Are there any startup businesses like the sort of business you would like to run one day? A huge, huge part of success as a developer is learning how to work i

Are there any startup businesses like the sort of business you would like to run one day? A huge, huge part of success as a developer is learning how to work in a team, deal with clients/customers and manage real world problems outside of coding. It's really hard to get experience with this in a classroom or online. Any sort of ad agency or product company will expose you to "soft skill" problems that will be applicable to building software products.