ENThe article analyses teamwork and sustainable development as main factors of increasing competitiveness in long-term development of an organisation. It is being emphasized that the competence of human capital, civic responsibility, cooperation motivates organisations to comply with environmental, social and economic requirements of sustainable development. It has been noticed that one of the ways to understand the importance of competitive advantage is thinking about development as a social process which enables organisations to obtain experience of sustainable development, to apply it for problem-solving and creation of their own future. On the organisational level, applying the principles of teamwork, employees’ intellectual knowledge is being transformed into competitive advantage of the organisation.