In the UK OSCP can be used for CRT equivalency and I know that many/most pentesting companies care about CRT/CCT qualifications in the UK, if only because they're a requirement for doing work for some government departments, and also some financial services companies will use CREST certification as a check for testers doing work for them.

So in that sense, they do care about OSCP.

> Name a pentesting firm that cares about the OSCP.

Here: https://rhinosecuritylabs.com/company/ lists OCSP and CISSP and a bunch of other certs. So I guess they care about that.

Now, how about you name the pentesting firm that does not list any certs.

The pentesting team at SEI-CERT cares about it.