OSI Systems, Inc. engages in the design and manufacture of specialized electronic systems, and components for critical applications. The company is headquartered in Hawthorne, California and currently employs 6,681 full-time employees. The firm sells its products and provides related services in diversified markets, including homeland security, healthcare, defense and aerospace. The company has three operating divisions: Security, providing security and inspection systems and turnkey security screening solutions, Optoelectronics and Manufacturing, providing specialized electronic components for its Security and Healthcare divisions, and to third parties for applications in the defense and aerospace markets, among others, and Healthcare, providing patient monitoring, cardiology and remote monitoring, and connected care systems and associated accessories. The company designs and manufactures its optoelectronic devices and value-added subsystems and provides electronics manufacturing services primarily for original equipment manufacturer (OEM) customers.