Alfred Stepan, a professor of political science at Columbia University, observed that the SNI differed from similar agencies in other countries.
Brazil | National Football League | National Register of Historic Places | National Hockey League | England national football team | Central Intelligence Agency | National Basketball Association | National Science Foundation | National Geographic | National Trust | National Endowment for the Arts | National Geographic Society | BBC World Service | Argentina national football team | National Trust for Places of Historic Interest or Natural Beauty | National Park Service | National League | Australian National University | National Guard | National Geographic Channel | National Institutes of Health | Internal Revenue Service | National Guard of the United States | National Collegiate Athletic Association | United States National Research Council | National Portrait Gallery | National Academy of Sciences | Indian National Congress | United States men's national soccer team | National Research Council |