Whether to use Open Source tools and services is a business decision made by organizations management. Normally decision is to use a combination of Open Source and Commercial products. Nowadays there are great amount of different Open Source tools available so there are plenty to choose from.
Open Source tools can save money but even more important factor, in decision-making, has noticed to be independency. By choosing Open Source tool to your service you get freedom to decide how and when to use it and when needing more components, bug fixes etc. those can be done without going thru whole process contacting vendor and waiting new version to be available.
Cybercom has used Open Source tools and services many years so we have expertise to find, suggest and develop great tools for your service. We are using tools like J2EE, PHP, Tomcat, Jboss, Apache, PostgreSQL, Perl, MySQL, Linux, Alfresco, Drupal etc.