No, they are not.
Jehovah’s Witnesses call all other religions “false religion”, the members of all other Christian denominations “counterfeit Christians” and their rites “poisonous waste”.
“Suppose you found out that your whole neighbourhood has been contaminated. Someone has secretly been dumping poisonous waste in the area, and now the situation is life threatening. What would you do? No doubt, you would move away if you could. But after doing that, you would still face this serious question, ‘Have I been poisoned?’
A similar situation arises with regard to false religion. The Bible teaches that such worship is contaminated with unclean teachings and practices. (2 Corinthians 6:17) That is why it is important for you to get out of ‘Babylon the Great’, the world empire of false religion. (Revelation 18:2,4)”
(Quotation from “What Does the Bible Really Teach?” page 154, Watch Tower Bible and Tract Society, 2005, PDF)
(see God’s New People, Satan, Armageddon and the False Religions)