Subsets

About

Subsets is the leading lifecycle growth platform for consumer subscription teams. We are building the AI decisioning layer that unifies and powers the existing growth stack, enabling teams to automate and scale lifecycle experimentation, orchestrate personalized user journeys, and measure impact across retention, engagement, and LTV without engineering support. Trusted by consumer subscription businesses like The Atlantic, NBCUniversal, Daily Mail, Matas Group, and Hearst. Subsets has raised $6.1m and launched out of Y Combinator’s Summer 2023 batch in San Francisco, and is now based in Copenhagen.

Founders

• 
  Martin Johnsen· Founder

  Martin is the co-founder and CEO of Subsets (S23). Previously worked in management consulting helping large organizations scale AI initiatives across different business functions and industries. Holds an MSc in Mathematical modeling from The Technical University of Denmark.

  LinkedIn ↗
• 
  Oliver Brandt· Founder

  Oliver is the co-founder and CTO of Subsets.com (S23). Previously worked as an ML engineer at DSV (the world largest transport and logistics company) leading the development of their MLOps platform and building products. Holds an MSc in Data Science from The Technical University of Denmark and loves sailing⛵, diving🤿 and Skiing⛷️

  LinkedIn ↗
• 
  Nikolai Skelbo· Founder

  Co-Founder @ Subsets.

  LinkedIn ↗

Product launches · 1 launch

• Subsets – The AI retention co-pilot for subscription businesses ↗▲ 34Jul 17, 2023

  We help consumer subscription businesses improve retention and make subscribers stay longer.

Change history · 9 recorded

1. August 23, 2026
   • Launches refreshed08:00 PM
   • YC partner updated08:00 PM
   • Founder profile updated08:00 PM
2. August 9, 2026
   • Founder profile updated08:00 PM
   • YC partner updated08:00 PM
   • Launches refreshed08:00 PM
3. July 26, 2026
   • YC partner updated08:01 PM
   • Launches refreshed08:01 PM
   • Founder profile updated08:01 PM