Also, putty is available in EPEL for the CentOS crowd.

    # cat /etc/redhat-release 
    Red Hat Enterprise Linux Server release 7.9 (Maipo)

    # pscp
    PuTTY Secure Copy client
    Release 0.73
    ...
      -sftp     force use of SFTP protocol
      -scp      force use of SCP protocol

It looks like it has a LOT less library dependencies than scp:

    $ ldd /bin/pscp
    linux-vdso.so.1 =>  (0x00007ffd79be1000)
    libdl.so.2 => /lib64/libdl.so.2 (0x00007f04c91bf000)
    libc.so.6 => /lib64/libc.so.6 (0x00007f04c8df1000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f04c93c3000)

    $ ldd /bin/scp | wc -l
    31