You typically will not have the tip included in what you’re paying directly to the moving company. Most moving companies will let you know exactly what practices that they utilize regarding tips; in some cases, the company may disclose what they pay their movers, and how they do bonuses.
Sometimes, you can choose to put the tip on your credit card as well, but you can’t always guarantee that your individual movers will get what you want them to. More often, it’s best to have cash on hand that you give directly to them.