Among the more important decisions that an entrepreneur makes is that of raising capital. Many choices have to be made in this context: Debt versus Equity. Own funds versus Funding from outside investors and so on. These choices have long term implications for the entrepreneur as well as the start-up. Equity funding is essential for the growth of a startup. Apart from providing critical funding equity investors also often bring added value by way of connections and strategic advice. At the same time raising equity capital means sharing control and sharing wealth with the investors in the firm. Allowing investors to engage with the management of the startup calls for a certain degree of compatibility between the investor and the management of the enterprise. Absence of such compatibility can lead to unhappy relationships between the investor and the management team. All things considered, managing the equity of a start-up is among the most critical decisions that an entrepreneur needs to make. It involves many trade-offs on the entrepreneurial journey. Which makes Managing the Equity of A Start Up a challenge. What does dilution of equity mean? How does the arithmetic of dilution work? How does an entrepreneur decide on when to raise equity? And how much of equity to raise?