EP#539 - Christian Greis: Sidepreneurship that Solves 80% of Skin Cases Online
January 15, 2026
Co-produced by
Co-produced by
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7:30 - The problem that led Christian to found derma2go
13:27 - Creating a “win-win” hybrid model
20:08 - Building a two-sided marketplace
30:07 - Raising money with discipline
This episode is co-produced with Innosuisse, the Swiss Innovation Agency. Innosuisse supports SMEs, startups, research institutions and other Swiss organisations in their research and development activities. They offer a range of programmes to help you bring your innovative ideas to life. To explore their support offerings and find the right offer for your needs, visit their online guide and take the next step in your innovation journey.
Episode description:
In this episode we speak to Christian Greis, a Dermatologist at University Hospital Zürich and the Founder behind derma2go, a Swiss digital dermatology platform built to help patients get expert skin assessments faster through online photo-based consultations. Christian shares how his path from clinical medicine into entrepreneurship was shaped by real-world demand, and how he built derma2Go while staying close to the medical frontline.
Christian speaks about how derma2go creates a win-win through hybrid care - solving 75–80% of cases online and routing the remainder in-house - and what it takes to shift patient behavior from long waiting lists to digital-first care. Christian also breaks down the realities of operating a two-sided platform in healthcare and why the company pivoted toward a B2B2C model by partnering with hospitals and clinics.
Christian also goes deeper into his founder journey: the trade-offs of solo founding, why sidepreneurship can be a strategic advantage in regulated markets, and what Christian learned from Innosuisse training and coaching. Finally, he shares a pragmatic view on fundraising and why it’s important to stay lean and raise only what you need.
The cover portrait was edited bywww.smartportrait.io.
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