$ cat clo.pl
#!/usr/bin/perl -s

use strict;
use warnings;
use vars qw($company $location);

$company ||= 'NO_COMPANY';
$location ||= 'NO_LOCATION';

printf "The %s company is located at $location\n",
       $company, $location;

$ ./clo.pl
The NO_COMPANY company is located at NO_LOCATION

$ ./clo.pl -company='Grant Alpho System'
The Grant Alpho System company is located at NO_LOCATION

$ ./clo.pl -company='Grant Alpho System' -location=TheOtherGlobe
The Grant Alpho System company is located at TheOtherGlobe