I know there are many market maker firms that trade Options on indexes and options on stocks such as Group 1, Susquehanna, and Timber Hill. However are there firms out there that provide the same market making services/ firm proprietary trading for the electronic futures markets such as Eurex Eurostoxx, Dax futures, Bund Futures, 10 yr bond, ect. I would also be interested in firms that provide this service for US futures too. I am assuming most firms that have this service in the emini and electronic bond markets would have a presence in the pit too. Anyway if there were trading firms that did this I would appreciate if someone could provide some examples of firms that act as market makers on the electronic futures exchanges or could provide a link on where to find this kind of information.