IT occupation enables companies to distribute products anywhere in the world, easier to find investors, create growth and create new jobs. These companies grow much faster than small and medium-sized enterprises of other industries due to the deals of high value jobs and the development of technology. But it is the growth rate, especially if it is uncontrolled, that can cause significant problems for small and medium-sized IT companies in areas of change management, managing the increasing number of employees and innovation management. Challenges of managing growing Companies require both from managers and from employees to own and build specific skills that will enable the company to keep their growth stable, long-term and viable. This paper highlights the importance of holding entrepreneurial skills for successful management and creation of sustainable growth for small and medium-sized enterprises, with particular emphasis on IT companies where most managers and employees have exclusively IT skills. The paper also mentions examples of companies that demonstrate the importance of entrepreneurial skills in an IT company.