End Close

AI powered reconciliation for high-volume payments companies

Y CombinatorWinter 2026ActiveB2BFinance and Accounting

What they do

Problem

High-volume payments companies struggle with manual, error-prone reconciliation and exception handling, risking money loss, compliance issues, and non-audit-ready financials.

Solution

An AI-managed, modern reconciliation system that integrates with existing payment stacks to automate matching and streamline exception resolution.

Who it's for

Fintechs, marketplaces, banks, and payroll companies with high payment volumes and payment operations/finance teams responsible for reconciliation.

Founders

Sean Bolton

Founder

Sean is the co-founder and CEO of End Close. Sean was the third hire at Modern Treasury (S18) where he spent 6 years as the tech lead of payments engineering before building and running the reconciliation org. While there he scaled the product to $350B in annual payments volume and $1T in annual reconciliation volume with 99.995% automation.

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David Newell

Founder

David is the co-founder and CTO of End Close. Before End Close, David was the team lead at PostHog (W20) for the error tracking product which became the fastest growing in the companies history. David previously founded Unflow (S19) and has worked as a product engineer at Intercom and Basecamp.

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