Oren Harnevo

Operator

Oren Harnevo is CEO and Co-Founder of HelloCity.

Last updated Sep 27, 2026 by the ATDb Editorial Team

Role

CEO and Co-Founder

Company

HelloCity

Based

New York, New York, United States

Years in industry: 18 years

Expertise & education

Expertise

Order Management Systems (OMS)Direct Ad Sales PlatformsAd OperationsPublisher TechnologyAd DeliveryCreative Asset ManagementMedia Workflow AutomationDirect Deal Infrastructure

Speaking topics

Modernizing direct ad sales and order managementPublisher-side ad operations and workflow automationThe future of direct deals in a programmatic-first worldBuilding AdTech infrastructure companies

Recognition

Notable achievements

Founded Placements.io to modernize legacy order management systems for premium publishers and media companies
Built multiple venture-backed AdTech companies addressing operational gaps in the advertising supply chain