Meet the Team

Meet PASCO's International Sales Team

PASCO has fully trained selling partners all around the world who are ready to work with you on equipping your lab in the most cost-effective manner. If you'd like an introduction to the Science Education Partner in your country or have questions about implementing PASCO solutions please contact the Sales Director for your region.

John Wayne

Vice President International Sales

John Wayne

(916) 786-3800, ext. 8212

John joined PASCO in 1992 when the International Department was in its infancy. John has helped develop and expand PASCO’s Global Science Education Partner network throughout the world. He can often be found at European education exhibitions. John has an Engineering degree from the University of Illinois and worked as a Mechanical Engineer and Member of Technical Staff at FMC Corporation. John also worked at the General Motors Technical Center on Corvette materials engineering.

John enjoys skiing, golf, motorcycle riding and spending time with his family.

Laurie Chiumar

Asia Pacific

Laurie Chiumar

(916) 786-3800, ext. 8224

Laurie has been helping PASCO customers across the Asia Pacific region since 1996 where she has helped to integrate innovative technologies in science education in several large projects in Singapore and China. She earned her B.S. in Genetics degree from University of California Davis and utilizes her bilingual skills in the region. When she is not traveling she enjoys spending time with her family playing tennis, cooking and gardening. She is also an active member of her church where she teaches Sunday School to 5th grade girls.

Mark Kotlyar

Eastern Europe & Central Asia

Mark Kotlyar

(916) 786-3800, ext. 8265

Mark Kotlyar has been a PASCO Regional Sales director since 2012. Mark has extensive experience in developing new markets for some of the largest organizations in the world, such as Bose Corporation, Newell Rubbermaid / Mimio and now PASCO. He is responsible for managing more than 20 markets around the world, and is focused on proper product positioning in global markets, distributor and dealer development, and end user training.

Mark holds an Electrical Engineering degree and cares deeply about education and preparing children to the challenges of the 21 century.

Humberto Medina

Latin America & Canada

Humberto Medina

(916) 786-3800, ext. 8223

Humberto has been working with PASCO scientific for more than 7 years. He holds a degree in Electronic Engineering from the Autonomous University of Guadalajara and MBA with emphasis on international business from University of Missouri, Kansas City.

Humberto has more than 10 years of technical sales experience in international markets. He is passionate about technology and providing the best educational environment to inspire students. Previous to joining PASCO, he worked in the medical equipment and manufacturing industries. Humberto enjoys basketball and tennis and traveling with his family.

Tom Rush

Middle East & Africa

Tom Rush

(916) 786-3800, ext. 8214

Tom Rush is the sales director for Africa and the Middle East at PASCO. Before joining PASCO, Tom started his career as a research scientist with AT&T Bell Laboratories in NJ,he was charged in 1993 with opening the AT&T Government Communications office in South Africa. As the managing director for AT&T in South Africa, he was successful in selling AT&T’s products and services into the African government market. When AT&T formed Lucent Technologies in 2007, Tom’s responsibility included selling Lucent Technologies products in Africa as well as in the Middle East.

Tom holds a PhD in Physical Chemistry from Stevens Institute of Technology in Hoboken NJ, a Masters in Chemical Engineering from the University of Maryland College Park Md and a Masters in Chemistry from Howard University in Washington DC.

Tom enjoys golf, tennis and swimming.

Chris Wilhelm

Western Europe

Chris Wilhelm

(916) 786-3800, ext. 8259

Chris has been with PASCO for over 10 years working with both university and K-12 schools in the eastern part of the U.S.

He has a BS in Physics from Dickinson College in Pennsylvania known for developing data collection and lab apparatus for educational use in the physics classroom where he first experienced using PASCO products.

In fact, Chris’ physics program was one of the very first in the country to utilize sensors, interfaces and software for use in science education. So he got into probeware on the ground floor and has continued to amass experience that helps him create solutions for schools and districts.

He is an avid cyclist and enjoys spending time with his new baby daughter, Alexandria.

PASCO General Contact Information

Hours: (Pacific time zone)
Mon-Thurs: 7:00 a.m - 4:30 p.m.
Fri: 7:00 a.m - 2:00 p.m.

 (inside US)
916-462-8383 (outside US)


PASCO scientific
10101 Foothills Blvd.
Roseville, California
95747-7100 USA