As researcher and economic historian Ryggvik's methodological approaches are comprehensive, from a broad political economy approach to more specific analyses of humans relations to technology, the latter most notably in his study of safety systems. A common empirical starting point for many of his studies is the oil industry. However, he also has written about other subjects, such as trade unions and Norwegian Railways.
Helge Ryggvik holds a Dr. philos degree in History at the Faculty of History, University of Oslo (2000). He has worked as a researcher at TIK since that year.
During recent years Ryggvik has worked for Norsk Oljemuseum [The Norwegian Petroleum Museum] in a project initiated by the Norwegian Parliament about the Norwegian offshore oil divers. He has also worked on safety projects financed by the Norwegian Research Council. The latest project is “Robust regulation”, in cooperation with researchers from University of Stavanger and SINTEF.