Sales & marketing

Helium

Website
Founded 2024Origin source ↗Checked 2026-09-15

Overview

Helium is building self-improving software — AI that continuously experiments on key moments in the user funnel to boost revenue. Our first customer, a social app with 20M MAU, uses Helium to test new in-app paywalls to get more users to subscribe.

Zach previously made $100M+ in growth experiments at Uber, Shishir led the first LLM features for Alexa, and Anish worked at Meta building ML to automatically experiment on ads, increasing Instagram ads conversion by 10%.

Company description As recorded 2026-11-08

Product & workflow

Helium is building AI to automatically generate and test new software features and experiences, starting with mobile monetization.

Source-reported As recorded 2026-09-30

Founders & team

Previously CloudCaptain

Company history As recorded 2026-11-08

Zach Witzel

Founder/CEO

Made >$100M in growth experiments at Uber. Now building tryhelium.com to personalize upsell flows. We help consumer subscription companies double their conversion.

Founder profile As recorded 2026-09-15
7team members reported
Source-reported As recorded 2026-09-15

Founded 2024 · Source

News & product activity

Sources & observations

Y Combinator

Profile depthenriched profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedSan Francisco, CA, USA
Pricing evidenceA pricing page was detected
Maturity: Not assessed · 4 of 6 areas documented

Source-based assessment · automated evidence rules

The homepage contains prelaunch or closure language; availability needs review.

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationreachable websitedescriptive evidenceclassified market and modelsourced peoplesourced founding yearpricing page observed