Thinking about whether to turn to outsource companies services or not, you need to clearly understand what project requirements led you to this decision; what is important to you, and what criteria must be taken into account. Do you need to reduce the cost of hiring employees or increase quality points? Or, perhaps, you would like to optimize the time for testing and improve team performance? Evaluating these factors and making a decision on attracting an outsourcing team, you will clearly determine what type of services will be useful for you, what time periods are needed to complete the task and how you can reduce the costs. It is also worth taking into account that the process may not always be as short as you would like, but all investments will pay off with quality testing indicators.