Jeffrey Byun is Co-Founder and CEO of Akkari, a YC P26-backed AI execution system that autonomously manages customer operations from the first sales call through expansion and success.

Jeffrey holds an MBA from MIT and a bachelor's degree from the University of Pennsylvania, and began his career as a fixed income derivatives trader at Morgan Stanley and BofA Merrill Lynch.

A 2x YC founder (W11 and P26), Jeffrey brings rare cross-disciplinary expertise spanning Wall Street trading, mobile commerce, crypto, and now AI-native B2B operations.

Jeffrey previously co-founded OrderAhead, a mobile ordering platform acquired by Square after scaling to millions of users, and BLADE, a crypto derivatives exchange backed by Coinbase and SV Angel that reached $1.2B+ in monthly trading volume.

Akkari is part of YC's Spring 2026 batch and is building toward becoming the AI execution layer for how companies operate, helping startups follow through on every customer commitment at scale.