Analysis Group, Inc. (AG), founded in 1981 by economists Bruce E. Stangle and Michael F. Koehn, is an economic consulting firm based in North America. It provides economic, financial, and strategic analysis and expert testimony to law firms, corporations, and government agencies. The CEO and chairwoman of Analysis Group is Martha S. Samuelson. She was elected to the International Who's Who of Competition Lawyers and Economists (2012) and Euromoney's Guide to the World's Leading Competition and Antitrust Lawyers/Economists (2012).