About
Harry Grewal has worked across security, construction, and real estate operations for over a decade. He previously founded DefenseTek Security, a firm that served major retail clients, and currently leads WeReno, an AI-powered platform for property owners, alongside BuiltOS, software for building operations and management.
Founder at WeRenoYC W22
Intro paths
Harry went through Y Combinator (Winter 2022) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Brad Flora, Backing expeditions into the future — the partner who ran WeReno's batch and knows the company first-hand. YC profile ↗
In turn, Harry can intro founders to WeReno's investors below.
Experience
- BuiltOSFounder & CEOcurrent2026 — presentSan Francisco Bay Area
- WeReno (YC W22)Founder & Co-CEOcurrent2022 — presentSan Francisco Bay Area
- DefenseTek SecurityFounder & CEO2011 — 2021Toronto, ON
Skills & more
From Harry's professional profile.
Frequently asked questions
- Who is Harry Grewal?
- Harry Grewal has worked across security, construction, and real estate operations for over a decade. He previously founded DefenseTek Security, a firm that served major retail clients, and currently leads WeReno, an AI-powered platform for property owners, alongside BuiltOS, software for building operations and management.
- Where does Harry Grewal work?
- Harry Grewal is Founder of WeReno.
- What companies did Harry Grewal found?
- Harry Grewal founded WeReno.
- Where did Harry Grewal go to school?
- Harry Grewal studied at York University (Computer Science).
Founder mafias
Y Combinator mafia8,773
Also came through, then founded or led a company.
+ 8,766 more
York University mafia11
Also came through, then founded or led a company.
+ 4 more
Same school
Also attended York University58
+ 52 more