Celtic Bank Selects Jack Henry to Support Business Banking and Fintech Tech Stack – PR Newswire Posted on September 8, 2026 By Malcolm Knoll No Comments on Celtic Bank Selects Jack Henry to Support Business Banking and Fintech Tech Stack – PR Newswire Celtic Bank Selects Jack Henry to Support Business Banking and Fintech Tech Stack PR Newswire Celtic Bank has chosen Jack Henry as its technology partner, marking a significant step forward in modernizing its business banking and fintech tech stack. Business