One of those groups is Global Cyber Allience (GCA):

"GCA, a 501(c)3, was founded in September 2015 by the Manhattan District Attorney’s Office, the City of London Police and the Center for Internet Security."

https://www.cityoflondon.police.uk/advice-and-support/cyberc...

Quad9 was founded by IBM, PCH (Packet Clearing House - they operate a lot of smaller countries' authoritative dns), and GCA (Global Cyber Alliance), but it's a standalone Non-Profit. https://quad9.net/about/

I prefer to use them over Google and Cloudflare since their whole non-profit mission is DNS.

They also offer a 9.9.9.10 service if you don't want the "Security block list" (I don't like blacklists I don't control).