Accounting system for smaller companies written in GnuCobol.
Open source ERP and CRM web software for business
Accounts35.zip is a MS Excel VBA Software of Financial Accounting
Free Invoice & Billing Software for Windows, Linux & Mac
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Accounting & Best Practice Business Administration System
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BestBooks Accounting Application Framework (BAAF)
Desktop and mobile solution for invoicing
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A full ERP system - moved to GitHub. See full description for details.
JEE based Accounting web-application.
Expense reporting system for business
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Baraza Business Management System, a product of Openbaraza
Mutasyon is a script can add customer, products, inventory or invoice
jBilling is a web-based enterprise billing system.
Java Simplified Accounting Management System
Web Based Multilingual Accounting Application