Fundraising Fox

Siraj Khaliq

InvestorFounder

Partner at Atomico · Board director at Fabricnano

London

Writes $5M – $15M checks · typically $10M

FoundedFabricnano

About

Siraj Khaliq is CEO and co-founder of Kritos AI. Previously, he worked as an engineer at Google and co-founded Climate Corporation before joining Atomico as an investor focused on deep tech startups at Series A and beyond. His background includes early work in distributed systems and large-scale data infrastructure.

Board director at Fabricnano

Intro paths

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In turn, Siraj can intro founders to Fabricnano's investors below.

Fabricnano's investors · 6

AtomicoLondon · since 2021BackedLondon · $500K – $5M checksBoxOne VenturesMontréal · $500K checksEntrepreneur FirstBengaluru · $1M – $7M checksHoxton VenturesLondon · $500K – $5M checks · since 2021Pace VenturesBerlin · $550K – $1.6M checks

Co-founders at Fabricnano

GAGrant Aarons
Grant AaronsExecutive Officer, Director, Promoter
FR
Ferdinando RandisiDirector

Experience

  1. Kritos AICEO & co-foundercurrent2026 — present
  2. Kembara VCSenior Strategic Advisorcurrent2025 — present
  3. PsiQuantumBoard Membercurrent2019 — present
  4. ScanditBoard Membercurrent2017 — present
  5. GraphcoreBoard Member2017 — 2024
  6. AtomicoInvestment Partner2015 — 2023
  7. AploBoard Member2021 — 2023
  8. CloudNCBoard Member2018 — 2023
  9. arculus – a Jungheinrich companyBoard Member2020 — 2021
  10. The Climate CorporationCo-founder & Chief Technical Officer2006 — 2013San Francisco Bay Area
  11. Google IncStaff Software Engineer2002 — 2006Mountain View, California, United States

Education

  1. Stanford UniversityMS, Computer Science2000 — 2002
  2. University of CambridgeBA, MA Hons1997 — 2000

Skills & more

Organizational LeadershipBoard of DirectorsC-LevelBusiness StrategyEngineering ManagementTechnical HiringScalability4Software Engineering3Distributed Systems3Algorithms3Cloud Computing3Big Data2
+6 moreMachine LearningStart-upsMapReduceHadoopPythonStrategy

From Siraj's professional profile.

Deals · 2

PsiQuantum, Corp.Board seat

via Atomico · filed May 2025 · $22M raise

FabricnanoBoard seat

via Atomico · filed Jun 2021 · $12.5M raise

Attribution from SEC filings, press coverage, and firm rosters.

Colleagues at Atomico

Adam Lasri
Partner at Atomico
Ahmed Alriyami
Investor at Atomico
Ahmed Deyab
Investor at Atomico
Alexander (Sasha) Vidiborskiy
Principal at Atomico
Andrea Anzola Verano
Associate at Atomico
Andreas Helbig
Partner at Atomico
Ben Blume
Partner at Atomico
Busiel (Buzz) Morley
Analyst at Atomico

Frequently asked questions

Where does Siraj Khaliq work?
Siraj Khaliq is Partner at Atomico and Founder at Fabricnano.
What check size does Siraj Khaliq write?
Siraj Khaliq typically writes checks of $5M – $15M.
What companies did Siraj Khaliq found?
Siraj Khaliq founded Fabricnano.

Founder mafias

Stanford University mafia837

Also came through, then founded or led a company.

Reid HoffmanB.S.Founded Manas AI +1Joe LonsdaleBSFounded Opto +3Mike Maples JrBSFounded Pattern BreakersSteve JurvetsonBSEEFounded Mojo VisionBalaji SrinivasanGraduate StudentFounded Counsyl +1Jess LeeBSFounded Polyvore

+ 830 more

University of Cambridge mafia243

Also came through, then founded or led a company.

Immad AkhundMaster of Arts (M.A.)Founded Clickpass +2Inaki BerenguerMasterFounded InfiniteWatch +2Harish AgarwalMaster of Philosophy - MPhilFounded Nori +2Leonard Picardo1st class MEngFounded HeliosX +1Matt CliffordBachelor's DegreeFounded Entrepreneurs First +1Queen Chinyere QuinnPhD.Founded Oathafrica +1

+ 236 more

Atomico mafia10

Also came through, then founded or led a company.

Niklas ZennströmFounder and CEOFounded SkypeJack AbrahamManaging PartnerFounded Sauron +7Stefano BernardiScoutFounded Unrulycap +1Ahmed DeyabInvestorFounded Instagram +1Victor JollySenior AssociateFounded GarantmeJosefin LandgårdAngelFounded Kry

+ 3 more

Fabricnano mafia3

Also came through, then founded or led a company.

Alex BrunickiBoard DirectorFounded BackedDebesh MandalTheoretical ScientistFounded Nanograb

Scandit mafia2

Also came through, then founded or led a company.

Tim ReinhartComputer Vision InternFounded Dodo

Same school

Also attended Stanford University2,000

Peter ThielCo-founder & Partner at Founders FundReid HoffmanCo-founder of LinkedIn; Partner at GreylockDavid SacksCo-founder & General Partner at Craft Ventures; PCAST co-chair; former White House AI & crypto czarKeith RaboisManaging Director at Khosla VenturesGarry TanPresident & CEO of Y CombinatorAlfred LinPartner at Sequoia Capital

+ 1,994 more

Also attended University of Cambridge847

Niko BonatsosInvestment Team at General CatalystGeorgia StevensonInvestor at Index VenturesHannah SealInvestor at Index VenturesLeah von SiemensPartner at Manta Ray VenturesAnthony PhilippakisInvestor at GV (Google Ventures)Erik NordlanderInvestor at GV (Google Ventures)

+ 841 more

Shared employers

Also worked at Graphcore8

Eyal NivManaging Partner | First at PitangoIsaac HillelManaging Partner | Growth at PitangoDaniel DocterManaging Director at Dell Technologies CapitalAmelia ArmourPartner at Amadeus Capital PartnersOlivier HuezPartner at Red River WestNicolas AutretPartner at Walden Catalyst

+ 2 more

Also worked at Atomico78

Niklas ZennströmCo-founder and CEO of AtomicoMattias LjungmanInvestor at Moonfire VenturesSanna BlomkvistSustainability Lead at NorthzoneWouterHead of Nomads (Fund-of-Fund) at Hummingbird VenturesAndrea GurnariInvestor at Moonfire VenturesWill DuftonPartner at Giant Ventures Global Llp

+ 72 more

Also worked at CloudNC4

Paul McNabbGeneral Partner at Episode1Alexander (Sasha) VidiborskiyPrincipal at AtomicoTheo SavilleFounder at CloudNCChris EmeryCTO at CloudNC

Also worked at arculus – a Jungheinrich company2

Robert LacherFounding Partner at Visionaries ClubAlexander (Sasha) VidiborskiyPrincipal at Atomico