Apple, Amazon and Starbucks topped Fortune magazine's list of the World's Top 50 Most Admired Companies. Companies on the list with a large presence in Iowa include No. 4 Berkshire Hathaway Inc., whose Berkshire Hathaway Energy subsidiary owns MidAmerican Energy. Moline, Ill.-based Deere & Co., which operates a manufacturing plant in Ankeny, was No. 50 on the list. The "Most Admired" research reviews a company's performance on nine criteria: innovation, people management, use of corporate assets, social responsibility, quality of management, financial soundness, long-term investment value, quality of products and services, and global competitiveness.