The best replacement for netezza is teradata.

The best alternatives to netezza are rated as following:
★★★★★  teradata
★★★  exadata
★★  greenplum
★★  hadoop
★★  vertica
★★  db2
★  hana
★  redshift
★  datallegro
★  sap hana
★  sybase iq
  paraccel
  pure data
  oracle exadata

Your alternative for netezza is not listed? Suggest!
Speaking about netezza, one probably shouldn't forget about informatica.

Other search terms related to netezza and their ratings are:
★★★★★ informatica
★★★★ sas
★ datastage
You have in mind a companion for netezza and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of netezza in all years. Click on graph for more.
netezza
teradata
exadata