I did not insinuate that all of the "many firms" are national firms, although mine certainly is. I will not be naming and shaming the firm on a public forum, but check your PM.
So which firms? You said “many” firms are doing this, so there shouldn’t be anonymity problems with sharing. Feel free to omit your own firm from the list if that’s a concern.
Naming the firms will really establish whether or not the firms are “national”, which seemed to be what everyone disagrees about.