python at least has something. I cannot find any equivalent for Perl.

LOL

from memory (the other day ) Builtinperl: A showcase of Perl-based startups & the cool stuff they build.

The searching businesses using perl -> Los Angeles Companies using Perl
-> Who uses Perl?

Financial Services

• Australian Innovative Services
• Australian Securities Exchange (ASX)
• Bendigo Bank
• Credit Suisse First Boston
• Citigroup
• eStats Capital
• Financial Network Services
• Ingersoll-Rand
• Insurance Australia Group (IAG)
• JPMorgan
• Macquarie Bank of Australia
• Morgan Stanley
• National Bank of Australia
• Newcastle Permanent Building Society
• Pitcher Partners
• SIRCA
• UBS
• Zurich Financial Services

The O'Reilly list was great 10 years ago, but now looks more like evidence Perl has fallen into disuse.

I would contact the perlfoundation.org, compiling a list of verifiable whositswhatsits sounds right up their alley ... maybe :)