Cobblestone
AcquiredYC W23New York City, US · Founded 2023 · 3 employees · 2 known investors
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690 people in our graph share verified history with the Cobblestone team — schools, employers, funds. One of them is your warm intro.
Alex Tranunlockedknows Jack Mastrangelo · together at Ramp (overlapped)
knows the team · via Facebook
×3knows the team · via Robinhood
×3knows the team · via Ramp
knows the team · via Crosby
×2knows the team · via Menlo School
Software that helps institutional landlords identify fraudulent tenants and reduce payment delinquency through automation.
Also known as AppDoma
Founders & leadership· Y Combinator alumni (W23)
Cobblestone was founded in 2023 by Jack Mastrangelo and Jason Scharff.
JM

Jack MastrangeloinCo-Founder, CTO (YC W23, Acquired by 100)2023–2025Jack Mastrangelo is a cofounder of Cobblestone who previously worked as a software engineer at Ramp and Facebook.
JS

Jason ScharffinCo-Founder, CEO (acquired by 100)2023–2025He previously held engineering roles at Ramp and Robinhood.
Investors · 2
Competitors · 1
by search overlapCompanies competing with Cobblestone for the same Google search keywords, organic and paid, via search-intersection analysis.
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Frequently asked questions
- What does Cobblestone do?
- Software that helps institutional landlords identify fraudulent tenants and reduce payment delinquency through automation.
- Who founded Cobblestone?
- Cobblestone was founded by Jack Mastrangelo, Jason Scharff in 2023.
- Who are Cobblestone's investors?
- Cobblestone's investors include Y Combinator, Zigg Capital.
- Where is Cobblestone headquartered?
- Cobblestone is headquartered in New York City, US.



