Get to know some of our community members



Founder of StudySmarter

Till is the CTO of the EdTech startup StudySmarter. Together with his team, Till grew the startup to >1mn users. He build a tech team with more than 15 people.



Founder of Betterfront

Michel has 6+ years experience in entrepreneurship (FinTech and B2B SaaS). He has successfully managed a B2B market entry and has gone through a fundraising process (angel & pre-seed invest).


Founder of sphere

Stefanie is the co-founder of sphere. She is open to share her experience on career change (from Investment Banking to entrepreneurship), how to get the Gründungszuschuss, and her domain expertise in M&A / company valuation.


Founder of LocalHeroBox

Sebastian started his B2B corporate gifting business during the Corona pandemic. He can share his experience on idea validation, MVP building and testing. He has domain expertise in logistics.

Invite-only community

Vetted experience

100+ founders

What our founders like about sphere?

Here is what they say.

"Conversation partners are committed. They value my time."


Sebastian K.

"Conversations on sphere are really to-the-point. No chitchat."


Martin K.

"The thought of always having the right person to talk to. When I share, other people share."


Katharina S.

"I can decide what experience I am open to share and how much time per month I want to dedicate."


Daniel G.

"The simplicity. Receiving topic-based requests that match my experience that I can easily reject or accept."


Julian W.

"The "one-off nature" of it. Making an impact in a single call. No extra networking. No long-term commitments."


Eva M.