Hope you won’t consider this spam, but … you might be interested in this tool I made for finding …
Simon Gardner

Hello Simon. Thank you for taking the time to respond and no, I don’t think that’s spam at all! On the contrary, I think it’s enlightening and not something I’ve seen before — so thanks for sharing it (and sorry for taking so long to respond).
What’s particularly interesting is that in the brief time I’ve looked at the agencies in my area, I’ve found a dozen I didn’t previously know of!