[4] Broich played in several Bavarian youth teams such as ASV Rott am Inn, TSV 1860 Rosenheim and SpVgg Unterhaching.

Later he played for the U23 team of Unterhaching and could have earned promotion to the Regionalliga Süd (Then Germany's 3rd league), but the manager did not include him in the first squad so he decided to leave.

With Burghausen, he became a standout midfielder and caught the eye of several top Bundesliga teams, including FC Bayern Munich.

[5] At the start of the 2004–05 season, Mönchengladbach fired manager Holger Fach and hired Dutch coach Dick Advocaat.

However, Broich clashed on and off the field with his new manager, Advokaat criticising "Mozart's" lack of physicality and free-spirited style, even going as far to sending him down to play with the club's second team.

Advocaat was eventually fired, and Broich, under new trainer Horst Köppel, returned to the starting rotation, playing a large role in helping the team avoid relegation.

FC Köln, hoping to bolster their squad to gain promotion from the second league to the Bundesliga, who were also strongly interested, who Broich signed with for the 2006–07 season.

However, back in the Second Bundesliga, he clashed with newly recruited coach Christoph Daum, who he felt was not giving him enough playing time.

Broich signed a one-year contract on 9 June 2009, but, after an early season-injury, he had a slow start and considered giving football in Germany up for good.

[13] In the Grand Final on 4 May 2014, Broich was named joint Man of the Match along with Iacopo La Rocca as Brisbane came from a goal down to defeat Western Sydney Wanderers 2–1.

[21] A documentary film about Broich titled Tom Meets Zizou was released to German cinemas in 2011, after eight years in the making.

[22] In August 2017, Broich was appointed an assistant coach of National Premier Leagues Queensland club Brisbane City FC.