ENThe private sector has had to change and renew business practices in order to survive in the context of intensifying globalization of national economies. Information and communication technologies (ICT) are well known as key technologies to promote competitiveness and economic growth in the private sector. Although it is known theoretically that ICT contributes to companies by providing more visibility, more information, lessening barriers in the market and facilitating financial operations, the impacts of ICT use on private sector are various and with diverse aspects. Therefore, in this paper we extend an existing approach to ICT economic impact areas by proposing a complex view on the subject and reasoning the main theoretical impact areas of ICT. The paper aims to develop and propose conceptual ICT impact model, integrating three dimensions – performance, growth and innovation, and empirically validate it in the case of private sector in Lithuania. Keywords: ICT impact model; private sector; competitiveness; economic growth.