Fundraising Fox

Tomas Barreto

InvestorFounder

Operating Partner, Engineering at Kleiner Perkins · Founder at Okay

San Francisco, California, United States

FoundedOkay · YC

Find your path to Tomas

11,807 people in our graph share verified history with Tomas — schools, employers, funds. One of them is your warm intro.

Ken ChenaultunlockedTomas: together at IBM (2005)
Tomas: together at Kleiner Perkins
×8Tomas: together at Y Combinator
Tomas: together at Duke University

About

Tomas Barreto was VP of Engineering at Checkr and Box, and served as CTO and co-founder of Okay, which was acquired by Stripe. He is currently an Operating Partner for Engineering at Kleiner Perkins.

Founder at OkayYC W20

Intro paths

YC

Tomas went through Y Combinator (Winter 2020) — any YC alum in your network can reach them through the YC community.

→

In turn, Tomas can intro founders to Okay's investors below.

Okay's investors · 3

Kleiner PerkinsMenlo Park · $500K – $15M checksSequoia CapitalMenlo Park · $4.4M – $214M checksY CombinatorSan Francisco · $500K checks · since 2020

Co-founders at Okay

ABAntoine Boulanger
Antoine BoulangerFounder

Experience

  1. Kleiner PerkinsOperating Partner, Engineeringcurrent2024 — present
  2. Various StartupsAdvisor and Angel Investorcurrent2013 — present
  3. Okay (acquired by Stripe)Co-Founder and CTO2019 — 2023San Francisco Bay Area
  4. Sequoia CapitalScout2018 — 2023
  5. Y CombinatorYC Continuity Advisor2018 — 2022San Francisco Bay Area
  6. Checkr, Inc.VP, Product and Engineering2017 — 2019San Francisco Bay Area
  7. BoxVP, Engineering2016 — 2017San Francisco Bay Area
  8. BoxSenior Director, Engineering2015 — 2016San Francisco Bay Area
  9. BoxDirector, Backend Engineering2012 — 2015
  10. BoxEngineering Manager2010 — 2012
  11. BoxSoftware Engineer2008 — 2010
  12. SplunkMember, CIO Advisory Council2011 — 2016
  13. SASSoftware Engineer2008Raleigh-Durham, North Carolina Area
  14. shoeboxed.comVP Engineering2007
  15. MicrosoftSoftware Engineer2007
  16. MicrosoftSoftware Engineer2006
  17. IBMSoftware Engineer2005
  18. Shodor Education Foundation, Inc.Software Engineer2002 — 2005

Skills & more

SaaS18Enterprise Software10Python24Java7PHP10JavaScript5MySQL11SQL5Hadoop2Linux3Git3Software as a Service (SaaS)1
+11 moreManagementLeadershipAgile MethodologiesDistributed SystemsScalabilitySoftware DevelopmentCloud ComputingSoftware EngineeringSoftware DesignMobile ApplicationsBiohacking

From Tomas's professional profile.

Colleagues at Kleiner Perkins

Aatish Nayak
Partner at KPCB
Aditya Naganath
Partner at KPCB
Aidan Pratt
Founder at Autostep
Al Gore
Advisor at KPCB
Athena Ruland
Experience Marketing at KPCB
Beth Seidenberg
Founding Managing Director at Westlake Village BioPartners
Bing Gordon
Advisor and Chief Product Officer at Kleiner Perkins
Brook Byers
Founder, Kleiner Perkins

Frequently asked questions

Who is Tomas Barreto?
Tomas Barreto was VP of Engineering at Checkr and Box, and served as CTO and co-founder of Okay, which was acquired by Stripe. He is currently an Operating Partner for Engineering at Kleiner Perkins.
Where does Tomas Barreto work?
Tomas Barreto is Founder of Okay and Operating Partner, Engineering at Kleiner Perkins.
What companies did Tomas Barreto found?
Tomas Barreto founded Okay.
Where did Tomas Barreto go to school?
Tomas Barreto studied at Duke University (BS, Computer Science).

Founder mafias

Y Combinator mafia10,218

Also came through, then founded or led a company.

Sam AltmanPresidentFounded Tools for Humanity +3Garry TanPresident & CEOFounded Y Combinator +1Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianAmbassador to the EastFounded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded Paradigm +1

+ 10,211 more

Duke University mafia285

Also came through, then founded or led a company.

Fred EhrsamB.S.Founded Nudge +1Zach PerretBSFounded PlaidDavid CummingsBSFounded Undaunted +6George ChurchXray Crystallography 5 publications with Sung-Hou KimFounded Editas Medicine +5Ian PeikonBSEFounded Cajalneuro +2Romesh SubramanianM.S.Founded RaNA Therapeutics +2

+ 278 more

Kleiner Perkins mafia67

Also came through, then founded or led a company.

Eric RiesVenture AdvisorFounded LTSE Group +2Brook ByersFounderFounded Insite Vision +1Jonah GreenbergerEarly(ish)-stage investor / Kleiner-Perkins scoutFounded Bright Exchange +1Raphael RouvinovEngineering FellowFounded Luminopia +1Rebecca LeeKleiner Perkins FellowFounded Elayne +1Jesse HuEngineering FellowFounded Abundant +1

+ 60 more

Box mafia29

Also came through, then founded or led a company.

Ritik MalhotraProduct / Engineering LeadFounded Savvy +2Jeff SeibertHead of Box Boston, Engineering ManagerFounded Crashlytics +1Tanooj LuthraStaff Software EngineerFounded Elph +1Peter LaiSenior EngineerFounded Emburse +1Reshma KhilnaniEngineering ManagerFounded Medplum +1Ted BlosserSenior Account ExecutiveFounded WorkRamp

+ 22 more

Checkr mafia11

Also came through, then founded or led a company.

Rex ZhouSr. Software EngineerFounded Magic Eden +1Marcus RyuDirectorFounded Guidewire SoftwarePatrick J. CostelloChief of Staff to CEOFounded NaytevChris HollindaleHead of Product, Checkr TrustFounded ZestyDaniel YanisseFounder/CEOFounded Checkr GroupJonathan PerichonFounderFounded Checkr Group

+ 4 more

Same school

Also attended Duke University820

Marc AndreessenCo-founder & General Partner at Andreessen HorowitzFred EhrsamCo-founder and Senior Advisor at Paradigm; founder of NudgeJeremy LevinePartner at Bessemer Venture PartnersZach PerretCo-founder & CEO of Plaid; co-founder of MischiefJulie YangVice President at InvestcorpAyaan PatelInvestor at Lightbank

+ 814 more

Shared employers

Also worked at Sequoia Capital204

Michael MoritzFormer Partner at Sequoia Capital; Senior Adviser at Sequoia HeritageDoug LeonePartner at Sequoia Capital; former Global Managing PartnerRoelof BothaAdvisor & former Steward at Sequoia Capital; SpaceX board memberJason CalacanisFounder of LAUNCH; host of This Week in StartupsAlfred LinPartner at Sequoia CapitalMatt HuangCo-founder and Managing Partner at Paradigm

+ 198 more

Also worked at Y Combinator419

Garry TanPresident & CEO of Y CombinatorJessica LivingstonCo-founder of Y CombinatorDaniel GrossMeta Superintelligence Labs; co-founder of NFDG and Safe SuperintelligenceAlexis OhanianFounder & General Partner of Seven Seven SixMichael SeibelPartner Emeritus at Y CombinatorDalton CaldwellCo-founder of Standard Capital; Partner Emeritus at Y Combinator

+ 413 more

Also worked at SAS33

Shravan NarayenInvestor at IVP (Institutional Venture Partners)Hsien-Hui TongExecutive Director, Investments at SGInnovateDominic GoAssociate at Nomadic Venture PartnersJoshua CommonsInvestment Analyst at Altered CapitalNate DaPoreFounder and Managing Partner at Roo CapitalÉric BacqueVP, Sales, Central and Eastern Quebec at Purpose Investments

+ 27 more

Also worked at shoeboxed.com3

Packy McCormickFounder at Not Boring CapitalTaylor MingosCo-founder at ShoeboxedSean GlassPromoter at Evidenced Capital Global Health Ventures