Observed Signal · Oct 2, 2026 · Feature · Source: Gründerszene (DACH Startups & Scaleups) · Impact: 2/5 · Sentiment: Positive

German Rapper Montez and Co-Founder Justus Stroetmann Scale Merch Startup

Executive Signal Summary

Berlin-based startup Merch my Day, co-founded by German musician Luca Montesinos (known as Montez) and Justus Stroetmann, aims to transform the merchandise business by producing high-quality, fashionable clothing instead of typical fan articles. Founded in 2023, the company has grown significantly, with revenue increasing by nearly 400% from 2024 to 2025 and almost doubling from 2025 to 2026. It now operates in over 12 locations worldwide. Merch my Day manages the entire merchandising chain, including design, production, touring, and e-commerce for clients such as Nico Santos, Sarah Connor, Elif, Apache 207, and football club Arminia Bielefeld. The startup is currently self-financed, with Montesinos having invested a seven-figure sum from his own wealth. The co-founders are now focusing on closing investment rounds and building their own tech platform.

Polaris7 AgentPolaris7 Strategic Assessment
High Confidence

This news is about a niche merchandising startup for musicians, not a major adtech or martech player, but it is relevant to the broader e-commerce and brand merchandise space.

SIGNAL RADAR

Track Real-Time Merchandising / Commerce Signals & Market Shifts

Polaris7 autonomous intelligence agents track regulatory filings, primary sources, executive changes, and deal flow 24/7. Create your free Explorer workspace to monitor these entities.

Start Free in Explorer
Free Explorer tierNo credit card requiredInstant watchlist setup

Key Takeaways & Evidence Grounding

  • Merch my Day was founded in 2023 by Luca Montesinos (Montez) and Justus Stroetmann.
  • Revenue grew by nearly 400% from 2024 to 2025 and almost doubled from 2025 to 2026.
  • The startup produces at more than 12 locations worldwide and has a 3,000 sqm logistics site in Bielefeld.
  • Clients include musicians Nico Santos, Sarah Connor, Elif, Apache 207 and football club Arminia Bielefeld.
  • The company is fully self-financed; Montesinos invested a seven-figure amount from his own wealth.

Ontology Mapping & Concepts

Primary Source Grounding & Direct Attribution
Direct Origin Attribution
Primary Reporting: Gründerszene (DACH Startups & Scaleups)•Published: Oct 2, 2026
Original Coverage Title: “Dieses Gründer-Duo will das Merch-Business umkrempeln”

Track Real-Time Market Signals & Shifts

Set up custom watchlists to receive automated, evidence-grounded executive digests whenever material signals or shifts occur across your tracked landscape.