Stakeholder
Etymology
Originally the neutral third party who literally held the "stakes" — the money wagered — during a bet, from "stake" (a wager or post driven into the ground) plus "holder." The management sense was popularized by philosopher R. Edward Freeman in his 1984 book, deliberately widening the frame beyond owners. The word now spans everyone with something to gain or lose.
noun · /STAYK-hohl-der/
Anyone with an interest in an organization or project — employees, customers, suppliers, communities — not just its owners.
What it names
It gives you one word for the full circle of people a decision touches, so you can weigh them before acting.
Example
Before rolling out the new schedule, she mapped every stakeholder — nurses, patients, and the billing office all had a say.
Related idea
A shareholder owns a slice of the company and is owed profit; a stakeholder may own nothing yet still bear the consequences. Confusing the two is how firms end up serving quarterly earnings while neglecting the people who keep them alive.