Callan JMB (NASDAQ:CJMB) (NASDAQ: CJMB) is a U.S.-based financial technology company specializing in end-to-end payment and merchant services. The firm provides a comprehensive suite of payment processing solutions, including credit and debit card authorization, point-of-sale (POS) terminals, mobile payment integration, and e-commerce gateways. Through its proprietary platform, Callan JMB offers real-time transaction analytics, risk management tools and chargeback mitigation services designed to help businesses optimize revenue flows and reduce operational costs.
Since its founding in 2007 by John D. Callan and Matthew J. Brown, Callan JMB has expanded its footprint beyond its Chicago headquarters. The company now maintains regional offices in Toronto, Mexico City and London, serving a diverse customer base across North America and Europe. Its global reach is supported by partnerships with major card networks, acquiring banks and independent software vendors, enabling seamless cross-border payments and multi-currency settlement.
Callan JMB’s technology roadmap emphasizes cloud-native architectures and open APIs to facilitate rapid integration with third-party platforms and custom in-house software. Recent product enhancements include advanced fraud-detection algorithms powered by machine learning, omnichannel payment orchestration, and embedded financing options for small and medium-sized enterprises. This focus on innovation has positioned the company as a strategic ally for retailers, hospitality operators and online marketplaces looking to modernize their checkout experiences.
Leadership at Callan JMB combines deep industry expertise with a commitment to client service. CEO John D. Callan, who previously held senior roles in global payments at a leading bank, oversees corporate strategy and business development. CFO Mary B. Johnson brings more than two decades of financial management experience in fintech, while CTO Sarah Mitchell heads the engineering teams responsible for platform reliability and security. Under their guidance, Callan JMB continues to invest in research and development to address the evolving needs of the digital economy.
