I've gone to the Security preferences.. it doesn't actually list the company name.... But reads "Some System Software...."
Clicking the "Allow" button seems to do nothing except toggle its appearance from light to dark.
Brand New Install of 10.13.2 (clean upgrade) and only minimal stuff is installed so far. So unless things such as MySQL or NetUse (both startup apps) cause conflicts, I'm really at a loss as to why I can't get LS running with 10.13.2