Fundraising Fox

Kajo Kratzenstein

Founder

Founder at KugelAudio

Germany

FoundedKugelAudio · YC

About

Kajo Kratzenstein is CTO and founder at KugelAudio. He previously served as CTO at Sagemode, where he led development of an in-game AI coaching product, and built a production aneurysm detection model at Floy GmbH. He holds a BSc and MA in Computer Science from Hasso Plattner Institute.

Founder at KugelAudioYC X26

Intro paths

YC

Kajo 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 Andrew Miklas, General Partner at Y Combinator — the partner who ran KugelAudio's batch and knows the company first-hand. YC profile ↗

→

In turn, Kajo can intro founders to KugelAudio's investors below.

KugelAudio's investors · 1

Y CombinatorSan Francisco · $500K checks · since 2026

Co-founders at KugelAudio

VPViktor Presber
Viktor PresberCo-Founder

Experience

  1. KugelAudioCo-Foundercurrent2025 — presentBerlin, Germany
  2. SagemodeCo-Founder2024 — 2025Berlin, Germany
  3. FloyMachine Learning Engineer2023 — 2024Berlin, Germany
  4. FloySystem Engineer in System Integration2022 — 2023Berlin, Germany
  5. FloyInternship in System Integration2022Berlin, Germany
  6. Deutsches Zentrum für Luft-und Raumfahrt e.V.Internship in Aerospace Technology2018Brunswick, Lower Saxony, Germany

Skills & more

Edge ComputingComputer-VisionKünstliche Intelligenz (KI)Kontinuierliche IntegrationPyTorchProjektarbeit3Convolutional Neural NetworksObjektorientierte Programmierung (OOP)Python (Programmiersprache)2C (Programmiersprache)DockerDICOM
+2 moreProjektleitungWeb-Entwicklung

Languages Deutsch · Englisch

  • International Baccalaureate Diploma — International Baccalaureate
  • MINT-EC Zertifikat — MINT-EC

From Kajo's professional profile.

Frequently asked questions

Who is Kajo Kratzenstein?
Kajo Kratzenstein is CTO and founder at KugelAudio. He previously served as CTO at Sagemode, where he led development of an in-game AI coaching product, and built a production aneurysm detection model at Floy GmbH. He holds a BSc and MA in Computer Science from Hasso Plattner Institute.
Where does Kajo Kratzenstein work?
Kajo Kratzenstein is Founder of KugelAudio.
What companies did Kajo Kratzenstein found?
Kajo Kratzenstein founded KugelAudio.
Where did Kajo Kratzenstein go to school?
Kajo Kratzenstein studied at Hasso Plattner Institute (Master of Science - MS, Computer Science); Hasso Plattner Institute (Bachelor of Science - BS, IT Systems Engineering); Y Combinator (P26).

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

Hasso Plattner Institute mafia12

Also came through, then founded or led a company.

Torben SchreiterMaster of Science (M.Sc.)Founded SignavioFabio SchmidbergerMaster of Science - MSFounded voizeMarcel SchmidbergerFounded voizeErik ZieglerBachelor's degreeFounded voizeDustin LangePhD (Dr.-Ing.)Founded MidplaneAdrian ZieglerBachelor’s DegreeFounded CloudCruise

+ 5 more

Ellesmere College mafia2

Also came through, then founded or led a company.

Richard GodwinPhysicsFounded AlumaPower

Same school

Also attended Hasso Plattner Institute15

Torben SchreiterInvestor at Extantia CapitalFabian KönigInvestment Manager at PT1Thanh Schrader-NguyenCo-Founder & CPTO, Frieda Health at MaximonAnnika LauerDirector of Operations at Alchemist JapanFleur EngelbertsInvestor at Great Stuff VenturesFabio SchmidbergerFounder at voize

+ 9 more

Also attended Y Combinator2,000

Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesCollin WallaceGeneral Partner at Lobby Capital

+ 1,994 more

Also attended Ellesmere College2

Charles VasletSenior Partner, Chief Revenue Officer at Emerald Technology Ventures AgRichard GodwinVenture Partner at Starbridge Venture Capital Llc

Shared employers

Also worked at KugelAudio1

Viktor PresberCo-Founder at KugelAudio

Also worked at Sagemode1

Viktor PresberCo-Founder at KugelAudio

Also worked at Floy1

Laura SeifertInvestor at HV Capital

Also worked at Deutsches Zentrum für Luft-und Raumfahrt e.V.17

RobInvestor at henQ vcMaximilian NaumowInvestment Manager at LBBW Venture Capital GmbHSebastian BöhmerFounding Partner at First MomentumOmar HedeyaInvestor at 10x FoundersAndy BartlettInvestor at Walnut Venture AssociatesRenata BaumgartenOffice Manager at EMZ Partners

+ 11 more