• Globally, enterprises prioritize quality assurance in the IT application zone. The software testing services’ realm is inclining towards quality assurance in order to ensure enterprise application performance and quality. Besides, the rapid increase in newer technologies, mobile, and Internet of Things (IoT) etc. have brought a significant impact on the software testing industry. With the emergence of mobile as well as cloud based applications, the various trends reflect in the software testing market. Nowadays, the testers are not only dealing with these applications, but also with devices themselves. Today, the software testing industry experiences significant trends like Mobile application testing, Cloud-based Testing (Virtualization and Cloud Computing), Testing in the Agile Development Environment, Context-driven test, Security Testing, Crowdsourced testing, Proliferation of open-source testing tools and Tester Certification etc. Unlike traditional software testing industry, today, the global software testing industry experiences a paradigm shift from being product centric to customer centric. With the advent of colossal amount of technologies, the testing service vendors reinforce enterprises with various testing solutions. As software testing services gain more relevance, enterprises require expeditious vendors to ensure high availability and bug-free software applications which are vital to improve customer satisfaction and to increase their revenue. CIOReview understands software testing requirements of the C-level executives with respect to their application landscape. Thereby, we bring a list of “20 Most Promising Software Testing Solution Providers” to assist C- level executives in selecting most suitable vendors who occupy technical know-how and experience. A distinguished panel comprising of CEOs, CIOs, industry analysts and CIOReview editorial team have scrutinized various companies before finalizing these vendors who render industry-specific testing services.