The Metropolitan Washington Airports Authority is the government agency which manages Washington National and Dulles airports and has a role in construction of the metro Silver line to the airport and the Dulles Toll Road.
The airport authority has resisted making the new contract for its CEO public, arguing that they’re not funded with public dollars but by fees earned from running the airport. Of course the government gave them the airport, board members are appointed by government, and they receive substantial government funding for capital projects, and much of their operating revenue comes from ticket taxes.