The insurance market belongs to the dynamically developing branches of the national economy even in the period of the debt crises. Vast damages, which arise as a consequence of natural catastrophes, object risks or as a result of subject risks are stimuli for the growing interest of all economic subjects operating not only in insurance market but also in the national economy. The insurance industry performs its basic functions – accumulation, redistribution, stimulation and control functions – in complex economic conditions. The significance of the control function increases in direct proportion to a complicated economic-social situation since the level of insurance fraud also occurs in that period. This paper addresses the development of the insurance market in the Slovak Republic, Poland and Ukraine. We focused our attention on selected important indicators, namely: concentration index, written premium, penetration, insurance density, technical reserves and investment activity of commercial insurance companies.