Team Tobirama

was a team led by the future Second Hokage, Tobirama Senju. It was comprised of himself, Hiruzen Sarutobi, Homura Mitokado, and Koharu Utatane. Very little is known of the team, but on occasion during the First Shinobi World War, they teamed up with Danzō Shimura, Kagami Uchiha, and Torifu Akimichi to carry out a mission as the Second Hokage's elite Escort Unit.

Trivia

 * Hashirama Senju appears alongside his brother and his team during a flashback. This is because Hashirama trained Hiruzen as well, who was seemingly being groomed to become Hokage from a young age.
 * In Naruto Shippūden: Ultimate Ninja Storm 3, Team Tobirama can be formed using Tobirama, Hiruzen and Danzō, despite the latter never officially being a member of the team.

Reference
Team Nidaime Equipo Tobirama