Deloitte
Deloitte is a global network of legally separate member firms providing audit, consulting, tax, risk advisory, and related professional services.
Deloitte Touche Tohmatsu Limited: The UK private company limited by guarantee that coordinates the Deloitte network without providing client services itself. It coordinates member firms while leaving them legally and operationally distinct.
Financial statement audit: An independent examination of whether an entity’s financial statements fairly follow an applicable reporting framework. It is a prominent audit engagement for Deloitte member firms.
William Welch Deloitte: An English accountant who founded an accountancy practice in London in 1845. His practice gave the modern network its name and an early institutional root.
PricewaterhouseCoopers: A global network of member firms providing audit, tax, consulting, and related professional services. PwC competes with Deloitte across many of the same global service markets.
Professional services: Specialized services that apply expert knowledge to organizations’ financial, legal, technological, or operational needs. Deloitte’s offerings belong to this broad service economy.
Technology consulting: Advice and implementation work involving software, data, infrastructure, and digital operating models. Deloitte uses technology expertise in transformation and systems engagements.
Deloitte, Haskins & Sells: An international accountancy firm formed through the combination of Deloitte Haskins & Sells and Haskins & Sells. It was one of the predecessor firms that joined to create Deloitte Touche Tohmatsu.
EY: A global network of member firms providing assurance, consulting, tax, and strategy services. EY is another large professional-services network competing for similar clients and talent.
Audit: An independent examination of financial information, controls, or compliance against defined criteria. Audit is a core service line, especially for public-company financial statements.
Cybersecurity: The practices and technologies used to protect digital systems, networks, and information from attack. Cyber risk and security assessments form part of advisory and consulting work.