3x founder

Greg Sirotek

Working on something new in healthcare | Exited YC Founder | ex-Airbnb

Co-founder

Glow Energy· Winter 2022 🇺🇸 Los Angeles, California, United States

in LinkedIn 𝕏 @gregsirotek

2025Co-founder· OpenCoreEMR

Founder · since 2010

Company

OpenCoreEMR

Role

Co-founder and CEO

current

Stage

—

no public source

Raised

—

no public source

Based

Los Angeles, California, United States

current

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

Source: LinkedIn work history

Profile coverage5 of 7 · missing posts, contact

Glow Energy

Unlocking Virtual Power Plants for rental properties

Winter 2022

Experience

Career

OpenCoreEMR
Co-founder
Co-founder and CEO · Los Angeles, California, United States · 2025 – Present
2025
Ivy Energy
Senior Vice President · Los Angeles, California, United States · 2025
2025
Ivy Energy
VP, Corporate Strategy & Development · Los Angeles, California, United States · 2024 – 2025
2024
Glow Energy
Co-founder
Co-founder and CEO · Los Angeles, California, United States · 2021 – 2024
2021
On Deck
Fellow · 2020 – 2021
2020
Azibo
Advisor · 2020
2020
Azibo
Head of Strategy & Operations · San Francisco Bay Area · 2019
2019
Airbnb
Head of Home Experience, Airbnb Lux · San Francisco Bay Area · 2017 – 2019
2017
Airbnb
Manager, Airbnb Plus · San Francisco · 2017
2017
Airbnb
Supply Growth Lead · San Francisco Bay Area · 2015 – 2017
2015
RentMethod
Co-founder
CEO and Co-Founder · San Francisco · 2010 – 2015
2010
Robert W. Baird & Co.
Investment Banking Financial Analyst · San Francisco Bay Area · 2008 – 2010
2008

Bio

Greg is the co-founder and CEO of OpenCoreEMR, launched in June 2025 with Open Core Ventures to commercialize OpenEMR, the world’s most widely used open-source electronic health records platform. Previously, he was co-founder and CEO of Glow Energy, acquired by Ivy Energy in 2024. Earlier, Greg co-founded a proptech startup that led to his role at Airbnb, where he helped reaccelerate host growth and later served as Head of Home Experience, Luxe.