Ernst & Young(EY) Global Limited, trade name EY is a multinational professional services partnership. EY is one of the largest professional services networks in the world. Along with Deloitte, KPMG and PwC, it is considered one of the Big Four accounting firms. It primarily provides assurance, tax, information technology services (including managed services in areas like Cybersecurity, Cloud, Digital Transformation and AI), consulting, and advisory services to its clients.
EY operates as a network of member firms which are structured as separate legal entities in a partnership, which has 312,250 employees in over 700 offices in more than 150 countries around the world. The firm's current partnership was formed in 1989 by a merger of two accounting firms; Ernst & Whinney and Arthur Young & Co. It was named Ernst & Young until a rebranding campaign officially changed its name to EY in 2013, although this initialism was already used informally prior to its sanctioning adoption.
In 2019, EY was the seventh-largest privately owned organization in the United States. As of 2023, EY has continuously been ranked on Fortune magazine's list of the 100 Best Companies to Work For for the past 25 years, longer than any other accounting firm.
