It's not clear to me if this is a joke/game/whatever or a real company founded by people who are really big fans of half life as they claim.

You can search for corporations in massachusetts where they claim they are located.[1]

Surprisingly to me, there are 4 results for "Black Mesa"

[1]https://corp.sec.state.ma.us/corpweb/CorpSearch/CorpSearch.a...