TellFi was founded by Jason Corwin, Conor Lee, Zain Memon.

Who are TellFi's investors?

TellFi's investors include Y Combinator, Andreessen Horowitz.

Where is TellFi headquartered?

TellFi is headquartered in San Francisco, US.

TellFi

San Francisco, US · 2 employees · 2 known investors

TellFi provides cloud-based business phone system software with features like extensions, call forwarding, and voicemail, available at low monthly costs. It serves small businesses seeking an affordable alternative to traditional phone system infrastructure.

Enterprise Software Future of Work Messaging EnterpriseUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (W11)

Jason Corwin in 𝕏Founder/CEOJason Corwin is co-founder and CEO of TellFi and previously co-founded Safely Finance (YC S19). He holds a degree from Virginia Tech and has consulting experience with technology and media companies including Apple and Major League Baseball Advanced Media.

Conor Lee inFounderConor Lee is a founder with experience bootstrapping previous ventures. He is currently working on Afters.me.

Zain Memonin 𝕏Founder

Investors · 2

Y CombinatorSan Francisco · $500K

Andreessen HorowitzreportedMenlo Park · $500K – $50M

In the news

Investment List | Andreessen Horowitza16z.com · Jan 2026

TwoSixty launches TellFi, a Google Voice for companies | VentureBeatventurebeat.com · Mar 2011

Frequently asked questions

What does TellFi do?: TellFi provides cloud-based business phone system software with features like extensions, call forwarding, and voicemail, available at low monthly costs. It serves small businesses seeking an affordable alternative to traditional phone system infrastructure.
Who founded TellFi?: TellFi was founded by Jason Corwin, Conor Lee, Zain Memon.
Who are TellFi's investors?: TellFi's investors include Y Combinator, Andreessen Horowitz.
Where is TellFi headquartered?: TellFi is headquartered in San Francisco, US.