The leading consulting firm in the world. McKinsey&Company produces weekly articles on industries in which they specialize.
BCG creates frameworks and methodologies for diverse industries particularly management and strategy they frequently create monthly publications across industries and around the world.
The IXL Center is one of the most recognized Innovation and Management Consulting firms in the world, they specialize in Innovation publications.
Pwc is a leading consulting company specialized in accounting and finance, they are one of the big four global auditing companies.