About Us

Principals & Credentials

Mark Koehler

Mark possesses a ASNT Level 3 certification in PT, MT, RT and a Digital RT Level 3 for a major Aerospace corporation.  Also, he possesses comprehensive UT, ET, Mechanical, Metrology and Metallurgical experience. He founded Professional NDE and Consulting, LLC in 2014, to provide Level 3 service to companies in the tri-state region. Using  highly professional and attentive customer service to differentiate PNDE from the balance of the market, the company has grown to more than two-and-one-half times its initial size in both personnel and revenue. As a parallel effort, he now is offering NDE field inspection services through Professional NDE Services Group, LLC, to all industries, including but not limited to, petrochemical, chemical, and energy.  Again, the emphasis is on responsive, reliable and professional customer service.

Mark began in the NDE industry in 1989. He has worked in a variety of ascending positions for companies providing NDE services. 

Glen Wood 

Glen is qualified to Level 2 certification in MT, PT and RT.  In addition, he has extensive training in EPRI visual inspection, high-energy radiography and ultrasonic shear wave testing. In his career Glen has held positions in field inspections, NDE management, sales, quality control and radiation safety. He has worked in venues throughout the United States for major NDE companies. His experience includes aerospace, shipbuilding, paper-mill systems, fabrications, industrial applications which involved valve rebuilds, machining accuracy and metal stress relieving.

Glen began his career in 1976, and has built a resumé that establishes him as one of the most knowledgeable NDE professionals in the industry today.