Find your path to Zack
436 people in our graph share verified history with Zack — schools, employers, funds. One of them is your warm intro.
Lauren ArribasunlockedZack: together at The Wharton School (2018–2019)
×7Zack: together at Columbia University
×3Zack: together at The Wharton School
Zack: together at Ophelia
Founder at OpheliaYC W20
Intro paths
YC
Zack went through Y Combinator (Winter 2020) — any YC alum in your network can reach them through the YC community.
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In turn, Zack can intro founders to Ophelia's investors below.
Ophelia's investors · 9
Four Acres CapitalNew York · $50K – $100K checksGeneral CatalystSan Francisco · $30M checks · since 2021Good FriendsSan Francisco · $250K – $1M checks · since 2021Interplay VenturesNew York · since 2021Interplay Ventures Early Stage Management LlcNew York · $1M checksMenlo VenturesSan Francisco · $1M – $20M checks · since 2021Refactor CapitalBurlingame · $1M – $2M checks · since 2021Tiger Global ManagementNew York · $1M – $100M checks · since 2021Y CombinatorSan Francisco · $500K checks · since 2020
Co-founders at Ophelia
MG

Mattan GriffelFounder
Experience
- OpheliaFounder & CEOcurrent2019 — present
- A3VenturesVenture Capital Intern2018San Francisco Bay Area
- Level SolarHead of Growth2014 — 2017New York, NY
Skills & more
Python (Programming Language)48Salesforce.com10Django2Flask4Salesforce3Amazon Web Services (AWS)3Corporate Development57Venture Capital36Web Development7Corporate Finance4Customer Acquisition5
From Zack's professional profile.
Frequently asked questions
- Who is Zack Gray?
- Founder at Ophelia
- Where does Zack Gray work?
- Zack Gray is Founder of Ophelia.
- What companies did Zack Gray found?
- Zack Gray founded Ophelia.
- Where did Zack Gray go to school?
- Zack Gray studied at Y Combinator; The Wharton School (MBA, Finance); Columbia University (Bachelor of Arts (B.A.), Astrophysics).
Founder mafias
Y Combinator mafia10,230
Also came through, then founded or led a company.
Sam AltmanPresidentFounded Tools for Humanity +3Garry TanPresident & CEOFounded Y Combinator +1Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianPartnerFounded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded Paradigm +1
+ 10,223 more
The Wharton School mafia570
Also came through, then founded or led a company.
Kunal BahlMarketing and Operations StrategyFounded SnapdealJack AbrahamBachelors of Science in Economics *Dropped outFounded Atomic Labs +3Gleb ChuvpiloMaster of Business Administration (MBA)Founded Thor Directed Energy +6Jagmeet LambaMBAFounded Certa +3Ankur JainBachelor of Science (BS)Founded Kairos +3Edward LandoBachelor's DegreeFounded Link +2
+ 563 more
Columbia University mafia454
Also came through, then founded or led a company.
Ben HorowitzBAFounded OpswareChris DixonMaster of Arts - MAFounded Founder CollectiveKai-Fu LeeA.B.Founded 01Kevin M. SlawinB.A.Founded Phoenix SENOLYTIX +4Paul GrossingerMaster of Science; M.SFounded Gaingels +3Trevor PriceMasters of Science CandidateFounded Town Hall Ventures +2
+ 447 more
Same school
Also attended Y Combinator2,000
Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyArhaan A.Deeptech Fellow at Clear VenturesCollin WallaceGeneral Partner at Lobby CapitalVictor SantosVictor Scout at One Way Ventures
+ 1,994 more
Also attended The Wharton School2,000
Fred WilsonCo-founder & Partner at Union Square VenturesSarah GuoFounder & General Partner of ConvictionJosh KopelmanFounder and Partner at First Round CapitalAydin SenkutFounder & Managing Partner at FelicisKunal BahlCo-founder of Snapdeal; co-founder of Titan CapitalJack AbrahamFounder, CEO & Managing Partner of Atomic
+ 1,994 more
Also attended Columbia University1,297
Ben HorowitzCo-founder & General Partner at Andreessen HorowitzDoug LeonePartner at Sequoia Capital; former Global Managing PartnerChris DixonFounder & Managing Partner of a16z crypto at Andreessen HorowitzKai-Fu LeeChairman of Sinovation Ventures and CEO of 01.AIGabriella GiglioHR & Executive Talent at General CatalystScott BillerInvestor at GV (Google Ventures)
+ 1,291 more



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