We created a multi-tenant SaaS platform to create content and configure individual mobile apps. In other words, we build apps for customers and we take care of deploying and maintaining these apps on their developer accounts, given that they are comfortable with giving us access to it. But in some cases, especially with government or military customers, they cannot add us to their developer accounts, and/or they cannot send us their signing certificates so we can sign the builds with them. Does Apple have any alternative ways to deploy an app that WE OWN the code to, sign it, and ship it onto a client's developer account so that the app become publicly accessible on the app store? To my knowledge, the only way currently is through Apple Business Managed accounts and/or MDM, which is would NOT make the app publicly available on the app store.