Xobni

y-combinatorSummer 2006🇺🇸 San Francisco11 people

xobni.com

Acquired

Matt Brezina · 1 founder

2026Acquired

Acquired

Team

current

Co-founders

current

Stage

Acquired

Profile coverage4 of 8 · missing Funding, Signals, Customers, Stack / tools · last run 8/11/2026

About

Xobni makes your inbox and address book smarter. Xobni, and its Smartr product suite, discover all the people you've ever emailed, called or SMS'd, and instantly access a full view of each contact, complete with their photo, job title, company details, email history as well as updates from LinkedIn, Facebook, and Twitter. You can download Smartr for Gmail, Android or iPhone; and Xobni for Outlook and BlackBerry - or connect them all with Xobni Pro.

Founder

Matt Brezina

Founder

Twice-exited founder of Xobni (acq Yahoo) and Sincerely (acq FTD). I've also now invested in over 80 startups including YC successes: Dropbox, Function of Beauty, Snapdocs, Scratchpad, AlphaFlow, Teleport, and more. I've been deeply involved or led 15+ M&A transactions. I've helped many founders sell secondary shares. I'm also deeply passionate about the built human habitat. Specifically the infrastructure to prioritize safe biking & walking over dangerous and polluting automobiles.

in LinkedIn