CSI is an American provider of end-to-end financial software and technology solutions, serving banks and credit unions across the United States. Founded in 1965 with three customers and six employees, the company has grown into one of the largest fintech and regtech providers in the country, counting thousands of banks and credit unions among its clients and concentrating on community and regional institutions.
Its flagship product, NuPoint, is the second most-used core banking platform in the United States and powers daily operations for more than 10% of American banks. Around this core, CSI offers an integrated suite spanning digital banking platforms, payment processing, loan origination, managed cybersecurity and regulatory compliance solutions. For engineers, the technical footprint includes core banking software, open banking initiatives, developer APIs and AI-powered analytics.
The company describes its culture as innovation-driven and customer-centric, positioning itself as a long-term technology partner that combines scalable solutions with personal service. Its engineering work sits at the intersection of regulated financial infrastructure and emerging technologies such as open banking and applied AI.
