Awarding to non 501(c)3s and verifying

Hi there!

I read the other discussion post about awarding to non-501(c)3s but wasn't quite what my team was looking for. We are a pass-through entity that awards federal funds for conservation related projects. As of now, we only do 501(c)(3)s but are looking to expand to other 501(c)s, starting with at least 50(c)(4)s and (5)s, as well as state and local governments.

I would love to connect with anyone on here who is works with federal funds or has experience with federal funds, and funding to non-501(c)(3)s. How do you use the GLM and verify the organization like the Charity Check? Thank you in advance!