John Banner
FounderFounder & CEO at AgentCollect
San Francisco, California, United States
FoundedAgentCollect · YC
About
John Banner previously founded Respaid, an AI-powered accounts receivable platform addressing unpaid invoices, and studied engineering at École Centrale Électronique and business at Harvard Business School. He also serves as a commander in the French Republican Guard.
John Banner @johnbanr
Every AI vendor I talk to has the same problem. Their customer buys the tool. Gets excited. Then the CFO sees the first invoice and nobody can explain the bill. Charged for calls, emails, tokens, actions you didn't even know were happening. The team gets scared and stops using
Aug 2, 2026 · ♥ 2
John Banner @johnbanr
Nobody should build an agent. I run an AI agent company and I'm telling you this anyway. Series B+ and enterprise companies don't need to build agents. They need invoices collected and DSO down, and they don't care how it happens. Here's what a CFO does with AgentCollect: →
Jul 31, 2026 · ♥ 3
John Banner @johnbanr
Should I hire him? 🤔 https://t.co/RzyE4omjKm
Jul 14, 2026 · ♥ 4
Founder & CEO at AgentCollectYC S23
Intro paths
John went through Y Combinator (Summer 2023) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Garry Tan, President & CEO of Y Combinator — the partner who ran AgentCollect's batch and knows the company first-hand. YC profile ↗
In turn, John can intro founders to AgentCollect's investors below.
AgentCollect's investors · 1
Experience
- AgentCollect (YC S23)Founder & CEOcurrent2023 — presentSan Francisco, CA
- AgentCollect (YC S23)Founder & CEOcurrent2020 — present
- Gendarmerie NationaleCommandant (RC) - Republican Guardcurrent2018 — presentVille de Paris, Île-de-France, France
- Ritz ParisPianist / Composer2012 — 2014Paris
Education
- Y CombinatorBatch S232023
- Harvard Business SchoolExecutive Certificate, Disruptive Strategy2021
- ECE. Ecole d'ingénieurs. Engineering School.Master of Engineering - MEng, Several & Hi-Tech Engineer2011 — 2014
- UC IrvineBachelor's degree, Business Administration and Management2013
- Concordia UniversityCertificate, Computer Science and Signal Processing2012
- University of Telecommunications and Networks Engineering, ColmarMaster's degree, Computer Systems Networking and Telecommunications2009 — 2011
Skills & more
+12 more
Business StrategyMobile DevicesSearch Engine Optimization (SEO)Keyword AdvertisingApple SoftwareGraphic DesignMobile Web DesignMobile Interface DesignMobile TechnologySales ManagementFundraisingLobbyingLanguages English · French
- Jodi Glickman on Pitching Yourself — LinkedIn
From John's professional profile.
Same school
Also attended Y Combinator1,464
+ 1,458 more
Also attended ECE. Ecole d'ingénieurs. Engineering School.5
Also attended UC Irvine83
+ 77 more
Also attended Concordia University91
+ 85 more
