Find your path to Leon
185 people in our graph share verified history with Leon — schools, employers, funds. One of them is your warm intro.
Julian LuttermanunlockedLeon: together at ESSEC Business School (2024)
×3Leon: together at University of St.Gallen
Leon: together at ESSEC Business School
Leon: together at Founderful Campus
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 ↗
→
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 mafia10,230
Also came through, then founded or led a company.
Sam AltmanPresidentFounded Tools for Humanity +3Garry TanPresident & CEOFounded Y Combinator +1Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianPartnerFounded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded Paradigm +1
+ 10,223 more
ESSEC Business School mafia63
Also came through, then founded or led a company.
Mario KohleBWLFounded Enpal +1Hugo FacchinMaster in Entrepreneurship - BBA in International BusinessFounded Cuure +1Frederic CourtLeading French Business SchoolFounded Felix CapitalQuentin GazayGrande Ecole - Master in Management (MiM)Founded SpacefillOlivier LaplaceAdvanced Master Degree (Hons)Founded Founders PledgeBruno RaillardMSFounded Frst
+ 56 more
Goethe University Frankfurt mafia18
Also came through, then founded or led a company.
Frederik MerzBachelor Program for Gifted StudentsFounded Ampere +1Arif KhanMasters level coursesFounded Alethea AI +1Marcel HollerbachFounded NAPOliver ClasenDiplom-KaufmannFounded BIT CapitalDr. Alexandra BauseBachelor of Science (BSc)Founded Apollo Health VenturesSebastian RödlingBachelor of Science - BSFounded omnidock
+ 11 more
StartGlobal mafia6
Also came through, then founded or led a company.
University of Luxembourg mafia5
Also came through, then founded or led a company.
Same school
Also attended University of St.Gallen420
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
+ 414 more
Also attended ESSEC Business School322
Julian LuttermanInvestor at DN CapitalJonas SimoninInvestor at DaphniMarie FerriInvestor at DaphniPierre GalletInvestor at DaphniSauvanne Saint-LégerInvestor at DaphniSofia DahouneInvestor at Daphni
+ 316 more
Also attended Goethe University Frankfurt83
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
+ 77 more
Also attended University of Luxembourg19
Alina HeiligerAML Officer at HeadlinePrune CallotGeneral Counsel at Blue like an Orange Sustainable CapitalXavier SabatierInvestor at Bamboo Capital PartnersCamille WisniewskiHead of Legal & Compliance at KartesiaSophie ZietekHead of Compliance and Conducting Officer, Altum Management Company (Luxembourg) S.A. at Altum LuxembourgEmma PonceletFinance Manager at Sofina
+ 13 more
