Oscar Karlstromer is the founder of Zaplar. He previously attended the Stockholm School of Economics (making the Honors List before dropping out), founded a Nordic non-profit for middle school academic competitions that reached 40,000 students with a 13-person team, and worked in APAC B2B sales handling accounts over $1M AUD across Sydney and Singapore.
Intro paths
YC
Oscar went through Y Combinator (Summer 2026) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Jared Friedman, General Partner at Y Combinator — the partner who ran Zaplar's batch and knows the company first-hand. YC profile ↗
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In turn, Oscar can intro founders to Zaplar's investors below.
Zaplar's investors · 1
Co-founders
Axel Andersson Lingbert· FounderJon Milles· FounderDouglas Solberg· Founder