List of Computer Security Companies

List of the top computer security companies in the world, listed by their prominence with corporate logos when available. This list of major computer security companies includes the largest and most profitable computer security businesses, corporations, agencies, vendors and firms in the world. If you are wondering what the biggest computer security companies are, then this list has you covered. This list includes the most famous computer security companies in the industry, so if you're thinking of working in the computer security industry you might want to look to these company names for jobs.

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List features reputable companies like Symantec Corporation, McAfee and more!

This list answers the questions, "What are the biggest computer security companies in the world?" and "What are the most successful computer security companies?"
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  • CheckPoint Software Technologies
    Computer security, Software, Computer hardware
    Check Point Software Technologies is a leader in securing the Internet. The company is a marketleader in the worldwide enterprise firewall, personal firewall, data security and VPN markets. Check ...more
  • Clearswift
    Computer security
    Clearswift is an information security company. Clearswift operates out of offices in Europe, Australia, Japan and the United States. Clearswift has a partner network of more than 900 resellers across ...more
  • Comodo Group
    Computer security, Internet security
    Comodo Group, Inc. is a privately held group of companies providing computer software and SSL digital certificates, based in Clifton, New Jersey in the United States. It has offices in the United ...more
  • Cryogenix
    Computer security, Software
  • EarthLink
    Computer security, Information technology, Telecommunications
    EarthLink is an IT services, network and communications provider headquartered in Atlanta, Georgia, US. The company serves more than 150,000 businesses and 1 million U.S. consumers.
  • Entrust
    Computer security, Enterprise software
    Entrust Inc. is a $130 million privately owned software company with 350 employees. It provides identity management security software and services in the areas of public key infrastructure, ...more