Other companies? Companies also need things, so they would also need things to buy and sell. Buying and selling to each other doesn’t seem entirely unreasonable, particularly if the goods are non-physical. A company selling editing services for articles to a company that writes those articles for a news company who might be selling stocks to an investment company, and ad space to an ad company, etc.
Realistically, though, that doesn’t tend to be that high a priority, or much of a long-term worry. Most of the concern these days seems to be focused more on the short-term profit more so than anything else, even if it will ultimately harm the company.
Not that it would really matter for most, since a lot of the people who might otherwise be affected would likely be out and away by the time that that rolls around. It would barely affect them.