Ed Koss – President and CEO
Michigan State University – Bachelor of Arts in Business
Mercer University – Master of Business Administration
30 Years of Operational and Corporate Management experience including Manufacturer Quality Systems and Finance. Working with industry and corporate organizations to align best practices within McMasters Koss to strengthen customer relationships and deliver more value to customers and partners.
Paul Pirtle – Vice President and Partner
University of Michigan – Bachelor of Arts in Business
25 years experience in gasket and seal manufacturing and supply chain management. APQP trained to ensuring compliance of supply chain partners and the McMasters Koss organization as a whole. Ensuring resources are available to meet Customer needs with best practice technologies and staffing.
Peter Gibbs – Chief Engineer and Partner
University of Michigan – Bachelor of Science in Mechanical Engineering
15 Years experience in materials testing, seal design and material selection in the automotive, power and electronics industries. Leading the establishment and staffing of the McMasters Koss Engineering facility which began operations in January 2024. Implementing the McMasters Koss ISO/IEC 17025 Testing and Calibration System and scheduling for registration by 2025.
Bill Jackovich – Office Manager
35 Years experience in O-Rings, Gaskets and Seals for the automotive industry supervising inside sales and shipping departments to ensure compliance to customer requirements and JIT delivery needs.
Barb Landry – Operations Manager
20 years experience in operations, supply chain and logistics to ensure compliance to customer delivery and product performance requirements. Working with the inside and outside sales teams to meet customer delivery commitments and ensure the most efficient allocation of inventory.
Please let us know how we can solve your sealing problem or meet JIT delivery requirements for your organization.
We provide solutions and supply products to manufacturers worldwide and can offer efficient solutions for your organization.
Reach out to management with your needs.
McMasters Koss Bulk Parts Shipment 
McMasters Koss Commercial O-Ring Inventory Hallway 
Customer Specific O-Ring Inventory 
McMasters Koss Bulk Inventory Area 
McMasters Koss Bulk OEM Storage Facility 
McMasters Koss JIT Delivery System 
McMasters Koss Durometer Testing Center 
McMasters Koss Inspection Capabiltiies 
ASTM Specifications for Testing and Compliance 
McMasters Koss Global Shipments 
McMasters Koss Headquarters Complex 
McMasters Koss Oil Seal Environmental Test Chamber 
Custom Molded Rubber Seals 
Fluorocarbon O-Rings and Molded Seals 
Extruded Rubber Gasket 
Custom Molded Rubber Seals 
O-Rings 
McMasters Koss APQP Compliance 
Custom Molded Ball Seals 
Custom Molded Rubber Seals 
Oil Seals 
Custom Molded Rubber Seals 
Custom Molded Rubber Seals 
Extruded Rubber Seals