Fundraising Fox

Greg Sirotek

Founder

Founder at Glow Energy

Los Angeles, California, United States

FoundedGlow Energy · YC

About

Greg is co-founder and CEO of OpenCoreEMR, a company formed to commercialize OpenEMR. He previously founded Glow Energy, which was acquired by Ivy Energy in 2024, and co-founded a proptech startup that led to roles at Airbnb including work on host growth and Head of Home Experience for Luxe.

Founder at Glow EnergyYC W22

Intro paths

YC

Greg went through Y Combinator (Winter 2022) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Gustaf Alstromer — the partner who ran Glow Energy's batch and knows the company first-hand. YC profile ↗

In turn, Greg can intro founders to Glow Energy's investors below.

Co-founders at Glow Energy

RGRoss Gruber

Experience

  1. OpenCoreEMRCo-founder and CEOcurrent2025 — presentLos Angeles, California, United States
  2. Ivy EnergySenior Vice President2025Los Angeles, California, United States
  3. Ivy EnergyVP, Corporate Strategy & Development2024 — 2025Los Angeles, California, United States
  4. Glow EnergyCo-founder and CEO2021 — 2024Los Angeles, California, United States
  5. On DeckFellow2020 — 2021
  6. AziboAdvisor2020
  7. AziboHead of Strategy & Operations2019San Francisco Bay Area
  8. AirbnbHead of Home Experience, Airbnb Lux2017 — 2019San Francisco Bay Area
  9. AirbnbManager, Airbnb Plus2017San Francisco
  10. AirbnbSupply Growth Lead2015 — 2017San Francisco Bay Area
  11. RentMethodCEO and Co-Founder2010 — 2015San Francisco
  12. Robert W. Baird & Co.Investment Banking Financial Analyst2008 — 2010San Francisco Bay Area

Skills & more

Financial Modeling22Valuation24HTML2Investment Banking15Financial Analysis12Excel2PowerPoint4Microsoft Excel5Venture Capital4Investments4Finance11Start-ups7
+2 moreDue DiligenceCorporate Finance

From Greg's professional profile.

Frequently asked questions

Who is Greg Sirotek?
Greg is co-founder and CEO of OpenCoreEMR, a company formed to commercialize OpenEMR. He previously founded Glow Energy, which was acquired by Ivy Energy in 2024, and co-founded a proptech startup that led to roles at Airbnb including work on host growth and Head of Home Experience for Luxe.
Where does Greg Sirotek work?
Greg Sirotek is Founder of Glow Energy.
What companies did Greg Sirotek found?
Greg Sirotek founded Glow Energy.
Where did Greg Sirotek go to school?
Greg Sirotek studied at Y Combinator (YC W22); Marquette University (Bachelor of Science (BS), Finance).

Founder mafias

Y Combinator mafia8,773

Also came through, then founded or led a company.

+ 8,766 more

Y Combinator mafia4,716

Also came through, then founded or led a company.

+ 4,709 more

Airbnb mafia65

Also came through, then founded or led a company.

+ 58 more

Marquette University mafia8

Also came through, then founded or led a company.

+ 1 more

Azibo mafia4

Also came through, then founded or led a company.

Same school

Shared employers