Chromis POS, the new evolving face for your point of sale needs
Free POS Software
Cross-plattform java invoicing and accounting application
Algorithmic trading and quantitative trading open source platform
FIDO strong authentication, encryption, digital signature engine
OTC Trading Network
JavaPOS implementation and more, for Brazilian Retail applications
accounting software
FIX protocol administration tool
The open source Algorithmic Trading System
.NET project for financial messages interchange supporting ISO 8583
Free web-based invoicing primarily for Finnish companies
Free and simple electronic spreadsheet