Martin Johnsen
FounderFounder at Subsets
Copenhagen, Capital Region of Denmark, Denmark
FoundedSubsets · YC
Find your path to Martin
10,721 people in our graph can introduce you to Martin.
Each arrow is one introduction. Sign up to fill in the first one.
Ask Chris Porsgaard to introduce you to Martin
You →Chris · together at Implement Consulting Group (2020) →Martin
Ask Jamie Chen to introduce you to Martin
You →Jamie · 2 people · together at YC S23 →Martin
Ask Sam Okafor to introduce you to Martin
You →Sam · 9 people · together at PwC →Martin
Sign up to find every way you can get introduced to Martin
- Your email: the people you already email who know Martin
- 2nd- and 3rd-degree connections: people you know who worked, studied or invested with Martin
- Your LinkedIn: the connections who can make the intro for you
We rank every route by how warm it is, so you raise on warm intros instead of cold emails.
About
Martin Johnsen is co-founder and CEO of Subsets. He previously worked in management consulting on AI scaling initiatives for large organizations, and holds an MSc in Mathematical Modeling from the Technical University of Denmark.
Founder at SubsetsYC S23
Intro paths
Martin went through Y Combinator (Summer 2023) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Tom Blomfield, Monzo and GoCardless co-founder; Y Combinator partner on leave and Anthropic compute-team member. — the partner who ran Subsets's batch and knows the company first-hand. YC profile ↗
In turn, Martin can intro founders to Subsets's investors below.
Subsets's investors · 7
Co-founders at Subsets


Experience
- Subsets (YC S23)Co-Founder & CEOcurrent2022 — present
- Implement Consulting GroupSenior Management Consultant2021 — 2022
- Implement Consulting GroupManagement Consultant2020 — 2021
- PwCAssistant Consultant, PwC Consulting2018 — 2020Denmark
Skills & more
+12 more
Neural NetworksData ScienceArtificial Intelligence (AI)Artificial Neural NetworksMathematical ModelingPythonMicrosoft ExcelWebtjenester Amazon (AWS)BlockchainTensorFlowEthereumPyTorch- Project management — Implement Consulting Group
- Build Basic Generative Adversarial Networks (GANs) — Coursera
- Machine Learning — Coursera
From Martin's professional profile.
Frequently asked questions
- Who is Martin Johnsen?
- Martin Johnsen is co-founder and CEO of Subsets. He previously worked in management consulting on AI scaling initiatives for large organizations, and holds an MSc in Mathematical Modeling from the Technical University of Denmark.
- Where does Martin Johnsen work?
- Martin Johnsen is Founder of Subsets.
- What companies did Martin Johnsen found?
- Martin Johnsen founded Subsets.
- Where did Martin Johnsen go to school?
- Martin Johnsen studied at Y Combinator (Subsets (S23), San Francisco); DTU - Technical University of Denmark (MSc, Mathematical Modelling and Computation); Boston University (Exchange student, Data Science and management).
Founder mafias
Y Combinator mafia10,508
Also came through, then founded or led a company.
Boston University mafia246
Also came through, then founded or led a company.
Shanghai International Studies University mafia3
Also came through, then founded or led a company.
Same school
Also attended Y Combinator2,000
+ 1,994 more
Also attended Boston University556
+ 550 more
Also attended Shanghai International Studies University15
+ 9 more
Shared employers
Also worked at Subsets (YC S23)3
Also worked at Implement Consulting Group12
+ 6 more













































