This website represents a repository and you put your research here. It is a bit different from a journal so if you need journal publication for recognition from your organisation, you would have to seek an actual journal, in that way.
See this help page for instructions how to add published or unpublished research to ResearchGate: https://help.researchgate.net/hc/en-us/articles/14293005132305-How-to-add-research. See also "Is ResearchGate a publisher?" in https://help.researchgate.net/hc/en-us/articles/14292596164753.