Some of the companies that OSI prides in doing business with:

• AT&T
  
• JP Morgan Chase
  
• Dun & Bradstreet
  
• Lockheed Martin
  
• McGraw Hill Companies
  
• Lucent Technologies
  
• Goldman Sachs
  
• Arrow Electronics
  
• Verizon
  
• HIDTA (High Intensity Drug Traffic Agency)
  
  and other Fortune 500 companies