Ernst & Young, commonly referred to as EY, is a multinational professional services firm. With its headquarters in London, the company operates in over 150 countries worldwide and employs over 300,000 people. EY provides a range of services including assurance, advisory, tax, and transaction advisory services to clients across a variety of industries. Founded in 1989 through the merger of two separate companies – Ernst & Whinney and Arthur Young & Co. – EY has since grown into one of the largest professional services firms in the world. It is a member of the Big Four accounting firms, along with Deloitte, KPMG, and PwC. EY’s assurance services include auditing, financial accounting, and risk management. Its advisory services offer consulting and strategy services, as well as technology consulting and cybersecurity. The firm’s tax services provide assistance to clients with their tax planning and compliance needs, while its transaction advisory services support clients with mergers and acquisitions, divestitures, and capital raising activities. EY places a strong emphasis on innovation and has invested heavily in new technologies, including artificial intelligence and blockchain. The company also has a focus on corporate responsibility and sustainability, working to reduce its environmental impact and supporting social causes such as education and diversity. Overall, EY’s services are designed to help clients navigate today’s rapidly changing business environment, manage risk, and seize opportunities for growth.