After not renewing his contract with the New Zealand Rugby Union in 2002, Reihana managed to get an overseas contact with Premiership side the Northampton Saints. He was used at fullback and became an influential figure for the Saints and even won the 2003–2004 PRA Players' Player of the Year Award.
Reihana was scheduled to return to New Zealand rugby after his stint in Europe,[2] but it did not materialise as he decided to stay in England citing personal reasons.[3] Resuming his career with the Saints, Reihana was promoted to captain after Steve Thompson decided to step down as co-captain.[4]
On 2 October 2010 Reihana scored 17 points against the Exeter Chiefs to take him through the milestone of 1,000 points for the Saints.
Bruce left the Northampton Saints at the end of the 2010–11 Aviva Premiership to join the French team, Bordeaux. This was announced over BBC Radio Northampton during the final Aviva Premiership game of the season, against Leeds Carnegie, as Bruce Reihana joined the field.
At the end of the 2013–2014 Season, Reihana retired as a player from professional rugby and became the skills coach for the Bordeaux rugby team. He has since moved to Bristol at the beginning of the 2017/18 season to work with Bristol Rugby.[6]
Bruce Reihana was the Skills and Performance Coach with Bristol Bears and even more so still trained with his players in his fitness programs, he followed this mantra in doing the same with Bordeaux Begles Rugby and is still up with the fitness of The youngest players with in the first XV.
In August 2020, Reihana left his role with Bristol Bears and became skills and attack coach for Clifton Rugby, linking up with former Bristol Captain Matt Salter for the National 2 south frontrunners as they bid to seal promotion to National League 1.
In June 2021 he left Clifton to join Montpellier in the French Top 14[7] and was part of their title-winning staff in the 2021–22 season[8]
He is currently the attack coach for the ProD2 team CA-Brive.[9]