Trying to think of others.
Kotlin was 2011, and is JetBrains. JetBrain's is 1500 people. So big, but not giant.
Rust is 2013 Mozilla is only 750 people
So perhaps Major Tech Giant is over-stating it. But definately most other things in the last decade have a major established tech firm backing it.
Julia has basically nothing. Starting out as a MIT project, and then Julia Computing is a tiny startup; with like what 50 people now?