reliable, honest and insightful decision-making expertise to the table, and demands a culture of safety within the team.
![Mark Perkins](/-/media/images/sectors/environmental/profile-pages/mark-perkins-640x480.jpg)
Mark Perkins
Senior Application Chemist with over 22 years of experience in Analytical Chemistry, focusing on the development of SIFT-MS applications.