MessageParty
DefunctYC S10New York City, US · 1 employees · 4 known investors
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Also known as 77Mass, Inc.
Founders & leadership· Y Combinator alumni (S10)
JG
Jason GavrisFounderJason Gavris founded 77mass, Inc, which participated in Y Combinator's Summer 2010 batch.
MV
Marcio von Muhlenproduct engineer2010–2010
SA

Sean AhrensFounding Product Engineer2010–2010Founder/Vice President of Product at Crohnology (by Healthy Labs)
Investors · 4
Y Combinatorlisted by Y CombinatorSan Francisco · $500K
How we know: the Y Combinator directory · open dataset · 5k.vc investor directory · Not right? Tell us
Bill Leereported
How we know: Y Combinator's founder network · Not right? Tell us
CRV (Charles River Ventures)reportedBay Area · $250K – $5M
How we know: Y Combinator's founder network · Not right? Tell us
Kindred VenturesreportedSan Francisco · $250K – $2M
How we know: Y Combinator's founder network · Not right? Tell us
Related companies · 3
HereHere offers a digital space where friends can interact through real-time video and voice, enabling activities like watching, gaming, decorating, and drawing together regardless of distance.
OpenlandOpenland is a messaging platform that enables users to create and manage chat-based communities focused on connecting people through shared interests and facilitating discussion.
PraxosPraxos is an AI assistant that automates personal and business tasks through conversational interfaces and integrations with third-party services. It handles diverse workflows including financial forecasting, contract review, CRM management, community moderation, and daily personal tasks like home organization and meal planning.
Companies working in the same space as MessageParty.
Legal entities · 1
corporate structure77Mass, Inc.
In the news
Frequently asked questions
- Who founded MessageParty?
- MessageParty was founded by Jason Gavris, Amanda Peyton.
- Who are MessageParty's investors?
- MessageParty's investors include Y Combinator, Bill Lee, CRV (Charles River Ventures), Kindred Ventures.
- Where is MessageParty headquartered?
- MessageParty is headquartered in New York City, US.






