Find your path to Mariem
681 people in our graph share verified history with Mariem — schools, employers, funds. One of them is your warm intro.
Hannes Voucko-GlocknerunlockedMariem: together at Massachusetts Institute of Technology (2025)
×9Mariem: together at Y Combinator
×2Mariem: together at Lycée Louis-le-Grand
About
Mariem Ould Ismail studied applied mathematics at École Polytechnique and attended MIT. She founded Stockline after observing inefficiencies in manual inventory and order management processes in the seafood wholesale business.
Founder at StocklineYC S25
Intro paths
YC
Mariem went through Y Combinator (Summer 2025) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Brad Flora, Backing expeditions into the future — the partner who ran Stockline's batch and knows the company first-hand. YC profile ↗
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In turn, Mariem can intro founders to Stockline's investors below.
Stockline's investors · 4
Co-founders at Stockline
MD
Moncef DJAFRIFounder
Experience
- Stockline (YC S25)CEO and Co-Foundercurrent2025 — presentSan Francisco Bay Area
- Y CombinatorS252025San Francisco Bay Area
- X-ForumPresident2023 — 2024
- LVMHBras droit CEO2024Paris, Île-de-France, France
- Brigade de sapeurs-pompiers de Paris (BSPP)Ambulance crew leader2022 — 2023Clichy-sous-Bois, Île-de-France, France
Skills & more
Mathématiques1physique chimie1
From Mariem's professional profile.
Frequently asked questions
- Who is Mariem Ould Ismail?
- Mariem Ould Ismail studied applied mathematics at École Polytechnique and attended MIT. She founded Stockline after observing inefficiencies in manual inventory and order management processes in the seafood wholesale business.
- Where does Mariem Ould Ismail work?
- Mariem Ould Ismail is Founder of Stockline.
- What companies did Mariem Ould Ismail found?
- Mariem Ould Ismail founded Stockline.
- Where did Mariem Ould Ismail go to school?
- Mariem Ould Ismail studied at Massachusetts Institute of Technology (Master, Data science); École Polytechnique (Applied maths); CentraleSupélec.
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
Massachusetts Institute of Technology mafia1,221
Also came through, then founded or led a company.
Elad GilPhDFounded Brain Co. +1Hemant TanejaMinorFounded Hippocratic AINat FriedmanBachelor of ScienceFounded XamarinBrad FeldS.B.Founded TechstarsMatt HuangB.S.Founded Paradigm +1Delian AsparouhovDropoutFounded Nightingale +1
+ 1,214 more
École Polytechnique mafia136
Also came through, then founded or led a company.
Arthur MenschMaster of ScienceFounded Mistral AIGuillaume LampleMaster's degreeFounded Mistral AIThomas WolfFounded Hugging FaceRodolphe ArdantPhysicsFounded SpendeskMatt RouifB.SFounded Photoroom +3Anne OsdoitMaster of Science (MS)Founded Moon Surgical +2
+ 129 more
CentraleSupélec mafia94
Also came through, then founded or led a company.
Olivier PomelFounded DatadogAlexis Le-QuocBachelor + MasterFounded DatadogJean-Baptiste KempfITFounded Kyber +2Lorenz NeunerDiplôme d'IngénieurFounded TradeLink +1Adrien GuenardDiplôme d'ingénieurFounded VoltaBack +1Ben CeraBachelor's degreeFounded Gift Shop +1
+ 87 more
Lycée Louis-le-Grand mafia22
Also came through, then founded or led a company.
Ben SaundersA levelFounded One Biosciences +2Julien CristianiFounded CRYOPDPAnne-Charlotte ChauvetClasse préparatoire scientifiqueFounded GluetrailSarah NajmarkMathematicsFounded Osium AIGeoffrey NegiarHigher School Preparatory ClassesFounded The Forecasting CompanySkandere SahliMathématiquesFounded Sandra AI
+ 15 more
Same school
Also attended Massachusetts Institute of Technology2,000
Hemant TanejaCEO & Managing Director of General CatalystNat FriedmanCo-lead of Meta Superintelligence Labs; co-founder of NFDGBrad FeldCo-founder of Foundry and TechstarsMatt HuangCo-founder and Managing Partner at ParadigmDelian AsparouhovPartner at Founders Fund and co-founder of VardaDrew HoustonCo-founder & CEO of Dropbox
+ 1,994 more
Also attended École Polytechnique280
Arthur MenschCo-founder & CEO of Mistral AIGuillaume LampleCo-founder & Chief Scientist of Mistral AIThomas WolfCo-founder & Chief Science Officer of Hugging FaceRodolphe ArdantFounder & President of SpendeskCyriac ParisotInvestor at Index VenturesMichal NatoraSenior Investment Director - Industrial IT & Robotics at Emerald Technology Ventures Ag
+ 274 more
Also attended CentraleSupélec221
Olivier PomelCo-founder & CEO of DatadogAlexis Le-QuocCo-founder & CTO of DatadogPierre GalletInvestor at DaphniSalim HassadPartner at Newfund CapitalBenjamin AuschitzkyScaleup Success Manager at Partech VenturesBruno CrémelGeneral Partner at Partech Ventures
+ 215 more
Also attended Lycée Louis-le-Grand52
Pierre GalletInvestor at DaphniJérôme TafaniInvestor at DaphniNicolas El BazeSenior Advisor at Partech VenturesMatthieu MarchandPrincipal at Partech VenturesGuillaume NordlingerPrincipal, Portfolio & Transactions at Partech VenturesAlexandre GlaserInvestment Director at Educapital
+ 46 more
Shared employers
Also worked at Stockline (YC S25)1
Also worked at Y Combinator428
Garry TanPresident & CEO of Y CombinatorJessica LivingstonCo-founder of Y CombinatorDaniel GrossMeta Superintelligence Labs; co-founder of NFDG and Safe SuperintelligenceAlexis OhanianFounder & General Partner of Seven Seven SixMichael SeibelPartner Emeritus at Y CombinatorDalton CaldwellCo-founder of Standard Capital; Partner Emeritus at Y Combinator
+ 422 more
Also worked at LVMH38
Marjolaine CatilPrincipal at Newfund CapitalLitzie MaarekFounding Partner at EducapitalCyril GuenounInvestor at Aglae VenturesCristina VenturaCatalyst for sustainable impact connecting global talent, corporates and investorsEvgenia MacphersonChief of Staff at Owl VenturesAlex MontefalcoTSG Vantage Team at TSG Consumer Partners
+ 32 more