AI-powered reconciliation for high-volume payments companies
HQ: San Francisco, CA | Founded: 2026 | Employees: 2 | Stage: Pre-Seed | Website: https://endclose.com
End Close is an automatic reconciliation platform for high-volume payments companies. The platform continuously matches transactions across payment processors, bank accounts, and accounting systems. When exceptions occur, AI agents automatically investigate by pulling context from connected systems, identifying root causes, and resolving issues without human intervention. Designed for fintechs, marketplaces, banks, and payroll companies. Provides developer-friendly APIs for real-time reconciliation, enabling product features like instant balance top-ups and faster trading. Founded in 2026 by Sean Bolton (CEO) and David Newell (CTO). Bolton was the 3rd hire at Modern Treasury (YC S18), spending 6 years building the reconciliation org, scaling to $350B in annual payments volume and $1T in annual reconciliation volume with 99.995% automation. He built high-volume ACH and Wire origination systems and created the open-source LedgerSync library. Newell is a 2nd-time YC founder (Unflow, S19). He led the error tracking team at PostHog (W20), launching and growing the product to thousands of customers in 6 months (fastest growing in company history). He previously worked as a product engineer at Intercom and Basecamp. Both studied Electronic & Computer Engineering together in Ireland. YC Winter 2026 batch. Raised $500K from Y Combinator. 2 employees. HQ in San Francisco, CA.
End Close has exceptional founder-market fit: Sean built exactly this at Modern Treasury for 6 years, processing $1T with 99.995% automation. The AI agents for exception handling address the 99% of manual reconciliation work. David brings strong engineering and YC experience from PostHog. The continuous (not just month-end) reconciliation with developer-friendly APIs is a real differentiator. Key risk: very early stage with only $500K funding; competing with in-house builds at payments companies and legacy providers.
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