A government transparency group has urged Delaware’s congressional delegation to introduce legislation to create a national database of beneficial owners of corporations and limited liability companies.

Delaware Coalition for Open Government said Tuesday that it had contacted U.S. Sen. Tom Carper, D-Delaware; U.S. Sen. Chris Coons, D-Delaware; and U.S. Rep. Lisa Blunt Rochester, D-Delaware, last week asking them to sponsor a bill aimed at helping law enforcement fight criminal activity associated with LLCs, after a series of high-profile cases involving the secretive entities came to light in recent years.