Hypercubic

AI to maintain and modernize COBOL.

Y CombinatorFall 2025ActiveB2B

What they do

Problem

Enterprises rely on mission-critical legacy mainframe/COBOL systems that are difficult to understand, maintain, and modernize as expertise disappears.

Solution

An AI-native infrastructure that analyzes, reasons about, and helps maintain and modernize COBOL/mainframe applications.

Who it's for

Large enterprises (e.g., Fortune 500) operating mainframe-based legacy systems in industries like banking, insurance, telecom, airlines, and retail.

Founders

Sai Gurrapu

Founder

Co-Founder/CEO @ Hypercubic | ex-Apple MLE | Z Fellow | 18x Hackathon Winner - Previously worked on multi-modal ML algorithms for the iPhone hardware at Apple, shipped work on 200M+ devices. - Serial hacker and builder (18x hackathon winner, Stanford TreeHacks 3x (all grand prizes), PennApps 2x, HackUVA 2x, HackMIT, HackPrinceton and more) - Published NLP research at IEEE and AAAI. - Bootstrapped a SWE interview preparation platform and scaled it to a 6 figure ARR business.