Founder Directory
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Founders4
Known for these resultsRole75%Role is parsed from founder titles in yc.db. Known for 75% of these rows — the rest have no title at all, mostly 2019–2023. Those rows stay in the result and are counted as Unknown, never as No.Bio100%Bio coverage: 100% of these founders have a bio on their YC profile. Every bio-derived facet (ex-company, school, credentials, discipline) is Unknown for the rest.Ex-company75%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 75% of these rows have at least one match.School50%School is matched from bios, case-sensitive for acronyms. 50% of these rows have at least one match.
- Oscar AdamssonFounder/CPO · StiltaW26B2B · Stockholm
- Oskar Block@oskarblockFounder/CEO · StiltaW26B2B · Stockholm
- Petrus WernerFounder/CTO · StiltaW26B2B · Stockholm
- Tobias Estreen@estreenxFounder · StiltaW26B2B · Stockholm
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Oscar AdamssonStiltaFounder/CPOWinter 2026B2BStockholm, Sweden4—Oskar BlockStiltaFounder/CEOWinter 2026B2BStockholm, Sweden4https://x.com/oskarblockPetrus WernerStiltaFounder/CTOWinter 2026B2BStockholm, Sweden4—Tobias EstreenStiltaFounderWinter 2026B2BStockholm, Sweden4https://x.com/estreenx
Showing 1–4 of 4 founders
Tobias Estreen
Founder·Stilta
PRIMARY INFO
RoleFounder· not in title
Team size4
BatchWinter 2026
LocationStockholm, Sweden
Company statusActive
StageEarly
BIO
Tobias is co-founder of Stilta. Previously at QuantumBlack (McKinsey & Company), he led teams developing agentic AI systems for global clients. He is a second-time founder with a background in physics and machine learning from KTH and KU Leuven, bringing deep technical expertise and a track record of building AI systems for complex, high-stakes environments.
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
Credentialsnone mentioned
DisciplineEngineerKeyword match from the bio text, not a classifier.
TRACK RECORD
Serial founder · self-declared
COMPANY CONTEXT
Stilta
Agentic AI for intellectual property
