Here are some points which come to mind:
– Little about the company and why the rfp is needed
– What you are looking to accomplish and why
– Relevant details on your infrastructure/ network topography
– Tech stack(s)
– Timeline of when you need response (Q&A, Due date, initial feedback, orals, etc)
– In and Out of scope activities
– Expectation on what areas response is to cover
– Restrictions on using 3d or non-us parties
– Time and material or fixed bid pricing etc
– Expected period of performance and any restrictions
– POC who needs to receive, submission URL/ email, and acceptable formats
– Legal boilerplate statement
– A RFP soliciting for $1M contract might be 20-27 pages total.
– A RFP for simple software where the cost will be <$200k might be only 12 pages.