Maybe not even suppliers and just organizations. I once offered tutoring services to someone who was working with the VA to get their degree. Since it was a subject outside of their normal scope and I was not a contractor with the VA I had to fill out paperwork and even then it took a year to get approved and paid for the services. Thankfully I wasn’t doing this for a living but as a favor and the person I was working with was very persistent in following up with his have supervisors otherwise I would given up long before.