About
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.
Founder at ZaplarYC S26
Intro paths
Oscar went through Y Combinator (Summer 2026) — any YC alum in your network can reach them through the YC community.
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 ↗
In turn, Oscar can intro founders to Zaplar's investors below.
Zaplar's investors · 1
Co-founders at Zaplar
Experience
- ZaplarCo-foundercurrent2026 — present
- Wall Street OasisEquity Research2025 — 2026
- JabraB2B Sales and Marketing focus2024Sydney, Australia & Singapore
- Rising Scholars GroupCo-Founder & CEO2023 — 2024
- GN Hearing ANZMarketing and Sales Admin2024Sydney, NSW
Education
- Y CombinatorS26
- Stockholm School of EconomicsBSc in Business and Economics (dropout)2024 — 2026
- The Wharton SchoolWharton summer studies, Statistics2022
Skills & more
Languages English · Swedish
From Oscar's professional profile.
Same school
Also attended Y Combinator1,463
+ 1,457 more
Also attended Stockholm School of Economics182
+ 176 more
Also attended The Wharton School1,366
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+ 1,360 more
