Mahyar Raissi

Co-Founder and CEO at Quo (formerly OpenPhone)

Quo Quo (formerly OpenPhone) - September 2025 - A new chapter begins

September 23, 2025

OpenPhone is now Quo

The application that got Quo (formerly OpenPhone) into Y Combinator

Behind the scenes, Inside Quo, Startup

August 13, 2024

The story of Quo (OpenPhone) and its Y Combinator application

Company news, Inside Quo

April 7, 2022

How Quo raised $40M to reinvent communication

OpenPhone – 2020 in Review

Company news, Inside Quo

January 1, 2021

OpenPhone – 2020 in Review

OpenPhone raises Series A

Company news, Inside Quo

November 17, 2020

We’ve raised $14m to bring the best business phone app to the masses

OpenPhone seed round announcement

Company news, Inside Quo

January 29, 2020

We’ve raised a $2M series seed to build the phone for startups

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