oneZero Financial Systems | 6,197 followers on LinkedIn. Trading technology for multi-asset class execution, distribution and analytics | oneZero develops multi-asset class trading technology, which empowers financial institutions and brokers to compete in today’s ever-changing global markets. Our powerful software solutions serve all your trading needs, delivering the highest reliability, scalability and high-performance trading technology. oneZero was founded in 2009 by technology experts Andrew Ralich and Jesse Johnson in Cambridge, MA.