EY, or Ernst & Young, is one of the largest multinational professional services firms in the world, providing a range of services including audit, tax, and advisory. With a commitment to building a better working world, EY helps organizations navigate complex challenges and improve their performance. Founded in 1989 through a merger, EY operates in over 150 countries and employs hundreds of thousands of professionals. The firm is known for its strong emphasis on innovation and technology, helping clients adapt to the rapidly changing business landscape while maintaining high standards of integrity and quality.