Katherine McG. Sullivan General Counsel Citigroup Inc. Revenue: $690 billion Employees: 174,900 As general counsel of Citigroup's global consumer businesses, Kate Sullivan heads a legal team of attorneys located throughout the United States, Europe, South America, Africa and Asia. The global consumer group businesses include Citibank, Travelers Life and Annuity, Travelers … [Read more...] about The 100 Most Influential Irish Americans in Business: K. Sullivan – E. Trainor