Sojern

Leading vertical-specific travel marketing platform and DSP, serving thousands of travel brands globally with proprietary traveler intent data

Sojern is a digital marketing and advertising technology company purpose-built for the travel industry. Founded in 2007 and headquartered in San Francisco, California, Sojern leverages billions of traveler intent signals — including flight searches, hotel lookups, and destination queries — to power highly targeted advertising campaigns across display, social, video, and connected TV channels. The platform serves a broad range of travel verticals including hotels, airlines, vacation rentals, destinations, attractions, and car rentals, helping them reach in-market travelers at the right moment in their booking journey. Sojern's core platform combines a proprietary data asset built from real-time travel intent data with machine learning and programmatic advertising capabilities. Its Travel Marketing Platform enables clients to run multi-channel campaigns, optimize for direct bookings, and measure performance with travel-specific attribution. The company also offers solutions for destination marketing organizations (DMOs) and has expanded into hotel technology through integrations with property management systems and metasearch channels. In the AdTech ecosystem, Sojern occupies a distinctive niche as a vertical-specific demand-side platform (DSP) and managed services provider focused exclusively on travel. This specialization gives it a competitive edge over general-purpose DSPs, as its data assets and optimization algorithms are tuned specifically for travel purchase cycles. The company has raised significant venture funding and serves thousands of travel brands globally, with offices across North America, Europe, and Asia-Pacific.