Rockville, Md.-based proxy advisory firm Institutional Shareholder Services Inc. (ISS), is buying a portal that provides interactive online access to governance information.

ISS announced on Wednesday it has acquired San Francisco-based iiWisdom’s governance business, which aims to enhance relationships between public companies and their institutional investors by allowing investors to more easily access proxy information and corporate data online.

The terms of the deal were not disclosed.

“Proxy reports are an increasingly important tool for communicating company governance practices and fostering dialogue. The provision of these reports in a format consistent with investor workflows allows for better communication between companies and their institutional investors and fits naturally into our mission to provide high quality interactive data aimed at facilitating dialogue and empowering investors in their decision making,” says Stephen Harvey, chief operating officer of ISS, in a statement.

ISS says it intends to further develop the iiWisdom offerings to include research on important global governance and responsible investment topics.