About
León Bartolomé Carreño is co-founder of Momento. He previously worked as an Associate at McKinsey & Company for three years, focusing on strategy and operations projects in insurance and private equity, and holds a Master's degree in Mechanical Engineering from Imperial College London.
Founder at MomentoYC W22
Intro paths
YC
León went through Y Combinator (Winter 2022) — 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 Momento's batch and knows the company first-hand. YC profile ↗
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In turn, León can intro founders to Momento's investors below.
Momento's investors · 9
American Family VenturesBoston · $250K – $10M checks · since 2025BoxGroupNew York · $1M checksClocktower VenturesSanta Monica · $100K – $20M checksFoundation CapitalSan Francisco · $250K – $15M checks · since 2025HedosophiaLondon · since 2025HSCM VenturesStamford · since 2025PICUS CAPITALMunich · $100K – $300M checksWollef VenturesMexico CityY CombinatorSan Francisco · $500K checks · since 2022
Co-founders at Momento
Experience
- MomentoCo-Foundercurrent2021 — presentCiudad de México, México
- McKinsey & CompanyAssociate2020 — 2021Madrid, Comunidad de Madrid, España
- McKinsey & CompanyBusiness Analyst2018 — 2020Madrid y alrededores, España
- Indexa CapitalFinancial Analyst2016 — 2018Madrid y alrededores, España
- McKinsey & CompanySummer Business Analyst2017
- Carbures EngineeringSummer Internship2015
- Imeguisa (Portugal), S.A.Summer Internship2015
Skills & more
Microsoft OfficeMatlabMicrosoft ExcelTrabajo en equipoMicrosoft PowerPoint
Languages Español · Ingles
From León's professional profile.
Frequently asked questions
- Who is León Bartolomé Carreño?
- León Bartolomé Carreño is co-founder of Momento. He previously worked as an Associate at McKinsey & Company for three years, focusing on strategy and operations projects in insurance and private equity, and holds a Master's degree in Mechanical Engineering from Imperial College London.
- Where does León Bartolomé Carreño work?
- León Bartolomé Carreño is Founder of Momento.
- What companies did León Bartolomé Carreño found?
- León Bartolomé Carreño founded Momento.
- Where did León Bartolomé Carreño go to school?
- León Bartolomé Carreño studied at Y Combinator (YC W22 (co-founder at Momento)); Imperial Business School (Master of Science - MS, Business Analytics (part-time)); Imperial College London (Master of Engineering - MEng, Mechanical Engineering).
Founder mafias
Y Combinator mafia8,773
Also came through, then founded or led a company.
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
Also came through, then founded or led a company.
Ryan SheaEntrepreneurshipFounded StacksTarek MansourFounded KalshiSuhail DoshiEating beans & riceFounded Playground +1Subomi OluwalanaW22Founded ConvoyDarius "Bubs" MonsefS19Founded Sightbox +3Matthew ScholzFounded Oisin Biotechnologies +3
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McKinsey & Company mafia337
Also came through, then founded or led a company.
Elad GilConsultantFounded Brain Co.Tony XuBusiness AnalystFounded DoorDashAlexandre ProtAssociateFounded Smartven +1Inaki BerenguerAssociateFounded InfiniteWatch +2Ryan XueManagement ConsultantFounded Andco +2Max AhrensFellow InternFounded Maihem +2
+ 330 more
Imperial College London mafia196
Also came through, then founded or led a company.
Brent HobermanAdvisor, Innovation FundFounded Founders Pledge +3Nessan BerminghamDoctor of Philosophy - PhDFounded Korro Bio +2Alice BentinckComputer Science Department Industrial Liaison BoardFounded Entrepreneurs First +1Ahmed DeyabMSc Advanced Computational Methods for AeronauticsFounded Instagram +1Sebastian TrousilPhDFounded City Therapeutics +1Slava SolonitsynMBAFounded No Cap +1
+ 189 more
The London School of Economics and Political Science (LSE) mafia133
Also came through, then founded or led a company.
Anne OsdoitCorporate Finance & Strategy - Executive summer schoolFounded Moon Surgical +2Jim McKelveyGeneral CourseFounded Invisibly +1Steve LoughlinCertificateFounded RelateIQ +1James J BesharaDevelopment Economics and International DevelopmentFounded Tilt +1Kyle MichelsonGovernment & GlobalizationFounded Getlabs +1Evan BeardEntrepreneurshipFounded Standard Bots +1
+ 126 more
Same school
Also attended Y Combinator2,000
Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesCollin WallaceGeneral Partner at Lobby Capital
+ 1,994 more
Also attended Imperial Business School81
Nikolai RiiberInvestor at InvestinorAlessandro De BenedettiAssociate at NorthzoneMillan SuriPrincipal at Episode1Adrian RaduInvestor at Khosla VenturesTroy PhoaAssociate at Marlin Equity PartnersMaroof AhmedFounder at Octopus Ventures
+ 75 more
Also attended IESE Business School194
Avi MeirCo-founder & CEO of PerkCarlos ContiManaging Partner at Inveready Technology Investment GroupIgnacio PuigGeneral Partner at Inveready Technology Investment GroupRobin LiInvestor at GGV CapitalDan LupuInvestor at Earlybird Venture CapitalSamuel GilCEO & General Partner at JME Ventures
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Also attended Harvard University1,559
Alfred LinPartner at Sequoia CapitalChris DixonFounder & Managing Partner of a16z crypto at Andreessen HorowitzSarah TavelVenture Partner at BenchmarkDanny RimerPartner at Index VenturesLaela SturdyManaging Partner at CapitalGBill GatesCo-founder of Microsoft; Chair of the Gates Foundation
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Shared employers
Also worked at Momento2
Also worked at McKinsey & Company1,548
Elad GilSolo general partner investing through Gil CapitalJim BreyerFounder & CEO of Breyer CapitalAnn Miura-KoCo-founding Partner at FloodgateJeremy LiewPartner at Lightspeed Venture PartnersMike SpeiserManaging Director at Sutter Hill VenturesJeremy LevinePartner at Bessemer Venture Partners
+ 1,542 more
