A number of software testing services providers out there, whom are engaged in the deliverance of perfect quality software testing and quality assurance mechanisms. Every software testing firm has designed their own certified and fully advanced software testing frameworks and tools to judge the reliability of a software. As the competition is becoming more intensive with the passage of time, so any ineligibility in performing perfect quality software testing artifacts can make a huge drastic impact on the desired optimal expected performance. As a software development manager, you have to hire a software testing services provider if you want to sustain your position in market. Below you see the list of top quality software testing structures used by a software testing services provider.