请问portfolio company 是个什么公司？

我也觉得是被某基金投资的一个公司，处于该基金的“投资组合”中一个公司。

A portfolio company is a company or entity in which a venture capital firm, buyout firm, holding company, or other investment fund invests. All of the companies currently backed by a private equity firm can be spoken of as the firm’s portfolio.

不会查吗？
A portfolio company is a company or entity in which a venture capital firm, buyout firm, holding company, or other investment fund invests. All of the companies currently backed by a private equity firm can be spoken of as the firm’s portfolio.

Unlike most traditional asset managers that trade in public securities, private equity and venture firms often take a “hands-on” approach to their portfolio companies through a combination of financial engineering (e.g., realizing expense synergies, changing capital structures), installment of executive management and board members, and significant contributions to the development of a target company’s business strategy.

结合以上句子，应该是私募股权基金和风险投资基金的“目标公司”，从买入目标公司，优化，到最后，IPO或者是收购兼并。