A Tgp flavor was implemented in Pontis LTD, a leading provider of Customer Base Management solutions.
The Tgp implementation called ModelTalk was led by ShacharSegev, AtzmonHenTov, and LiorSchachter [http://www.openu.ac.il/home/lorenz/papers/dsm08/dsm08-modeltalk.pdf]
ModelTalk is used by dozens of implementers and provides Pontis its major business advantage in the market.