According to Investopedia, venture capital is financing that investors provide to startup companies and small businesses that are believed to have long-term growth potential. For startups without access to capital markets, venture capital is an essential source of money. Risk is typically high for investors, but the downside for the startup is that these venture capitalists usually get a say in company decisions.
According to Investopedia, private equity is capital that is not noted on a public exchange. Private equity is composed of funds and investors that directly invest in private companies, or that engage in buyouts of public companies, resulting in the delisting of public equity. Institutional and retail investors provide the capital for private equity, and the capital can be utilized to fund new technology, make acquisitions, expand working capital, and to bolster and solidify a balance sheet.