Even in small companies, the math above can be relevant.
The probability of a meeting with one participant is 1/1, or 100%. You can always schedule a meeting with yourself. Obviously.
Two participants are four times as hard. The meeting is 4x less likely to occur in the designated timeframe.
Three participants? Harder than two. Four participants? exponentially harder.
OK, I made this math up to prove a point. It’s far from quantitative, but it’s directionally correct. Figure out who really needs to be there. Invite only those people. If the decisions made impact a team, send a representative to report back – not the whole team.
There are exceptions for brainstorming, inform-the-team meetings, and other reasons. But fewer meetings = more time working, less time rescheduling.