The research methodology starts from the calculation of the coefficient for each individual company in order to obtain the indicators by calculating the arithmetic mean, median and quartile. As econometric stochastic models have little value for predicting or explaining the growth process at the level of individual companies, the central subject of interest is understanding the growth process at the level of an individual company. The sustainable growth rate of a company depends on the activity of the company. Numerous factors can affect the growth of a company, but the influence of individual factors on the growth of a company is rarely significant and permanent. The results of the research indicate a very asymmetric distribution of the size of enterprises, with a small number of large enterprises and a large number of small enterprises. The model of sustainable growth is an effective tool for financial planning and directing business policy towards stimulating growth in certain industries.