Actually, MP9. Steyr sold the TMP to a Swiss firm who has modified it's design a little bit.
"The Brьgger Thomet MP9 submachine gun started its life in 1992 as the Steyr TMP. The famous Steyr-Mannlicher company developed it in Austria, but Austrian export licensing laws, lack of a sales and resulted in the decision of Steyr to drop the TMP from the product line in 2001. Then, another well-known company, Brьgger Thomet AG of Switzerland, bought all the drawings, patents and rights for the TMP design, and set its team to fully develop the promising design which resulted in over nineteen engineering changes in the product. At the present time the MP9 (which stands for 'Machine Pistol 9 millimeter') is produced and marketed by the B+T. According to available information, B+T MP9 is already in use by some police units in Switzerland. "