If there is need of more capital, you either keep your share without the capital injection and the share goes to zero or you let in more investors, dilute your

If there is need of more capital, you either keep your share without the capital injection and the share goes to zero or you let in more investors, dilute your share, but its overall value increases. Or you can let in more people and sign an agreement that part of the new money will be paid to you in the form of services that you provide.