This thesis focuses on contribution of users in innovation activities. Through the case analysis of a mid-small sized tech company specialized in technology testing, we study one of the main innovative projects, undertaken for a client. Employing interviews and questionnaires throughout our research, we identify characteristics of client-users who contribute substantially in the ideation development and testing of the new innovation. The company deviating from their routinized testing activities, integrate the knowledge generated by those users in a particular way. We observe, analyze and make a critique upon those knowledge integration strategies, implemented by the company at this stage. The study highlights how the firm responds to the stimulus of those users involvement, aiming to give an interpretation of the phenomenon.