KKR, or Kohlberg Kravis Roberts & Co., is a global investment firm founded in 1976. It specializes in private equity, credit, and real estate investments. KKR is known for its leveraged buyouts, where it acquires companies using a combination of debt and equity to enhance returns. The firm has a diverse portfolio, investing in various industries such as technology, healthcare, and energy. KKR also focuses on sustainable investing, aiming to create long-term value while considering environmental, social, and governance (ESG) factors. Its global presence includes offices in major financial centers around the world.