Apart from Crowdtilt I don't know any other successful startups or major companies that rely on PERL.
At the very least, I know EMC and Qualcomm both rely heavily on Perl internally. At EMC there has been some shift to Python, but Perl is still the clear winner. Startups are more likely to use the new shiny, but Perl is still kicking in the enterprise.
Comments
Apart from Crowdtilt I don't know any other successful startups or major companies that rely on PERL.
At the very least, I know EMC and Qualcomm both rely heavily on Perl internally. At EMC there has been some shift to Python, but Perl is still the clear winner. Startups are more likely to use the new shiny, but Perl is still kicking in the enterprise.