mariana
PR Director at RingCentral
Mariana Kosturos
socialmedia@ringcentral.com

Mariana Kosturos is the PR Director at RingCentral, a leading enterprise cloud communications provider, where she is responsible for media relations, content development, executive thought leadership, and customer amplification. Prior to RingCentral, she worked at Edmodo, an education technology company based in San Mateo. Previously, Mariana worked at PR agencies based in New York and San Francisco across a wide range of professional services and b2b technology clients.