Consulting firms are professional service organizations that provide expert advice to businesses and governments. They help clients solve problems, improve performance, and implement strategies across various industries. Common areas of focus include management, finance, human resources, and technology. These firms often employ teams of specialists who analyze data, conduct research, and develop tailored solutions. Well-known consulting firms include McKinsey & Company, Boston Consulting Group, and Deloitte. Their services can range from short-term projects to long-term partnerships, depending on the client's needs and objectives.