About
Petrus Werner is the founder and CTO of Stilta. He previously worked at QuantumBlack, McKinsey & Company's AI division, and Amazon Web Services, where he built and deployed AI systems for organizations across Europe.
Co-founder & CTO at StiltaYC W26
Intro paths
YC
Petrus went through Y Combinator (Winter 2026) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Gustaf Alstromer — the partner who ran Stilta's batch and knows the company first-hand. YC profile ↗
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In turn, Petrus can intro founders to Stilta's investors below.
Stilta's investors · 3
Co-founders at Stilta
Experience
- StiltaCo-Founder & Chief Engineering Officercurrent2026 — presentStockholms kommun
- QuantumBlack, AI by McKinseyAI/Data Engineer2022 — 2025Stockholm, Stockholm County, Sweden
- Amazon Web Services (AWS)ML Engineer2021 — 2022Stockholms kommun
- QuantumBlack, AI by McKinseyIntern2020Stockholm, Sverige
- Chalmers Teknologkonsulter ABIT Project Manager2018 — 2019Göteborg, Sverige
Skills & more
Languages Engelska · Franska · Svenska
From Petrus's professional profile.
Frequently asked questions
- Who is Petrus Werner?
- Petrus Werner is the founder and CTO of Stilta. He previously worked at QuantumBlack, McKinsey & Company's AI division, and Amazon Web Services, where he built and deployed AI systems for organizations across Europe.
- Where does Petrus Werner work?
- Petrus Werner is Co-founder & CTO of Stilta.
- What companies did Petrus Werner found?
- Petrus Werner founded Stilta.
- Where did Petrus Werner go to school?
- Petrus Werner studied at Y Combinator; KTH Royal Institute of Technology (Master of Science - MS, Data Science); University of California, Berkeley (Data Science).
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
University of California, Berkeley mafia538
Also came through, then founded or led a company.
Steve WozniakBSFounded AppleTony XuB.S.Founded DoorDashAravind SrinivasDoctor of Philosophy - PhDFounded PerplexityAli GhodsiPost-docFounded DatabricksRyan PetersenBAFounded FlexportDavid FriedbergBAFounded Climate +2
+ 531 more
KTH Royal Institute of Technology mafia40
Also came through, then founded or led a company.
Ali GhodsiPhDFounded DatabricksMagnus HambletonMaster of ScienceFounded Founders Pledge +2Per NordlingMaster's degreeFounded Younium +1Linus MalménDegree Progr. in Mechanical EngineeringFounded Zaver +1Rajiv DatarFounded Chromatan, Inc.Eric Quidenus-WahlforssMAFounded SoundCloud
+ 33 more
Chalmers University of Technology mafia13
Also came through, then founded or led a company.
Per HulthénMaster of Science (MSc)Founded FDS +1Jakob PalmstiernaShips' Officers' DegreeFounded GsrErik Madeyski BengtsonMSc Business AdministrationFounded Sahlgrenska Science ParkBeata KleinBachelor of Science (B.Sc.)Founded ParloaAnders ForslundMaster of Engineering (M.Eng.)Founded Heart AerospaceOlle WermeBachelor of Science (B.Sc.)Founded Camp
+ 6 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 KTH Royal Institute of Technology135
Ali GhodsiCo-founder & CEO of DatabricksWilliam JilltoftDirector of Strategy and Operations at NorthzoneJohanna OlnénData Analyst at NorthzoneRobin WänlundAssociate at Notion CapitalMagnus BergmanInvestor at Luminar VenturesGiuseppe LacerenzaPartner at Keen Venture Partners
+ 129 more
Also attended University of California, Berkeley1,457
Byron DeeterPartner at Bessemer Venture PartnersSteve WozniakCo-founder of AppleTony XuCo-founder & CEO of DoorDashAravind SrinivasCo-founder & CEO of Perplexity AIAli GhodsiCo-founder & CEO of DatabricksRyan PetersenFounder & CEO of Flexport
+ 1,451 more
Also attended Chalmers University of Technology56
Ernest GassóDirector at Inveready Technology Investment GroupJacob KeyInvestor at Luminar VenturesAlexander Fred-OjalaInvestor at EQT VenturesChloe ParamattiInvestor at EQT VenturesJakob PalmstiernaPresident at GSRHimanshu GuptaCo-founder at WeRize at PICUS CAPITAL
+ 50 more
Shared employers
Also worked at Stilta3
Also worked at QuantumBlack, AI by McKinsey18
Raja GhawiPartner at Era VenturesLucille ConroyPrincipal at AbingworthAlexandre ChavotierAI Consultant at Five V CapitalOlivia CavlanPartner at LifeArc VenturesEdoardo ItaliaAssociate at Brighton Park CapitalMohamed Eisimat MohamedInvestor at Atomico
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+ 12 more
Also worked at Amazon Web Services (AWS)270
Nancy WangInvestor at Felicis VenturesJon TurowVenture Partner at Madrona Venture GroupEric AndersonPartner at Scale Venture PartnersKeerthi NalabotuInvestor at True VenturesKen HowardVice President of Technology Services at Flare Capital PartnersEliya ElonInvestor at Notable Capital
+ 264 more
