Irek Biliński is a professional in their field. They is proficient in English. Colleagues describe them as "Irka znam od wielu lat - zawsze mnie inspirował konsekwencją i twórczym podejściem do wielu spraw. Inspirująca jest jego droga, którą dotychczas przeszedł i doświadczenie, którym mógłby obdzielić kilka osób. Niezależnie od powyższego jest otwartym i miłym człowiekiem. " and "Irek is one of the most effective and impressive persons I had ever pleasure to cooperate with. A specialist in difficult cases, always optimistic and well balanced. You would be surprised by the power of his calm energy and perfect organization. Should anyone find himself in a difficult business situation, or need help in crafting and executing strategy and processes improvement or identifying the competitive advantage of his company - Irek and his co-mates from 4Results are definitely the best specialists in this part of the world to call. "