About
Leon Iwanowitsch studied at the University of St. Gallen and organized a large early-stage startup conference in Europe. He has experience in fundraising, angel investing, and AI consulting for enterprise clients.
Founder at OntoraYC X26
Intro paths
YC
Leon went through Y Combinator (Spring 2026) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Tom Blomfield, Monzo and GoCardless co-founder; Y Combinator partner on leave and Anthropic compute-team member. — the partner who ran Ontora's batch and knows the company first-hand. YC profile ↗
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In turn, Leon can intro founders to Ontora's investors below.
Ontora's investors · 1
Co-founders at Ontora
MA
Maximilian ArnoldFounder
DK
David KornFounder
Experience
- Ontora (YC P26)Co-Foundercurrent2026 — presentSan Francisco, California, United States
- KI group HQFounder's Associate2025 — 2026Munich, Bavaria, Germany
- Robin CapitalFounder's Associate2024 — 2025Berlin, Germany
- Founderful CampusVenture Scout2023 — 2024St Gallen, Switzerland
- START GlobalHead of Investor Partnerships2023 — 2024St Gallen, Switzerland
- Various CompaniesVarious Positions2017 — 2023Switzerland, Germany, Luxembourg
- Deutscher BundestagIntern of Minister of Economic Affairs & Energy / Deputy German Parliament2017Berlin, Bundestag
Skills & more
Venture Capital2Private Equity2Business Strategy1EntrepreneurshipArtificial Intelligence (AI)BlockchainGestion des opérationsVenteMarketingWorking AbroadProject Work1Corporate Governance
+12 more
ConsultationMicrosoft PowerPointMicrosoft WordMicrosoft ExcelMicrosoft OfficeCommunicationFinanceRésolution de problèmesLaTeXAuditStart-upLeadershipLanguages English · French · German
- Introduction into Strategy — University of St.Gallen
- Data Science - Python — TechAcademy e.V.
- Advanced Web Development - JavaScript — TechAcademy e.V.
From Leon's professional profile.
Frequently asked questions
- Who is Leon Iwanowitsch?
- Leon Iwanowitsch studied at the University of St. Gallen and organized a large early-stage startup conference in Europe. He has experience in fundraising, angel investing, and AI consulting for enterprise clients.
- Where does Leon Iwanowitsch work?
- Leon Iwanowitsch is Founder of Ontora.
- What companies did Leon Iwanowitsch found?
- Leon Iwanowitsch founded Ontora.
- Where did Leon Iwanowitsch go to school?
- Leon Iwanowitsch studied at Y Combinator (Spring Batch 26); University of St.Gallen (Master of Arts - MA, Business Innovation); ESSEC Business School (Grande École - Master in Management (Exchange)).
Founder mafias
Y Combinator mafia8,773
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Sam AltmanPresidentFounded Tools for Humanity +3Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianYC Summer 2005Founded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded Pursuit +1
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Y Combinator mafia4,716
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University of St.Gallen mafia32
Also came through, then founded or led a company.
Manar AlkassarMaster's programFounded Helpling +2Adrian LocherBachelor of Arts (B.A.)Founded Merantix +1Sahar SaidiGlobal Executive Master of Business Administration (GEMBA)Founded LUS Brands +1Jonas MorgnerM.Sc.Founded TradeLink +1Dominik MatykaDoctor of Philosophy (Ph.D.)Founded NAPChristophe MaireFounded FoodLabs
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ESSEC Business School mafia25
Also came through, then founded or led a company.
Quentin GazayGrande Ecole - Master in Management (MiM)Founded SpacefillOlivier LaplaceAdvanced Master Degree (Hons)Founded Founders PledgeBruno RaillardMSFounded FrstFleur PellerinFounded KorelyacapitalArnaud Le RodallecMaster of Science in ManagementFounded FifteenLouis GrossetGrande EcoleFounded Electra
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Goethe University Frankfurt mafia5
Also came through, then founded or led a company.
Same school
Also attended University of St.Gallen257
Melissa DonohoeVice President at Notion CapitalMarjolaine CatilPrincipal at Newfund CapitalGülce KoçInvestment Manager at IdacapitalDominik MatykaInvestor at Cavalry VenturesChristian NagelInvestor at Earlybird Venture CapitalKarol CieslukAssociate at TCV
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Also attended ESSEC Business School198
Julian LuttermanInvestor at DN CapitalJonas SimoninInvestor at DaphniMarie FerriInvestor at DaphniPierre GalletInvestor at DaphniSauvanne Saint-LégerInvestor at DaphniSofia DahouneInvestor at Daphni
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Also attended Goethe University Frankfurt42
Marcel HollerbachInvestor at Cavalry VenturesDaniel von DevivereVenture Scout at Storm VenturesJohannes FruehaufGeneral Partner at Mission BiocapitalLeonard LangAssociate at BlockwallOliver ManojlovicVP Sales at Personio at PICUS CAPITALSaid HaschemiInvestor at HV Capital
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+ 36 more
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