About
Zach Witzel previously conducted growth experiments at Uber. He is now building Helium, a platform that personalizes upsell flows for consumer subscription companies.
Founder at HeliumYC S24
Intro paths
YC
Zach went through Y Combinator (Summer 2024) — 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 Helium's batch and knows the company first-hand. YC profile ↗
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In turn, Zach can intro founders to Helium's investors below.
Helium's investors · 3
Co-founders at Helium
SJ
Shishir JakatiFounder
AD
Anish DoshiFounder
Experience
- HeliumCo-Founder and CEOcurrent2024 — presentSan Francisco Bay Area
- UberProduct Lead2019 — 2023
- Kleiner PerkinsFellow2019 — 2020
- Collective HealthData + Product2018
- SyapseProduct2017
- CareJourneyData2016
Skills & more
Product Management17Healthcare19Data Analysis23Start-ups18Python13Public Speaking28Leadership31
Languages Chinese · English · Spanish
From Zach's professional profile.
Frequently asked questions
- Who is Zach Witzel?
- Zach Witzel previously conducted growth experiments at Uber. He is now building Helium, a platform that personalizes upsell flows for consumer subscription companies.
- Where does Zach Witzel work?
- Zach Witzel is Founder of Helium.
- What companies did Zach Witzel found?
- Zach Witzel founded Helium.
- Where did Zach Witzel go to school?
- Zach Witzel studied at Y Combinator (S24); Minerva University (B.S. Computer Science (Concentration: Machine Learning)).
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
Y Combinator mafia4,716
Also came through, then founded or led a company.
Ryan SheaEntrepreneurshipFounded StacksTarek MansourFounded KalshiSuhail DoshiEating beans & riceFounded Playground +1Subomi OluwalanaW22Founded ConvoyDarius "Bubs" MonsefS19Founded Sightbox +3Matthew ScholzFounded Oisin Biotechnologies +3
+ 4,709 more
Uber mafia170
Also came through, then founded or led a company.
Garrett CampFounder & ChairmanFounded Aero +1Raquel UrtasunChief Scientist, Head of Uber ATG R&DFounded WaabiRobin ChanAdvisorFounded Operator +2Dan LifshitsEngineering ContractorFounded GO GLOBAL WORLD +1Ben LernerSoftware Engineer, InfrastructureFounded Espresso AI +1Bastien BeurierSoftware EngineerFounded Lantern +1
+ 163 more
Kleiner Perkins mafia54
Also came through, then founded or led a company.
Raphael RouvinovEngineering FellowFounded Luminopia +1Rebecca LeeKleiner Perkins FellowFounded Elayne +1Jesse HuEngineering FellowFounded Abundant +1Ted SchleinGeneral PartnerFounded GetReal SecurityMuzzammil (MZ) ZaveriPartnerFounded ProxinoDr. Cheryl MartinExecutive in ResidenceFounded Renmatix
+ 47 more
Minerva University mafia9
Also came through, then founded or led a company.
Alisha FredrikssonBachelors of ScienceFounded SeaboundRaymundo GonzalezBachelor of ScienceFounded EdenGuilherme NazarethBachelor’s DegreeFounded TrelaAlan ChanDropoutFounded HeptabaseWojciech BłaszakBachelor's degreeFounded GolfAntoni GmitrukFounded Golf
+ 2 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 VenturesMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports Ventures
+ 1,994 more
Also attended Minerva University13
Gadi BorovichCofounder at Antigravity CapitalHeyu HuangPartner at Fresco CapitalSophie Yifan ChanImpact Partner at Fresco CapitalMax TehSenior Associate at Alpha Startups Pre-AcceleratorAlberto ArenazaCo-Founder at Transcend NetworkAlisha FredrikssonFounder at Seabound
+ 7 more
Shared employers
Also worked at Helium1
Also worked at Uber420
Bill GurleyGeneral Partner Emeritus at BenchmarkJason CalacanisFounder of LAUNCH; host of This Week in StartupsAndrew ChenGeneral Partner at Andreessen HorowitzGarrett CampCo-founder of Uber and StumbleUpon; founder of ExpaRaquel UrtasunFounder & CEO of WaabiFrédérique DameInvestor at GV (Google Ventures)
+ 414 more
Also worked at Kleiner Perkins157
John DoerrChairman of Kleiner PerkinsMary MeekerFounder & General Partner at BONDAileen LeeFounder & Managing Partner of Cowboy VenturesMamoon HamidPartner at Kleiner PerkinsAlex TranInvestment Team at General CatalystJordan OrmontPartner, Talent at Menlo Ventures
+ 151 more
Also worked at Collective Health7
Halle TeccoFounder, Rock Health & Natalist at Giant Ventures Global LlpHoward WolfInvestor at Streamlined VenturesColleen CozzensVice President, Head of Talent, Healthcare at Oak HC/FTKelsey MaguireInvestor at Sandbox IndustriesKristin Baker SpohnGeneral Partner at CRV (Charles River Ventures)Kirthiga ReddyPartner at F7 Ventures
+ 1 more