Tomomi Nishimoto was born in Osaka, Japan in 1970.
In 1996, she entered St. Peterburg National School of Music in Russia, and studied with Viktor Fedotov and Ilya Moussin.
In 1998, Tomomi Nishimoto made a debut to Japan by conducting Kyoto Symphony Orchestra, which was followed by series of successful conducting of major Japanese orchestras.
Tomomi Nishimoto was awarded with Idemitsu Award in 1999. She also received St. Stanislav Medal for her highly acclaimed performance of a Mozart program in 1999 with a chamber orchestra, which consisted of musicians of St. Peterburg Philharmonic (former Leningrad Philharmonic). In the following years, she was awarded Sakuya Konohana Award from the City of Osaka (2000), ABC Music Award (2002).
In 2002, Tomomi Nishimoto was appointed Chief Conductor of Bolshoi Symphony Orchestra. She brought the orchestra to Japan in September 2002.
In May 2004, Tomomi Nishimoto assumed the position of artistic director and chief conductor of Russian Symphony Orchestra of Tchaikovsky Foundation.