If you're looking for synonyms for the phrase "give one business", there are plenty of phrases that convey a similar meaning. For example, you could say "provide one's services," "offer one's expertise," or "extend a helping hand." Other options might include "render assistance," "contribute support," or "furnish aid." Essentially, any phrase that implies offering help or assistance in a professional or business context could be considered a synonym for "give one business." Ultimately, the choice of phrasing will depend on the specific context and tone of the situation, as well as the speaker's personal style and preferences.