Bjorn Karlstrom

Bjorn Karlstrom is best known as the co-founder and CEO of Preciso, a demand-side platform and programmatic advertising company headquartered in São Paulo and Lisbon. Preciso was built with a deliberate focus on markets that global AdTech players have historically underserved — specifically Latin America and the Iberian Peninsula — offering mid-market advertisers self-serve access to programmatic buying with localized contextual and audience targeting capabilities tailored for Portuguese-language environments. The company operates its own bidder infrastructure, a meaningful technical differentiator that gives Preciso greater control over performance, latency, and data handling in its target geographies. Karlstrom's career reflects a pattern of identifying programmatic infrastructure gaps in emerging and regional markets and building practical, scalable solutions to address them. His work at Preciso represents a broader thesis that programmatic advertising's next growth phase will come not from the saturated US and Western European markets, but from regions where local expertise, language capabilities, and regulatory familiarity create defensible competitive advantages. By combining a Lisbon base with São Paulo operations, Preciso bridges the Lusophone digital advertising ecosystem in a way few competitors have attempted. While Karlstrom maintains a relatively low public profile compared to AdTech executives in larger markets, his operational focus on building bidder technology and localized targeting for underrepresented markets positions him as a notable figure in the emerging-market programmatic space. His work speaks to the growing recognition that global AdTech infrastructure must be adapted — not simply exported — to serve diverse linguistic and cultural markets effectively.

Last updated Jul 10, 2026 by ATDb automated enrichment · Connections updated Jul 13, 2026