Each company is looking for the best way to raise capital. Nowadays there are a lot of modern possibilities of fundraising, and the development of cryptocurrencies and crowdfunding has made it possible to create new ways of financing projects. This article seeks to present the Initial Coin Offering (ICO) concept, which is an alternative and modern source of funding. It is similar to the Initial Public Offering (IPO) and crowdfunding. The aim of this article is to present the advantages and disadvantages of Initial Coin Offering. This concept is often associated with risky funding sources, but every business should be able to get acquainted with this form of financing.