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Leonard Platzer

Founder

Founder at Deasy Labs

New York, New York, United States

FoundedDeasy Labs · YC

Find your path to Leonard

936 people in our graph share verified history with Leonard — schools, employers, funds. One of them is your warm intro.

Yi Min LohunlockedLeonard: together at National University of Singapore (2019)
Leonard: together at National University of Singapore
×10Leonard: together at Y Combinator

About

Leonard Platzer is a co-founder of Deasy Labs, a metadata engine platform for search applications. He has held software engineering roles at QuantumBlack in machine learning and data quality, Amazon, and Mercedes-Benz, and previously worked at a chatbot startup; he holds a bachelor's degree from the National University of Singapore and a graduate degree from UWC Mostar.

Founder at Deasy LabsYC S23

Intro paths

YC

Leonard went through Y Combinator (Summer 2023) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Nicolas Dessaigne, General Partner at Y Combinator — the partner who ran Deasy Labs's batch and knows the company first-hand. YC profile ↗

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In turn, Leonard can intro founders to Deasy Labs's investors below.

Deasy Labs's investors · 5

General CatalystSan Francisco · $30M checks · since 2023J12 Venturessince 2023Rebel FundSan Francisco · $100K – $5M checks · since 2023RTP GlobalNew York · $1M – $15M checks · since 2023Y CombinatorSan Francisco · $500K checks · since 2023

Co-founders at Deasy Labs

RGReece Griffiths
Reece GriffithsFounder
MPMikko Peiponen
Mikko PeiponenFounder

Experience

  1. CollibraDirector of Product Managementcurrent2026 — presentNew York, United States
  2. CollibraDirector of Engineering2025 — 2026New York, United States
  3. Deasy Labs (acquired by Collibra)Co-founder | CTO2023 — 2025New York, United States
  4. QuantumBlack, AI by McKinseySoftware Engineer, Machine Learning - QuantumBlack Labs2022 — 2023Berlin, Germany
  5. QuantumBlack, AI by McKinseyFellow Intern2022
  6. McKinsey & CompanySoftware Engineer, Machine Learning - QuantumBlack Labs2022 — 2023Berlin, Germany
  7. McKinsey & CompanyFellow Intern2022Berlin, Germany
  8. AmazonEngineering Intern2021Munich, Bavaria, Germany
  9. Mercedes-Benz AGAdvanced Analytics Intern2021Stuttgart, Baden-Württemberg, Germany
  10. e-bot7 - AI for Customer ServiceSoftware Engineer2020Munich, Bavaria, Germany
  11. Reliance Capital | Reliance GroupFinance Intern2018Mumbai, Maharashtra, India

Skills & more

Python (Programming Language)4Amazon Web Services (AWS)1Microsoft Azure2C (Programming Language)React.jsGitSQLNoSQLR (Programming Language)REST APIsKerasTensorFlow
+12 morePandas (Software)PyTorchKotlinPySparkMongoDBVisual Basic for Applications (VBA)SearchProduct ManagementMachine LearningOntologiesKnowledge GraphsUnstructured Data

Languages English · German

  • Machine Learning with Tree-Based Models — DataCamp
  • Software Engineering Virtual Experience — JPMorganChase

From Leonard's professional profile.

Frequently asked questions

Who is Leonard Platzer?
Leonard Platzer is a co-founder of Deasy Labs, a metadata engine platform for search applications. He has held software engineering roles at QuantumBlack in machine learning and data quality, Amazon, and Mercedes-Benz, and previously worked at a chatbot startup; he holds a bachelor's degree from the National University of Singapore and a graduate degree from UWC Mostar.
Where does Leonard Platzer work?
Leonard Platzer is Founder of Deasy Labs.
What companies did Leonard Platzer found?
Leonard Platzer founded Deasy Labs.
Where did Leonard Platzer go to school?
Leonard Platzer studied at Y Combinator (Founder (S23)); National University of Singapore (Bachelor's Degree); United World College Mostar (International Baccalaureate).

Founder mafias

United World College Mostar mafia2

Also came through, then founded or led a company.

Jerry HuangInternational BaccalaureateFounded DeepAware AI (Robotics Center of Silicon Valley)

Same school

Shared employers