With the revolutions in the dimension of the science, human needs are steadily changing. The developments, discoveries and inventions, which could not be imagined by those having lived in the previous centuries, are still seen as insufficient in the technology era we live in. That’s why new technologies are being researched. The fundamental one of these new technologies is described as nanotechnology introduced as the new discovery of today. Nanotechnology is considered a fertile farm for the enterprises; therefore they focus on this technology for investment. In order to capture the market, maximize the value and profit and gain economic and politic power, both states and enterprises are trying to obtain this technology via their accomplished R&D investments as soon as possible. Therefore, the very essential effects of nanotechnology investments on costs are researched. In addition, several financial and econometrical analyses are applied on some enterprises that are registered in Borsa Istanbul (Istanbul Stock Exchange), and that carry out nanotechnology investments. As a result of the analyses, it is stated that the costs of the products obtained by nanotechnology operations are decreased, that there is a negative relation between investments and costs of sales, and that there are increases in selling capacity of the enterprises through this kind of investments.