The best replacement for greenpeace is sea shepherd.

The best alternatives to greenpeace are rated as following:
★★★★★  sea shepherd
★★★★  nestle
★★  wwf
★★  friends of the earth
★  golden rice
★  japanese whalers
★  whalers
★  monsanto
  sierra club

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

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



Google Trends

Scale is based on the average worldwide traffic of greenpeace in all years. Click on graph for more.
greenpeace
sea shepherd
nestle