Deloitte

Deloitte, officially known as Deloitte Touche Tohmatsu Limited, is a leading global professional services network headquartered in London, United Kingdom. Founded in 1845, it has grown to become the largest professional services firm in the world, employing over 470,000 professionals across more than 150 countries. Deloitte is a member of the "Big Four" accounting firms and reported a global revenue of approximately US$70.5 billion in 2025. Deloitte offers a wide range of services, including audit and assurance, consulting, tax and legal, and risk and financial advisory. Its clients include nearly 90% of the Fortune 500 companies, over 9,000 private companies in the U.S., and major multinational enterprises across various industries such as consumer products, energy, financial services, healthcare, and the public sector. The firm is committed to making a significant impact through its mission and values, focusing on integrity, excellence, and the development of its people.