About
Nikolas Keller worked as the first hire at an AI-focused manufacturing startup and has prior experience in high-end restaurant kitchens across France, Italy, and Germany. He attended CDTM and is a Z Fellow.
Co-Founder & CEO at WalterYC X26
Intro paths
YC
Nikolas went through Y Combinator (Spring 2026) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Harj Taggar, General Partner at Y Combinator — the partner who ran Walter's batch and knows the company first-hand. YC profile ↗
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In turn, Nikolas can intro founders to Walter's investors below.
Walter's investors · 7
Co-founders at Walter
LP
Lukas PostulkaCo-Founder & CTO
Experience
- Walter (YC P26)CEOcurrent2026 — presentUnited States
- Limrun (YC P26)Angelcurrent2026 — present
- AsterAngelcurrent2026 — present
- Stealth StartupAngelcurrent2026 — present
- DryftIntern2025San Francisco, California, United States
- RestaurantsCook2023 — 2025Côte d'Azur & Munich
Frequently asked questions
- Who is Nikolas Keller?
- Nikolas Keller worked as the first hire at an AI-focused manufacturing startup and has prior experience in high-end restaurant kitchens across France, Italy, and Germany. He attended CDTM and is a Z Fellow.
- Where does Nikolas Keller work?
- Nikolas Keller is Co-Founder & CEO of Walter.
- What companies did Nikolas Keller found?
- Nikolas Keller founded Walter.
- Where did Nikolas Keller go to school?
- Nikolas Keller studied at Y Combinator; Z Fellows; Center for Digital Technology and Management (CDTM).
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
Center for Digital Technology and Management (CDTM) mafia38
Also came through, then founded or led a company.
Anselm BauerHonours DegreeFounded Stylight +1Sebastian SchuonHonours DegreeFounded Stylight +1Mike WaxHonours DegreeFounded KONUX +1Christoph BaumeisterHonours Degree in Technology ManagementFounded Avi MedicalJudith DadaTechnology ManagementFounded LangdockLeo NeuerburgHonsFounded Buildingradar
+ 31 more
Z Fellows mafia37
Also came through, then founded or led a company.
Dante VaisbortFounded Haylon Technologies +1David LinFounderFounded DufflTeddy LiZF1Founded NophinColin SnyderTechnology Fellowship | Less than 1% acceptance rateFounded BanaboMikael NidaFounded LotusKatherine HeFounded Nectar
+ 30 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 Z Fellows40
Cory LevyInvestor at NZVCDavid LinFounder at DufflTeddy LiFounder, CEO at NophinColin SnyderFounder at BanaboMikael NidaFounder at LotusKatherine HeFounder at Nectar
+ 34 more
Also attended Center for Digital Technology and Management (CDTM)66
Gabriel MatuschkaPartner at Fly VenturesAnselm BauerCo-Founder at Alasco at PICUS CAPITALSebastian SchuonCo-Founder at Alasco at PICUS CAPITALFrederic KostInvestor at HV CapitalFabian GrunerInvestor at HV CapitalNelly MarkovaPartner - Molten East at Molten Ventures
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+ 60 more
Shared employers
Also worked at Walter (YC P26)1
Also worked at Limrun (YC P26)1
Also worked at Aster1
Also worked at Stealth Startup356
Andrew ChenGeneral Partner at Andreessen HorowitzGabriel PereyraCo-founder & President of HarveyErica VanInvestment Director at Intel CapitalHemamAdvisor at Clear VenturesArhaan A.Deeptech Fellow at Clear VenturesHamish GarnettAssociate at Manta Ray Ventures
+ 350 more