Unless businesses are paying for server boosts[0] (which would only be useful for 1080p60 screen-share or a 50mb upload limit), there's no way to use Discord for business or pay extra for business use outside of creating a free server like any other; there's no real reason to choose Discord for business either, since it has no real retention policy (other than storing messages forever, for now), DLP is non-existent, there's no SSO/SAML, etc. The only reason to use Discord for business is if you really like Discord and/or other parts of your business are on Discord, like if you run a video game.

0: https://support.discord.com/hc/en-us/articles/360028038352-S...