MEZZANINE
Этап после получения третьего (обычно) раунда инвестиций, в классической схеме идет прямо перед выходом на IPO. С точки зрения инвестора это стадия расширения (mezzanine stage) - завоевания доли рынка, стабилизации прибыли.

Mezzanine financing is a late-stage venture capital loan, customarily employed as the final round of financing, prior to an IPO. A mezzanine loan make sense for a company expecting to go public - usually within 6 to 12 months.

This type of loan is usually structured to be repaid from proceeds of a public offerings, or to establish floor price for an IPO.
The objective of the mezzanine funding is to add the fuel necessary to significantly accelerate the growth curve of the company.

Mezzanine financing is typically known as bridge financing because it finances the growth of expanding companies prior to an IPO. Mezzanine financing can cover the expenses that an IPO involves.

Mezzanine financing is provided for the purpose of assisting a particular company to expand in a major way.