Fundraising Fox

Dimitris Fotis Sakellariou

Founder

Founder at Piramidal

New York City Metropolitan Area

FoundedPiramidal Β· YC

About

Dimitris Fotis Sakellariou spent four years at IQVIA deploying AI systems for pharmaceutical and healthcare applications, and has over 12 years of experience in EEG research including clinical work in research hospitals and peer-reviewed publications. He studied at King's College London and is now founder and CEO of Piramidal.

LinkedIn β†—X / Twitter β†—
Latest on 𝕏

Dimitris Fotis Sakellariou @dsacellarius

Time isn't time, time is memory.

May 20, 2026 Β· β™₯ 1

Dimitris Fotis Sakellariou @dsacellarius

Can't wait to get 8 hours of sleep in 10 minutes.

Oct 3, 2025 Β· β™₯ 6

Dimitris Fotis Sakellariou @dsacellarius

Proud to partner with the Dept of Neurology at Cleveland Clinic to first benefit those that need it the most https://t.co/wScm74LgvE

Aug 14, 2025 Β· β™₯ 5

Founder at PiramidalYC W24

Intro paths

YC

Dimitris went through Y Combinator (Winter 2024) β€” any YC alum in your network can reach them through the YC community.

β†’

In turn, Dimitris can intro founders to Piramidal's investors below.

Piramidal's investors Β· 6

Adverb Venturesfutureland venturesGeek VenturesLIONHEART VENTURESRitual CapitalY Combinator

Co-founders at Piramidal

KPKris Pahuja
Kris PahujaFounder

Experience

  1. Piramidal (YC W24)Founder & CEOcurrent2024 β€” presentSan Francisco Bay Area
  2. IQVIASenior AI Engineer - Deep Learning Lead2022 β€” 2024Greater London, England, United Kingdom
  3. IQVIAAI Scientist 22020 β€” 2022London Area, United Kingdom
  4. FacultyData Science Fellow2019 β€” 2020London Area, United Kingdom
  5. King's College LondonPostdoctoral Researcher2017 β€” 2019
  6. King's College LondonResearch Associate2014 β€” 2015London Area, United Kingdom

Education

  1. Y CombinatorW24
  2. King's College LondonDoctor of Philosophy - PhD, Applied Machine Learning - Neural Engineering2013 β€” 2016
  3. University of PatrasMaster of Science - MS, Computational Neuroscience & Artificial Intelligence2010 β€” 2013
  4. University of PatrasBachelor's degree, Physics2004 β€” 2010

Skills & more

Data PipelinesProof of ConceptCloud ServicesDebuggingArtificial Intelligence (AI)Unsupervised LearningSoftware DevelopmentScikit-LearnAnalyticsStatisticsComputer ScienceMathematics
+12 morePhysicsKnowledge GraphsDigital Signal ProcessingData MiningGraph TheoryContinuous Integration and Continuous Delivery (CI/CD)Natural Language Processing (NLP)Pattern Recognitionfoundational AIWritingSQLDeep Neural Networks (DNN)

From Dimitris's professional profile.

Founder mafias

Y Combinator mafia8,668

Also came through, then founded or led a company.

Sam AltmanPresidentFounded LooptFred EhrsamYC Summer 2012Founded CoinbaseMatt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded PursuitDelian AsparouhovYC Summer 2014Founded Nightingale +1Justin KanYC Winter 2018Founded Rye +3

+ 8,661 more

King's College London mafia35

Also came through, then founded or led a company.

Ansuman SatpathyComputer ScienceFounded Santa Ana Bio +2Allen LawFounded MOVE [REPEAT] +1Mahyad GhassemiBachelor's degreeFounded Okibi +1Chirag PatelPharmacyFounded PaysafeYele BademosiBachelor of Medical Sciences (BMedSci)Founded NestcoinAleks HabdankB.Sc(Hons)Founded iDefigo Group

+ 28 more

University of Patras mafia3

Also came through, then founded or led a company.

Nikos KaramolegkosDiploma (M.S. equivalency)Founded Gerald Technologies, IncPanos StravopodisDoctor of Philosophy (PhD)Founded Elyos AI

Same school

Also attended Y Combinator2,000

Leo LuInvestor at Foundation CapitalMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesVictor SantosVictor Scout at One Way VenturesSwapnil JainCEO, Observe.AI at EMERGENT VENTURESChase AdamPartner at Very Serious Ventures

+ 1,994 more

Also attended King's College London219

Harry StebbingsFounder & General Partner at 20VCDominic JacquessonInvestor at Index VenturesJohn HortonInvestor at DN CapitalBob ThomasPartner at OxxKatherineHealthcare Investment Lead at Hummingbird VenturesΓ–zge Gizem YerlikayaGeneral Counsel at Idacapital

+ 213 more

Also attended University of Patras7

Nikos DeligiannisMachine learning | Data | Tech at AngelwiseSpyros TrachanisManaging Partner at Odyssey Venture Funds LPMarina BoukiIndependent, Non-Executive Member (Investment Committee) at Halcyon Equity Advisors SARLNancy LivaFinance Director at Corallia VenturesLouisa ZahareasDesign Lead at HighTechXLNikos KaramolegkosFounder at Gerald Technologies, Inc

+ 1 more

Shared employers

Also worked at Piramidal (YC W24)3

David LangerFounder and Managing Partner at LIONHEART VENTURESDavid LangerFounder/CEO at ZestyKris PahujaFounder at Piramidal

Also worked at IQVIA31

Alain HuriezVenture Partner at Advent Life SciencesDana Marohn SpiliotisPartner at Operator CollectiveRoel DekkersInvestment manager at NoaberMaulik MehtaManaging Partner at Excelerate Health VenturesMartin GouldstoneDigital Pharma Advisor at Excelerate Health VenturesJeanne HechtDigital Pharma Advisor at Excelerate Health Ventures

+ 25 more

Also worked at Faculty1

Sir Mike WigstonSenior Advisor at Intrepid Growth Partners

Also worked at King's College London42

KatherineHealthcare Investment Lead at Hummingbird VenturesOliver HemmingsAnalyst at Delin VenturesLincoln HengInvestment Analyst at Verge HealthTech FundDavid BirchVenture Partner & Advisor at 1414 VenturesSarah KakadellisInvestor at SUPPLY CHANGE CAPITALIstvan SzandaInvestor at Sand Hill Angels

+ 36 more