Arjun Dev Arora

Arjun Dev Arora is best known as the co-founder and CEO of ReTargeter, a pioneering retargeting and audience targeting platform that helped bring cookie-based retargeting technology to a broader market of advertisers beyond large enterprise brands. Founded around 2010, ReTargeter was among the early companies to offer self-serve and managed retargeting solutions, enabling mid-market businesses to re-engage website visitors through display advertising — a capability that was previously accessible only to large-budget advertisers working directly with ad networks. Arora built ReTargeter during a formative period in programmatic advertising, when real-time bidding infrastructure was maturing and audience segmentation was becoming a central pillar of digital marketing strategy. Under his leadership, ReTargeter grew into a recognized brand in the retargeting space, competing alongside players like AdRoll and Criteo while carving out a niche focused on service and accessibility. His work helped educate the market on retargeting best practices and audience-based buying at a time when these concepts were still novel to many advertisers. Beyond ReTargeter, Arora has been active in the broader startup and entrepreneurship community in San Francisco, participating in mentorship and advisory capacities. He has spoken publicly on topics related to digital advertising, startup growth, and performance marketing, contributing to industry education during a critical era of AdTech expansion.

• University of California, Berkeley (reported affiliation)

• Co-founded ReTargeter, one of the early self-serve retargeting platforms serving mid-market advertisers
• Grew ReTargeter into a recognized brand competing in the retargeting space alongside AdRoll and Criteo
• Helped educate the market on audience-based retargeting during the formative years of programmatic advertising