Productivity

Foster

Website
Founded 2020Origin source ↗Checked 2026-09-15

Overview

Community-powered writing workflow driven by some of the internet's best writers, editors, and experts.

Company description As recorded 2026-11-08

Founders & team

Previously Compound Writing

Company history As recorded 2026-11-08

Stew Fortier

Founder

Co-founder & CEO at Type.ai (W23). Previously co-founded Foster (W21). Before that, I served as the CTO of Banzai and an EIR at the Allen Institute for Artificial Intelligence.

Founder profile As recorded 2026-09-15

Dan Hunt

Founder

Entrepreneur focused on community-powered products. Believe in a future built by tightly aligned, tech-enabled tribes. Founded the world's largest cannabis community, MassRoots, and helped change marijuana policies in multiple states and Fortune 500s like Apple. Curated a community of NYC fitness enthusiasts for RCVR, a DTC brand in the athletic recovery space. Now building Compound Writing, a community-powered writing workflow.

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

Founded 2020 · Source

News & product activity

Sources & observations

Y Combinator

Profile depthverified profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedNew York City, NY, USA; New York, NY, USA; Remote
Pricing evidenceNo pricing page confirmed
Maturity: Not assessed · 3 of 6 areas documented

Source-based assessment · automated evidence rules

The retained text does not establish product availability or customer use.

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 year