I got on LinkedIn in a previous life. When I started my business, I made a company page. I don't know if it influences any sales. Probably not. There are people that work for places with a similar company name that claim they work at my company. I checked on a few initially, they seemed to be real people. They must be picking from a list of company names and not paying close attention. Apparently, I have employees in other states and various countries on different continents. I pretty much leave my LinkedIn alone, except to communicate once in a while with people that I knew back when.
I would avoid ListedIn though. I signed up for that when I started my business. Never did anything on it after signing up. A few years ago I started getting those blackmail for bitcoin emails. Claimed they had my password. The password they included was for ListedIn. I called ListedIn to let them know. The guy said they can't be the source of the password, they weren't breached. Canceled that. They send me an email about every two days to update my info. Lets me know my email is working.