4x founder

Stefan Kalb

Founder & Investor

Co-founder

Shelf Engine· Summer 2018🇺🇸 Seattle, Washington, United States

in LinkedIn

2025Co-founder· Latch

Founder · since 2009

Company

Latch

Role

Co-Founder

current

Stage

—

no public source

Raised

—

no public source

Based

Seattle, Washington, United States

current

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

Source: LinkedIn work history

Profile coverage5 of 7 · missing posts, contact

Shelf Engine

Transforms how grocery stores buy highly perishable foods.

Summer 2018

Experience

Career

Latch
Co-founder
Co-Founder · Seattle, Washington, United States · 2025 – Present
2025
Massive Tech Ventures
Founder
Managing Partner · Seattle, Washington, United States · 2024 – Present
2024
Shelf Engine
Co-founder
Co-Founder & CEO · Seattle WA · 2016 – 2025
2016
Molly's Salads
Founder
Founder & CEO · 2009 – 2016
2009
NewEarth Renewable Energy Inc.
Vice President of Business Development · 2008
2008
Associated Students
Vice President for Business and Operations · 2006 – 2007
2006
Safeco
Actuarial Intern · 2005
2005

Bio

YC alum (S18). My last company, Shelf Engine, scaled to 10,000+ grocery locations, raised $70M+, and exited in 2024. Now building Super Labs - AI that understands really complex work. Also co-founder of Massive Tech Ventures, writing $500k checks to back YC founders. Happy to help with enterprise sales, fundraising, or anything to help the best founders.