Very valid question. The answer is yes and no.
The only similar suite of online collaboration tools I know about (but have never used) is LibreOffice Online (LOOL), but it seems to be not yet ready for prime time.
I though know alternatives to some of the more common components, namely date (or other simple) polls and collaborative plain text editors (not word processors).
I know quite some free (as in free speech) Doodle clones, the most prominent ones are dudle, du7f and Framadate. I run a dudle instance for the Swiss mech keeb scene and know the guy behind du7f personally.
For collaborated text editing I know Etherpad (plain text) and HackMD (Markdown). Both are often used for collaboratively writing meeting minutes in associations I’m active in.
For everything else I first check if Framasoft has some tool (and if it has documentation in other languages than French ;-), otherwise, I start to search at DuckDuckGo or look in the AlternativesTo directory.