MUNZ [1]: The Union for seafarers, port and related workers.
RMTU [2]: The Union for rail and maritime transport workers.
EPMU: [3] The Union for Air Transport and Freight workers.
FARSA [4]: The Union for flight attendants and related staff.
NDU [5]: The Union for drivers in the road transport industry.
Links:
[1] http://www.munz.org.nz/index.htm
[2] http://www.rmtunion.org.nz/
[3] http://www.epmu.org.nz/
[4] http://www.farsa.co.nz/
[5] http://www.nduunion.org.nz/