Machine Sales

Glebar’s Sales Team is ready to assist and answer any questions you may have regarding your precision grinding needs. With over 65 years of collective industry-specific experience, our team members are experts in component analysis and finding the right solution. 


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Mark Bannayan
Vice President, Sales & Marketing
(201) 644-2020

Mark Bannayan is our Vice President of Sales and Marketing and holds a BS degree in Economics from Northeastern University.  In his 20 years at Glebar, he has helped with production management and been a vital part of the Sales team, marketing our trade shows worldwide and leading our international sales.  Mark implemented ISO-9001 and got Glebar certified in 3 months.  Before Glebar, Mark was a part of the United Nation Development Program in the Middle East and was an Account Analyst for Boston Financial Data Services.  He is a musician, enjoys trekking, and speaks 5 languages.  Email Mark at


Sean Riess
Machine and Technical Sales Manager

Sean Riess is our Machine & Technical Sales Manager and holds a Bachelor of Arts degree from Ramapo College. During his 22-year career at Glebar, he has worked in Service, Research and Development, and sales. Sean was instrumental in developing grinding processes for many new opportunities and will continue to develop product improvements with our customers. In his free time, Sean enjoys playing and collecting guitars.  Email Sean at


Kathleen Haddad
Sales Support Specialist

Kathleen Haddad is our Sales Support Specialist and has been with Glebar since 2015. She holds a Bachelor of Science degree from Montclair State University. During her time with Glebar, Kathleen has worn many hats working across the Accounting, Sales, and Marketing departments, supporting the CEO, VP of Sales and Marketing and CFO. She also manages all of the tradeshows and events for the company. When she is not at work, she enjoys cooking and spending time with her friends and family. Email Kathleen at