In an age of ubiquitous globalization in which international exchange is a common activity, the goal of participants is to strengthen competitiveness, expand into new markets and ultimately increase the balance of payments. This is reflected in the components of gross domestic product, investment and exports, which as such are a kind of measure of development and wealth of a country. In this paper, their individual significance as well as their interdependence are analyzed. In addition to capital, investments in the company also bring new jobs, new technological knowledge, increased production, time and increase opportunities to enter new markets or increase share in existing markets. On the other hand, the goal of companies is to be as export-oriented as possible, either because of the takeover of a larger market cake, or because of the increase in the inflow of funds. In order for a company to truly take advantage of the greatest possible degree of export orientation, they need to achieve above-average productivity, which they often achieve through investment. Thus, this analysis of the correlation between the annual change in fixed assets and the change in the size of exports is emphasized. The analysis is presented on the basis of financial data of the largest Croatian export companies.