Fintech Meetups Berlin

Berlin Ethereum Meetup

Welcome to the Berlin Ethereum Meetups! Join us as we explore technical and non-technical topics around Ethereum, FOSS technology, privacy, security, censorship resistance, self-sovereignty, and public goods. You can connect with others and find ways to collaborate on building a more decentralized future. Our meetups are open to all - from those new to Ethereum to long-standing community members and developers. 🗓️ **Agenda** *(subject to change)* 🕕 6:30 - 6:45 pm - Arrivals 🕡 6:45 - 7:00 pm - Ecosystem & Community Updates by Eniko (Ethereum Foundation) 🕡 7:00 - 7:30 pm - Beyond L2s: Exploring the Wider Work of L2BEAT by Sergey Shemyakov (L2BEAT) 🕖 7:30 pm - 9:00 pm - Open discussions and community time The event is sponsored by [Gnosis](https://www.gnosis.io/). The talks will be recorded and uploaded to our [Youtube channel](https://www.youtube.com/@ethereumberlin). Subscribe to stay up to date! Apply to speak at our future meetups: [Speaker Application](https://forms.gle/5y9Y5ywZC7pSEqpV9)! To learn more about Ethereum, go to [ethereum.org](http://ethereum.org/) (content available in many different languages).

Nostrhackday

🚀 Nostrhackday Berlin: Build the Future! 🚀 Join us in Berlin on Tuesday, September 29th, 2026, 10:00–18:30 at c-base, Rungestraße 20, 10179 Berlin — two days before BTC++ and the day before the Cashu hackday. A quick apology: we announced a date for this year prematurely last year, before it was confirmed. It's properly locked in now — sorry for the confusion. What to expect: * Show & Tell: Introduce a project you're passionate about. * Innovate & Collaborate: Team up with others and hack on Nostr. * Demo Your Work: At the end of the day, everyone gets a few minutes to demo what they've built. Join us! [https://nostrhackday.orangesync.tech/](https://nostrhackday.orangesync.tech/) [#nostr](https://primal.net/search/%23nostr) [#berlin](https://primal.net/search/%23berlin) [#hackday](https://primal.net/search/%23hackday)

Bitcoin am Holzmarkt (Stammtisch)

English, see below. *** Willkommen beim Bitcoin Meet-up im Café Holzmarktperle (Holzmarktstraße 25). Die Berliner Community kann einfach nicht genug davon bekommen über Bitcoin zu reden. :) Deshalb bieten wir dieses Meet-up als weitere Option neben dem etablierten “Berliner Bitcoin-Stammtisch @ Friedel Richter” an. Jeder ist willkommen - Bitcoin-Anfänger, Enthusiasten, etc. Wir freuen uns auf den gemeinsamen Austausch mit anderen Plebs in lockerer Runde und gemütlicher Atmosphäre und beantworten auch gerne eure Fragen. Natürlich könnt ihr im Café mit Bitcoin ₿ / Lightning ⚡bezahlen. Dies ist der richtige Ort für Menschen, die glauben, dass Bitcoin die Welt verändern kann und Teil der nächsten großen Revolution in der Finanzwelt sein wird. *** Welcome to the Bitcoin meet-up at Café Holzmarktperle (Holzmarktstraße 25, Berlin). Since we can’t get enough of talking Bitcoin we are offering this meet-up as a another option in addition to the established Berliner Bitcoin-Stammtisch @ Friedel Richter. Everyone is welcome - Bitcoin beginners, enthusiasts, … you name it. We are always happy to meet with other plebs, teach, talk and help! Payment in Bitcoin ₿ / Lightning ⚡accepted! This is the place to be for people who believe that Bitcoin will rock the world and will be part of the next big revolution in the financial world.

Bitcoin am Holzmarkt (Stammtisch)

English, see below. *** Willkommen beim Bitcoin Meet-up im Café Holzmarktperle (Holzmarktstraße 25). Die Berliner Community kann einfach nicht genug davon bekommen über Bitcoin zu reden. :) Deshalb bieten wir dieses Meet-up als weitere Option neben dem etablierten “Berliner Bitcoin-Stammtisch @ Friedel Richter” an. Jeder ist willkommen - Bitcoin-Anfänger, Enthusiasten, etc. Wir freuen uns auf den gemeinsamen Austausch mit anderen Plebs in lockerer Runde und gemütlicher Atmosphäre und beantworten auch gerne eure Fragen. Natürlich könnt ihr im Café mit Bitcoin ₿ / Lightning ⚡bezahlen. Dies ist der richtige Ort für Menschen, die glauben, dass Bitcoin die Welt verändern kann und Teil der nächsten großen Revolution in der Finanzwelt sein wird. *** Welcome to the Bitcoin meet-up at Café Holzmarktperle (Holzmarktstraße 25, Berlin). Since we can’t get enough of talking Bitcoin we are offering this meet-up as a another option in addition to the established Berliner Bitcoin-Stammtisch @ Friedel Richter. Everyone is welcome - Bitcoin beginners, enthusiasts, … you name it. We are always happy to meet with other plebs, teach, talk and help! Payment in Bitcoin ₿ / Lightning ⚡accepted! This is the place to be for people who believe that Bitcoin will rock the world and will be part of the next big revolution in the financial world.

Sunday Tech Coffee Meetup

Welcome to Sunday Tech Coffee. This is a **networking** event for those in the tech industry in Berlin. We are usually inside and to the right. Ask the barista/bartender if you can't find us.

BitDevs Bitcoin Socratic Seminar Berlin

**BitDevs Bitcoin Socratic Seminar Berlin @ c-base Raumstation** Join us for our monthly interactive **[Bitcoin Socratic Seminar](https://bitdevs.berlin)** in Berlin! We’ll start with pizza and beer (sponsored by [Ordimint.com](https://ordimint.com)), followed by deep-dive discussions on the most interesting *technical* developments in Bitcoin from the past month. Participation by everyone is highly encouraged! Our goal is to foster lively discussion, knowledge sharing, and debate. In the weeks leading up to the event, participants gather topics such as: * New research papers * New BIPs and BOLTs * Network statistics * Technical blog posts * Mailing list and Delving Bitcoin threads * Pull requests and updates from key repos (Bitcoin Core, LND, Core Lightning, Eclair, BDK, rust-bitcoin, LDK, Electrum, …) Each topic is briefly introduced by our moderators and then discussed before moving on. The full list of links will be published at [bitdevs.berlin](https://bitdevs.berlin) 1–2 days before the event — please review them in advance to get the most out of the discussion. **Important details:** * This event is highly technical — best suited for those with a solid grasp of Bitcoin internals. Curious newcomers are always very welcome, but expect in-depth conversations (see the former topics at [bitdevs.berlin](https://bitdevs.berlin)). * Chatham House Rule applies: you may share what was discussed, but not who said it. No livestream, no photos, no recordings. * The evening begins with food and networking; people often stay after the seminar to keep talking. **Co-hosted by:** * [Felix](https://x.com/FelixWeis) * [Freerk](https://x.com/freerko) * [Fabian](https://x.com/fjahr) For background on the idea of BitDevs Socratic Seminars, see [this article](https://bitcoinmagazine.com/articles/op-ed-want-to-learn-about-bitcoin-try-a-local-socratic-seminar).

Tennis : Intermediate level

**Welcome to Berlin's international training community! 🎾** **We offer professional training throughout the season, whether you're new to tennis and looking for a great start or a seasoned player seeking to enhance your skills. Our training programme features flexible booking sessions that mix learning with competition.** **Our aim is to equip players for the game whether you're playing for fun or aiming for Grand Slam success 😎**

TOKEN BREAK 10.000 STEPS. OFFLINE.

# TOKEN BREAK **Berlin’s walk & talk for AI builders, vibe coders, and the curious. No laptops. No pitches. Just 10,000 steps and real conversation.** ## THE PROBLEM We spend more time talking to AI than talking with people about what we’re building with it. Think about your week. You’ve spent hours prompting, debugging, and shipping with AI. You may have had a longer conversation with a chatbot than with a friend. Your back is stiff. Your eyes are tired. And even while working on something genuinely exciting, it can feel strangely isolating. We built agents to save time. Then we filled the saved hours with more screen time. The AI community debates the future of work, intelligence, and human connection—often alone, hunched over a laptop. That’s the contradiction: a technology designed to empower us can easily leave us stationary and disconnected. ## THE SOLUTION Token Break changes the setting. No screens. No pitches. No decks. Just people walking through Berlin and talking about AI—face to face, in real time. We meet and walk 10,000 steps together. Along the way, we talk about what we’re building, what’s working, what isn’t, what excites us, and what worries us. We share recent discoveries, unfinished ideas, and honest opinions about what’s useful and what’s mostly hype. It’s the kind of conversation that usually gets buried in a Slack thread—except now it happens between people, in motion, without another tab open. ## WHY IT WORKS Walking side by side takes the pressure out of networking and makes honest conversations easier. Ideas move differently when your body does. After a week of talking to machines, spending 90 minutes talking with people who share the same curiosity feels refreshingly different. This isn’t anti-AI. It’s pro-human. ## JOIN THE FIRST TOKEN BREAK 📅 **29 September 2026 - 07:00 pm** 📍 **Meeting point:** [will be announced] 🚶 **10,000 steps:** Around 90 minutes 💻 **Zero laptops. Zero pitches.** 👥 **Everyone is welcome:** Builders, vibe coders, tinkerers, skeptics, and the AI-curious 💸 **Free** This is our first walk, so we’re keeping the group small. If you’re tired of talking about AI through a screen, come talk about it while walking through Berlin.-

Berliner Bitcoin-Stammtisch @ Friedel Richter

Welcome to the Berliner Bitcoin-Stammtisch, where we gather to talk about the digital currency that's worth more than gold and sometimes causes more drama than a Netflix series. Join our tribe of business beings, developers, and activists who believe that Bitcoin is the future of money, and El Salvador seems to agree! Here you can learn the ropes of Bitcoin, from buying your first fraction to safely storing your private keys. Our current hangout spot is Friedel Richter on Torstraße, because ROOM77 is closed until the last block is mined. You can pay in Bitcoin ₿ or Lightning ⚡ and enjoy awesome regional food with an international twist. So come join the fun, the food, and the revolution! We're waiting for you. 🍔🍔🍔

International Poly Meetup -- Moderated Discussion Event [Event In Person]

Cybersecurity × AI: Berlin's Builders, Breakers & Backers #5

AI has changed both sides of the security equation at once. Attackers are automating reconnaissance, phishing, and exploit development at a scale that didn't exist two years ago. Defenders are shipping agents that triage alerts, patch code, and hunt threats faster than any SOC team could. And an entirely new attack surface — the models themselves — is being built into products before anyone has agreed on how to secure it. Berlin has quietly become one of Europe's densest clusters of people working on exactly this problem: security founders, ML engineers, red teamers, CISOs, researchers, and the investors funding them. This meetup is an attempt to get them in one room. **⚠️ Attendance is limited and by application only** To be considered, apply here: [https://luma.com/ak9geyg6](https://luma.com/ak9geyg6) We're capping this event at **10 people**. The reason is deliberate: we'd rather have a room where everyone present is actually working in this space than a large room where most people are browsing. Smaller rooms mean better conversations and a much higher chance you meet the two or three people who matter for what you're building. The form takes about two minutes. We'll ask for: * Your name and where you work * What you're building, investing in, or researching * Your role (founder / engineer / security lead / investor / researcher / other) * What you're hoping to get out of the evening We review applications on a rolling basis and confirm attendees by email. Applying early genuinely helps — once we're at capacity we close the list. If you're not selected this time, you'll be first in line for the next one. **What to expect** * [2–3 short talks] from founders and practitioners building at the intersection — offensive AI, AI-native defense tooling, securing LLM applications, compliance under the EU AI Act * An open Q&A where hard questions are welcome * Long-form networking **Who we're looking for** Founders (pre-idea to Series B), security engineers and researchers, red teamers, CISOs and security leads, VCs and angels active in the space, and serious people looking to move into it.

AI Agents at Scale: The Next Operating Model for Technology

**AI Agents at Scale: The Next Operating Model for Technology** As autonomous AI agents evolve beyond simple coding assistants, they are fundamentally shifting how technology organizations operate. We are entering an era where AI can autonomously build, test, and deploy features, pushing the boundaries of traditional software delivery. What happens to your organizational design when you can build features faster than your company and your clients can digest them? How do engineering, IT operations, and security adapt to a workforce augmented by autonomous agents? Expect an evening of great tech topics, networking, drinks, and great exchanges with other CTOs and tech leaders. **Agenda:** * **18:30** – Arrival & Drinks * **19:30** – Panel Discussion * **20:30** – Networking: Connect with fellow tech leaders to share experiences and actionable strategies on talent growth. **The Panel consists of:** \- Alexander Grosse \- Founder/Builder \- ex BCG Digital Ventures\, SoundCloud\, Veo\, Issuu \- Fabian Wesner \- CTO \| Passionate about AI and Entrepreneurship **Note**: We at CTO Roundtable have received a 50% discount voucher for the CTO Summit Berlin on 9 October. Use code: CTO-ROUNDTABLE-BERLIN The CTO Roundtable is organized Christoph Beckmann. If you're interested in sponsoring, hosting, or contributing a topic for upcoming events, please don't hesitate to reach out!