Oct 4, 2007

OSI Systems Ranked 26 In Deloitte's Technology Fast 5o Program For Los Angeles

OSI Systems Ranked 26 In Deloitte's Technology Fast 5o Program For Los AngelesOSI Systems, Inc. (NASDAQ: OSIS), a vertically-integrated provider of specialized electronic products for critical applications in the security and healthcare industries, announced today that has been named to Deloitte's prestigious Technology Fast 50 Program for Los Angeles, a ranking of the 50 fastest growing technology, media, telecommunications, and life sciences companies in the area by Deloitte & Touche USA LLP, one of the nations leading professional services organizations. Rankings are based on the percentage revenue growth over five years from 20022006.

OSI Systems increase in revenues of 264.4 percent from 2002 to 2006 resulted in a 26th ranking in the Technology Fast 50 for Los Angeles.  

To qualify for the Technology Fast 50, companies must have had operating revenues of at least $50,000 in 2002 and $5,000,000 in 2006, be headquartered in North America, and be a company that owns proprietary technology or proprietary intellectual property that contributes to a significant portion of the company's operating revenues; or devotes a significant proportion of revenues to the research and development of technology. Using other companies' technology or intellectual property in a unique way does not qualify.

Companies from the 16 regional Technology Fast 50 programs in the United States and Canada are automatically entered in Deloitte's Technology Fast 500 program, which ranks North America's top 500 fastest growing technology, media, telecommunications and life sciences companies. For more information on Deloitte's Technology Fast 50 or Technology Fast 500 programs, visit www.fast500.com.

About OSI Systems, Inc.

OSI Systems, Inc. and its subsidiaries is a vertically integrated designer and manufacturer of specialized electronic systems and components for critical applications. The Company sells its products in diversified markets, including homeland security, healthcare, defense and aerospace.  The Company has more than 30 years of experience in electronics engineering and manufacturing and maintains offices and production facilities located in more than a dozen countries. OSI Systems implements a strategy of expansion by leveraging its electronics and contract manufacturing capabilities into selective end product markets through organic growth and acquisitions. For more information on OSI Systems, Inc. or any of its subsidiary companies, visit www.osi-systems.com.

About Deloitte


Deloitte refers to one or more of Deloitte Touche Tohmatsu, a Swiss Verein, its member firms and their respective subsidiaries and affiliates. As a Swiss Verein (association), neither Deloitte Touche Tohmatsu nor any of its member firms has any liability for each others acts or omissions. Each of the member firms is a separate and independent legal entity operating under the names Deloitte, Deloitte & Touche, Deloitte Touche Tohmatsu or other related names. Services are provided by the member firms or their subsidiaries or affiliates and not by the Deloitte Touche Tohmatsu Verein.

Deloitte & Touche USA LLP is the US member firm of Deloitte Touche Tohmatsu. In the US, services are provided by the subsidiaries of Deloitte & Touche USA LLP (Deloitte & Touche LLP, Deloitte Consulting LLP, Deloitte Financial Advisory Services LLP, Deloitte Tax LLP and their subsidiaries), and not by Deloitte & Touche USA LLP.

For Further Information

OSI Systems Inc
Jeremy Norton Director, Investor Relations                       
12525 Chadron Ave
Hawthorne CA 90250
Tel: (310) 349 2372
E: jnorton@osi-systems.com