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
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CentraleSupélec mafia36
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Lycée Louis-le-Grand mafia11
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Same school
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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
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Also attended Lycée Louis-le-Grand29
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
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Shared employers
Also worked at Stockline (YC S25)1
Also worked at Y Combinator344
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Also worked at LVMH23
Marjolaine CatilPrincipal at Newfund CapitalLitzie MaarekFounding Partner at EducapitalCyril GuenounInvestor at Aglae VenturesCristina VenturaGeneral Partner & Chief Catalyst Officer at White Star CapitalHélène Henry-PrincePartner at Astanor VenturesAurore AsparInvestment Director at Citizen Capital
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