2x founder

Haithem Kchaou

Callab AI | YC P26

Co-founder

Callab AI· Spring 2026 🇺🇸 San Francisco, California, United States

in LinkedIn 𝕏 @haithemkchaou

2025Co-founder· Callab AI (YC P26)

Founder · since 2022

Company

Callab AI (YC P26)

Role

Co-Founder & CEO

current

Stage

—

no public source

Raised

—

no public source

Based

—

Founder / co-founder — the company's markEmployee / research role

Source: LinkedIn work history

Profile coverage5 of 7 · missing posts, contact

Callab AI

AI voice agents for on-prem telephony stack.

Spring 2026

Experience

Career

Callab AI (YC P26)
Co-founder
Co-Founder & CEO · 2025 – Present
2025
Clusterlab
Co-founder
Co-Founder & CEO · 2022 – Present
2022
Mobioos
Product manager · Paris Area, France · 2017
2017
CHIFCO
Business analyst Intern · Tunisie · 2016
2016
Great Plains Manufacturing, Inc.
Marketing Intern · États-Unis · 2015
2015

Bio

Second-time founder; scaled a mobile app to 200K+ downloads. Led a sovereign national AI initiative that provided free LLM access to over 300,000 students. Co-published 2 research papers on LLM fine-tuning and data collection. Thomas Jefferson Scholar (top 2% of applicants).