A fund company is a financial organization that manages and operates mutual funds. A mutual fund is an investment vehicle that pools money from various investors to purchase securities such as stocks, bonds or other assets. The fund company charges fees for its management services and invests the pooled funds on behalf of the investors in accordance with a stated investment objective. Some examples of well-known fund companies include Fidelity Investments, Vanguard, and BlackRock. These companies offer a wide range of mutual funds to meet different investor needs and goals.