Fundraising Fox

David Lomelin

Founder

Co-Founder at Arden

San Francisco Bay Area

FoundedArden · YC

About

David Lomelin is co-founder and CTO at Arden. He previously worked on AI at MIT and co-founded Blueprint, and conducted research at MIT's Computer Science and Artificial Intelligence Laboratory and Department of Urban Studies and Planning on language model post-training and applied AI systems.

Co-Founder at ArdenYC X26

Intro paths

YC

David 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 David Lieb, General Partner at Y Combinator — the partner who ran Arden's batch and knows the company first-hand. YC profile ↗

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In turn, David can intro founders to Arden's investors below.

Arden's investors · 7

1Sharpe VenturesPiedmont · $500K – $2M checks · since 2025Coalition OperatorsDover · $500K checks · since 2025Link VenturesCambridge · $1M – $8M checksOrange CollectiveDanville · since 2025StoryHouseSisters · since 2025Susa VenturesSan Francisco · $1M – $5M checks · since 2025Y CombinatorSan Francisco · $500K checks · since 2026

Co-founders at Arden

AKAryaman Khanna
Aryaman KhannaFounder

Experience

  1. Arden (YC P26)Co-Foundercurrent2026 — presentSan Francisco Bay Area
  2. MIT Computer Science and Artificial Intelligence Laboratory (CSAIL)Research Scientist2025 — 2026Massachusetts, United States
  3. BlueprintCo-Founder2025San Francisco Bay Area
  4. Massachusetts Institute of TechnologyResearch Scientist2024Massachusetts, United States

Frequently asked questions

Who is David Lomelin?
David Lomelin is co-founder and CTO at Arden. He previously worked on AI at MIT and co-founded Blueprint, and conducted research at MIT's Computer Science and Artificial Intelligence Laboratory and Department of Urban Studies and Planning on language model post-training and applied AI systems.
Where does David Lomelin work?
David Lomelin is Co-Founder of Arden.
What companies did David Lomelin found?
David Lomelin founded Arden.
Where did David Lomelin go to school?
David Lomelin studied at Massachusetts Institute of Technology (Bachelor's Degree, Artificial Intelligence); Academies of Loudoun (High School Diploma, Academy Of Engineering and Technology); Independence High School.

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

+ 8,766 more

Massachusetts Institute of Technology mafia546

Also came through, then founded or led a company.

Elad GilPhDFounded Brain Co.Nat FriedmanBachelor of ScienceFounded XamarinMatt HuangB.S.Founded HotspotsDelian AsparouhovDropoutFounded Nightingale +1Drew HoustonBSFounded Dropbox +1Arash FerdowsiComputer ScienceFounded Dropbox

+ 539 more

Academies of Loudoun mafia3

Also came through, then founded or led a company.

Dale WilsonAcademy of ScienceFounded KarsaTycho SvobodaAcademy of Engineering and Technology - Information Technology PathwayFounded TensorPool

Same school

Also attended Massachusetts Institute of Technology1,387

Fred WilsonCo-founder & Partner at Union Square VenturesElad GilSolo general partner investing through Gil CapitalAileen LeeFounder & Managing Partner of Cowboy VenturesHemant TanejaCEO & Managing Director of General CatalystNat FriedmanCo-lead of Meta Superintelligence Labs; co-founder of NFDGBrad FeldCo-founder of Foundry and Techstars

+ 1,381 more

Also attended Academies of Loudoun3

Ram MalladiInvestor at Venture Guides Management, L.P.Dale WilsonFounder at KarsaTycho SvobodaFounder at TensorPool

Shared employers

Also worked at Arden (YC P26)1

Aryaman KhannaFounder at Arden

Also worked at MIT Computer Science and Artificial Intelligence Laboratory (CSAIL)68

Tarek MansourCo-founder & CEO of KalshiIvory TangInvestor at ChemistryGleb ChuvpiloManaging Partner at Thundermark CapitalPuneeth MeruvaPartner at Trucks VCMillie Liu LiuFounding Partner at First Star VenturesAnnan ZhangInvestor at E14 Fund

+ 62 more

Also worked at Massachusetts Institute of Technology479

Aileen LeeFounder & Managing Partner of Cowboy VenturesMatt HuangCo-founder and Managing Partner at ParadigmMichael TruellCo-founder & CEO of CursorRaquel UrtasunFounder & CEO of WaabiColin WebbFounder & CEO of Avatar RoboticsAdam BryCo-founder & CEO of Skydio

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