Found out my landlord’s company is registered at my apartment. Is this a problem or a red flag?

I'm currently living in a 1 year temporary rental with a diplomatic clause. My landlord is temporarily living abroad, but I’ve noticed that his company is still registered at this address. Looking the company details up, the mailing address is elsewhere, but the headquarters is listed at my apartment. I only discovered this because a piece of junk mail addressed to his business somehow showed up. Should I be concerned about this? Is it possible that his person is still somehow registered here as well?