Atrium
DefunctYC W18San Francisco, US · 180 employees · 2 known investors
Find your way into Atrium
748 people in our graph share verified history with the Atrium team — schools, employers, funds. One of them is your warm intro.
Aftab Mathurunlockedknows Justin Kan · together at Yale University (overlapped)
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×6knows the team · via Y Combinator
×3knows the team · via Yale University
knows the team · via Atrium
knows the team · via Twitch
Atrium provides legal services to startups through a technology-enabled platform that replaces traditional hourly billing with performance-based compensation and software tools designed to increase operational transparency and efficiency.
Founders & leadership· Y Combinator alumni (W18)
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Justin Kanin𝕏Founder/CEOJustin Kan founded Twitch and Justin.tv, and later co-founded Atrium, a legal services platform for startups. He has experience as a startup founder and investor.
Investors · 2
In the news
Government sells idle Atrium property in Makati for P1 billion | Philstar.comphilstar.com · Jul 2026
Dutch Construction Robotics Maker Monumental Raises $32M in Series B Fundingtheaiinsider.tech · Jul 2026Frequently asked questions
- What does Atrium do?
- Atrium provides legal services to startups through a technology-enabled platform that replaces traditional hourly billing with performance-based compensation and software tools designed to increase operational transparency and efficiency.
- Who founded Atrium?
- Atrium was founded by Justin Kan.
- Who are Atrium's investors?
- Atrium's investors include Y Combinator, Andreessen Horowitz.
- Where is Atrium headquartered?
- Atrium is headquartered in San Francisco, US.