QualMark Corporation designs, manufactures and markets equipment that exposes product design and manufacturing-related defects for the purpose of improving product quality and reliability. The Company's physical-stress-equipment supports improvements in the process of Design Verification Testing (DVT), a process by which electronic product manufacturers ensure their products perform within the determined operating ranges and Environmental Stress Screening (ESS), a testing process used by these same manufacturers to expose production-related defects. It operates a network of test centers, such as Accelerated Reliability Test Centers (ARTC), which provides comprehensive Highly Accelerated Life Test (HALT) and Highly Accelerated Stress Screen (HASS) test to support services for the industry. The services include accelerated reliability improvement test services using Omni-axial Vibration System (OVS) physical stress equipment performed in the ARTC test centers and at customer's site.