Corporate Accounting and Payroll Software
- SQL-Ledger (Perl/CGI/RDBMS based double entry accounting system) (ml)
- OSRAIDS ("Online Service Recording, Accounting, Invoicing, and Documenting System". PHP/MySQL/FPDF based system for creating PDF formatted invoices for a service or consulting businesses.) (cvs) (ml) (forum)
- Freeside (Perl/CGI/RDBMS based billing and account administration package for Internet service providers) (cvs) (ml)
- PayThyme (Python/Qt based UK statutory payroll system)