Startup Businesses

From APIs to Agents: Control, Identity, and What Breaks Along the Way Most of what we've built over the last \~15–20 years assumes a static frame of reference: Apps talk to services over APIs. You know who's calling what, you can stick a gateway in front of it, apply some policy, and move on. Agents don't really fit that model. They don't just call an API and return. They decide what to do, call a tool, look at the result, call something else, maybe involve another agent, loop through an LLM a few times… all the while, doing onbehalf of the user, with permissions that aren't always obvious. It's not always clear who is actually doing something. It's not obvious what the full execution path looks like. And the access control models we're used to — user → service, service → service fall part. We'll dig into what actually breaks when you start wiring agents into real systems, especially around identity and access control. Things like: \- how \(or if\) you assign identity to an agent \- what it means for an agent to act "on behalf of" someone \- how you enforce policy when the flow isn't predefined \- and how you get any kind of visibility into what just happened We'll also look at some of the patterns starting to emerge: agents talking to other agents, tools being invoked dynamically, and why a mediation layer (ie, agentgateway) must be built from the ground up with this in mind. \-\-\-\-\-\- Speaker \-\-\-\-\-\- Christian Posta (Solo.io) Christian is a globally recognized expert in cloud-native architecture, service mesh, and distributed systems. As Global Field CTO at Solo.io, he works with enterprises to design and implement next-generation platforms—and is now at the forefront of AI-native infrastructure and agent systems. \-\-\-\-\-\- Who should attend? \-\-\-\-\-\- This meetup is for people who are building or thinking about the next generation of enterprise systems: Platform engineers and architects, Cloud-native practitioners, AI engineers working with agents and LLMs, Anyone exploring how AI changes system design \-\-\-\-\-\- How to join \-\-\-\-\-\-\- This time, the meetup will be in the premises of Riverty in Kantstrasse 17, Berlin (4th Floor of Living Berlin mall). Riverty will provide pizza and drinks. Please bring your ID as you will need to sign an NDA (we are a regulated entity).

**This is 100% non-profit. The 15€ sign up fee for everyone is only to minimize last-minute cancellations. The total sum goes to a bar-tap that everyone can use to order drinks until the amount is used up. ‼️NO REFUNDS‼️** **‼️Please don't just show up without RSVPing here and paying the 15€. We have a separate room that has limited capacity and a specific drinks agreement with the bar - so splitting up the bill won't become a mess.‼️** **Small update on how your money get's used from May 2024 onwards:** As of this month, meetup.com has started charging me 34€ instead of 16€ per month. I've decided to distribute this fee evenly among all us participants every month. Example: In the last 12 meetups, the average number of attendees was 17. With 17 attendees I would effectively collect 230€ (after fees). I would now substract 34€ leaving us with 196€ that go to the bar. 15% get's tipped to the wait staff, in this case 30€, leaving us with 166€ effectively to order drinks. Hope everyone is cool with this system. :) Website: https://www.pberg-engineers.me WhatsApp groups: Please come and join us on WhatsApp! \- "PBerg Engineers \- NEWS" \- Only organizers can post announcements or polls \-\> https://chat\.whatsapp\.com/EqMJMmlCZO6LOOfAoG4yTj \- "PBerg Engineers \- DISCUSS" \- Everyone can post \-\> https://chat\.whatsapp\.com/LPuo76J83gF6IZMLUcM4u2 Please join those groups now if you're interested. :) All skill/education-levels welcome! :) Lightning Talks: \- TBD We'll also have a brief "Jobs: Lost & Found section". **Location:** From the street you will have to enter the right hand Cafe Chagall (yes, there are 2). Then, you go upstairs and our private room is in the far end corner of the building. We are a relaxed, non-formal meetup of like-minded software engineers who want to always keep learning and want to meet in physical reality over a drink or two. Prenzlauer Berg, Berlin is home to some of the most talented software engineers in the world, and every month, they come together for an exciting knowledge sharing meetup. This meetup is a chance for attendees to learn from each other, share their experiences, and gain new insights into the world of software engineering. The atmosphere is friendly and welcoming, and the discussions are always engaging and thought-provoking. Whether you're a seasoned veteran or just starting out in your career, you'll find something valuable at this meetup. Don't miss out on your chance to connect with like-minded professionals and advance your knowledge of software engineering. Sign up for the next event now! **Website:** https://www.pberg-engineers.me **WhatsApp groups:** Please come and join us on WhatsApp! \- "PBerg Engineers \- NEWS" \- Only organizers can post announcements or polls \-\> [https://chat.whatsapp.com/EqMJMmlCZO6LOOfAoG4yTj](https://chat.whatsapp.com/EqMJMmlCZO6LOOfAoG4yTj) \- "PBerg Engineers \- DISCUSS" \- Everyone can post \-\> [https://chat.whatsapp.com/LPuo76J83gF6IZMLUcM4u2](https://chat.whatsapp.com/LPuo76J83gF6IZMLUcM4u2) Please join those groups now if you're interested. :)

Get your creativity flowing with our Bento Cakes Workshop, where you'll learn how to create the cutest, trendiest mini cakes from scratch! Perfect for gifting or indulging in a personal treat, these Korean-inspired bento cakes are all about charm, color, and fun. In this hands-on class, you’ll: ✨ Learn the basics of mini cake layering and frosting 🧁 Practice piping and decorating techniques 🎨 Personalize your cake with messages, designs, and pastel colors No baking experience? No problem! All materials are provided, and our instructor will guide you every step of the way. Come solo or bring a friend—this workshop is sweet, creative, and oh-so-Instagrammable! 💖 **Les Amis** is a women-only community of friendly souls. We provide access to hundreds of experiences that explore your passions and connect you with other event participants. **Check our website to learn more, and apply to join our community and events**: [lesamis.cc/apply](https://www.lesamis.cc/apply)

**A place to meet sound, without maps** Facilitated by **Vesti Gium (they/them)** Everyone enters as they are. No score. No threshold of skill. We follow the room, moment by moment— listening, nudging, letting the music find itself. A breath, a shoelace, a laugh, a footstep— each carries weight. Silence is welcomed; noise is celebrated. There are no wrong directions here. We practise a listening that reaches outward and inward: to ourselves, to one another, to the space we shape together. That is where the music begins. * 🌀 Bring a voice, an object, an instrument, a movement—or nothing at all. * ✨ **Priority given to FLINTA folks and people with migration backgrounds.** * 🎧 No experience needed. Curiosity is enough. * 📍 Berlin – \[theodorstraße 5,12099] * 🗓 Every Wednesday 17: 30 * 📬 DM or email **[vestigium.impro@gmail.com](mailto:vestigium.impro@gmail.com)** to join Come make sound—come be heard.

Soundground Vol. II A FLINTA\* & friends gathering for free improvisation, deep listening, experimentation, and collective sound-making. Bring an instrument, bring an object, bring a noise, or simply bring yourself. No previous musical experience is needed. Wednesday 03/06 Doors open: 18:30 Location (near U6 Tempelhof) To reserve a spot, simply reply to this via email vestigium.impro@gmail.com donation based. A place to meet sound, without maps.

**⚠️ IMPORTANT: REGISTRATION MANDATORY ⚠️** Registration on **Luma** is **REQUIRED** to attend this event. **Link: https://luma.com/7zfk3orp?utm_source=meetup** Your registration is subject to host approval. You must complete the registration process on lu.ma to receive the full event location details and confirmation of your attendance. **Please note: Without approved registration on Luma, you will NOT be able to access the event location or attend.** We are excited to host a **BLISS x juna.ai workshop** featuring **Dr. Nima Siboni (senior RL Engineer)**, who will guide us through an interactive session on algorithm discovery with LLMs. **​​​ Title: The Heuristic Scientist: Open-Ended Algorithm Discovery with LLMs** **📅 Date: 03.06.2026** **🕕 Time: 18:00** 📍 Location: TU Berlin Marchstrasse 23 [Room 0.011] ​​​The session will last around 2 hours, followed by a networking session with juna.ai and fellow AI enthusiasts (and free pizza!🍕). Bring your laptop! **​Abstract:** Large language models are increasingly useful not only for writing code, but for exploring the space of possible algorithms. In this hands-on workshop, we will look at how LLMs can act as “heuristic scientists”: generating candidate strategies, turning ideas into executable code, testing them against concrete objectives, and refining them through feedback. The workshop centers on the general discovery loop behind LLM-assisted heuristic generation. Participants will learn how to structure problems for algorithm discovery, prompt models to propose interpretable heuristics, evaluate those heuristics with simulations or benchmarks, and use the results to guide further search. We will also discuss when simple prompting is enough, when training or fine-tuning may help, and how to keep generated heuristics understandable, testable, and auditable. ​By the end of the session, participants will have built a small discovery loop of their own and will understand the practical trade-offs involved in using LLMs for open-ended algorithm discovery: creativity versus control, exploration versus verification, and automation versus human judgment. ​ **⚡ FINAL REMINDER ⚡** **You MUST register and be approved on Luma to attend. The event location will only be visible after your registration is confirmed by the host. Link: https://luma.com/7zfk3orp?utm_source=meetup** *** We are **BLISS e.V.**, Berlin’s AI community connecting like-minded individuals passionate about machine learning and data science. Our **BLISS Workshops** connect **students and young professionals with industry partners**, offering an inside look into **how machine learning is applied in real-world settings** \- from research and development to deployment\. ​ ​​​BLISS Website:[ https://bliss.berlin](https://bliss.berlin/?utm_source=luma) ​​​BLISS Youtube:[ https://www.youtube.com/@bliss.ev.berlin](https://www.youtube.com/@bliss.ev.berlin?utm_source=luma)

Ready to captivate any audience, nail your next presentation, or give feedback that people actually enjoy hearing? Then come check out **First Berlin Toastmasters**, Berlin's oldest public speaking club. We're a warm, supportive, and international community here to learn, practice, and grow together. Our meetings are full of laughter, and every voice adds something special. The stage is a safe space, so come by, listen, and see how much fun communication can be. Please, be our guest! The most important people in the room aren't the speakers, they're the audience. Your presence, energy, and reactions are what bring the evening to life. **When** 🗓️ Every **1st & 3rd Wednesday** of the month 🕒 Doors open at **6:30 PM** \- Event starts at **6:45 PM** sharp **Where** St. Lukas-Kirche (near Anhalter Bahnhof) Bernburger Straße 4-5 10963 Berlin 📍 [https://goo.gl/maps/AhDfDmVndqbC9A1C9](https://goo.gl/maps/AhDfDmVndqbC9A1C9) You’ll find us in the **Gemeindesaal** on the first floor of the building to the right of the church. We look forward to welcoming you! Best wishes, John aka Yevgen Schweden - VP Public Relations Important note: We take pictures and clips during our meetings for promotional use only. By attending our meetings, you agree to that by default. If you don´t want to be on any picture, please let the VP PR or another representative from the board know (for example the president.)

⚖️ Legal in Business: Essentials for Founders Building a startup is exciting — but without the right legal foundation, even the best ideas can face serious challenges. Join us for a practical and founder-friendly session where we break down the most important legal aspects every startup should understand. No legal jargon. No theory overload. Just clear, actionable insights you can actually use. We’re excited to host the event together with our partners at [FARBERG Rechtsanwälte](https://www.farberg.legal/?utm_source=chatgpt.com). The session will be led by Oliver Zitzelsberger and Faruk Gregor Drovs, who specialize in corporate law, venture capital, startup financing, M&A, founder agreements, and legal structures for growing businesses. 💡 What will be covered: ✔️ Choosing the Right Legal Structure • UG vs GmbH vs Sole Proprietorship • When to choose each • Key pros & cons ✔️ Common Legal Mistakes Founders Make • No contracts between founders • Missing terms & conditions / privacy policy • Ignoring legal structure early • Using content without proper rights ✔️ Co-Founder Agreements • Why they matter • What should be included • What happens if someone leaves 🎯 Why Join? Because legal mistakes are often invisible at the beginning — but costly later. This session will help you: ✔️ avoid common pitfalls ✔️ understand what really matters ✔️ build your startup on a stronger foundation 📅 June 7, 2026 ⏰ 13:00 – 15:30 📍 The Social Hub LIMITED SPOTS AVAILABLE!

**Join us for a hands-on AI prototyping afternoon at The Delta Campus.** Bring your laptop, bring an idea - and spend a few hours **building a first prototype together with other founders**, builders, and curious **AI users**. We’ll give a short intro into **vibe coding and AI prototyping**: which tools to use, how to structure your idea, how to prompt better, and how to get unstuck. After that, it’s mostly **hands-on building**, testing, troubleshooting, and **exchanging ideas in the room**. This event is also a **warm-up for our next AI Accelerator cohort starting in September**. We’ll briefly share what the program is about, who it is for, and how it helps startups & small businesses use AI in their daily work. **Details** 📍 Location: The Delta Campus 📅 Date: 4 June ⏰ Time: 10:00–13:00 💻 Bring: Your laptop + ideally one idea you want to prototype **Agenda** **10:00 – Welcome & short intro // AI Accelerator Cohort 2 info** AI prototyping, vibe coding, tools, prompts, and setup. **10:30 – Build session** Work on your own idea with guidance, troubleshooting, and feedback. **12:30 – Optional sharing & exchange** Show what you built, ask questions, or get feedback. Come with an idea. Leave with a first version. 🚀

Network and get inspired with Entrepreneurs from diverse backgrounds every first Friday of the month (except January). Agenda: Boardingtime: 18:00 -18:30 I) Intro-Round: Everybody 1-2 minutes + business of the month: Smart Coop Germany with Magdalena Ziomek Pause II) Main Topic with Jarun Jain* Pause III) Final-Round * AI has changed the rules. You don’t need months of work and a team to deploy a product. With the right tools and approach you can move from idea to live product faster than ever. In this hands-on session Varun Jain will walk you through this exact workflow using modern ai-tools. What we will cover: * Define your business idea * Structure the project * Write promts for vibe coding platforms * Develope the product * Deploy the Product * Tools to build and grow Tools we will use: ChatGTP, OpenAI API, Gemini API, Codex, Gemini Antigravity, VS-Code and GitHub Copilot. If you have an idea you want to turn into a product, this event is for your. No technical skills are required. Important notice: please bring your laptop! **** About Varun Jain: Varun is a product builder with 15 years of experience across startups in multiple countries. He is open to collaborations in consulting, mentoring and community events. About Business of the month in June: Smart Coop is a model, where 1.300 freelancers and remote workers from 50 different countries are keeping their freedom and independance while having the benefits of beeing employed in Germany. **** Event is free if charge! Please bring some wine and snacks instead- and this time also your laptop! 🙃

We are proud to continue this free flow meet & greet session in the Bar of the social hub with guided networking and great people from different angles of the Berlin startup ecosystem! If you have a startup idea or a growing company and you want to expand your network in Berlin, then join us for the in-person 'Founder Meet & Greet' event. At this informal networking event, you can connect with other early-stage entrepreneurs, startup mentors, and advisors from the Founder Institute Berlin network. Socialize over drinks with potential co-founders, advisors, mentors and partners. Most of all, get away from the computer and have fun! ❯ **Your hosts of the day:** * Rikke Klitskov (Co-Director @ Founder Institute Berlin) * Kai Malkwitz (Impact Director @ Founder Institute Germany) * Mats Kuuskema (Country Director Germany @e-Residency Estonia) ❯ **Who should Attend?** * Anyone interested in entrepreneurship * Anyone who has a pre-seed tech company or a startup idea * Anyone interested in joining a startup accelerator * Anyone who is looking for a cofounder or would want to join a startup as a cofounder ❯ **What is the Agenda?** * (Guided) Networking, Socializing and Drinks **❯❯ This is a live offline event, to be sure to receive our updates be sure to RSVP at** [https://FI.co/e/397980/meetup](https://FI.co/e/397980/meetup)**!** To join our upcoming Founder Institute program in October 2026, you can apply here: [https://fi.co/Germany](https://fi.co/Germany)**.** For more information about the investors, accelerators, incubators, and [tech events available in Berlin](https://fi.co/events/berlin), see our [list of Startup Resources](https://fi.co/startup-resources). **About Estonia e-Residency** Launched in 2014, e-⁠Residency provides entrepreneurs from around the world secure digital access to Estonia's advanced e-services and transparent business environment. Today, the programme helps over 110,000 people and their businesses operate location independently. [Here's how they do it and how they got here](https://www.e-resident.gov.ee/). **About Founder Institute** The [Founder Institute](https://fi.co/berlin) is the world’s most proven network to turn ideas into fundable startups, and startups into global businesses. Since 2009, our structured accelerator programs have helped over 7,000 entrepreneurs raise over $1.75BN in funding. Based in Silicon Valley and with chapters across 100 countries, our mission is to empower communities of talented and motivated people to build impactful technology companies worldwide.

Lasst uns wieder austauschen im Cielo Restaurant diesen Samstag um 18 Uhr :) Ich freue mich auf euch :) Lenbachstraße 7, 10245 Berlin

​**Founders Running Club** (FRC) brings founders, investors, tech, creative people and startup enthusiasts together for weekly easy runs and networking. ​Every Saturday morning we gather together and run through Tiergarten. Join us in one of these 3 routes: ​\* **5K** – for new & beginner runners ​\* **7K** – for regular runners ​\* **11K** – for more experienced runners **OBS**: We are usually around 30 people, between regulars and newcomers (from here and from Luma), so don't be scared if there are not a lot of people confirmed on the event here. The pace is chill and conversational, around **6:30**. On the 7k and 11k some people like to push a bit more, but no one gets left behind. We finish with a nice coffee and amazing conversations. The vibe is always great. Pets, friends, family, are welcome. More about **FRC**: ​🗓️ Launched in San Francisco, July 16, 2022 🌍 Now in 50+ cities 📅 Running + Networking events + Community ​**Join the community** [http://foundersrc.com/chats](http://foundersrc.com/chats?utm_source=luma) Berlin Instagram [http://instagram.com/frcberlin](http://instagram.com/frcberlin?utm_source=luma) ​ **Global FRC**: Instagram [http://instagram.com/foundersrc/](http://instagram.com/foundersrc/?utm_source=luma) LinkedIn [http://linkedin.com/company/foundersrc/](http://linkedin.com/company/foundersrc/?utm_source=luma) Strava [http://strava.com/clubs/foundersRC](http://strava.com/clubs/foundersRC?utm_source=luma) Website [http://foundersrc.com/](http://foundersrc.com/?utm_source=luma)

Please reserve your spot by registering on the below link : https://www.eventbrite.com/e/join-biggest-community-investors-founders-berlin-online-tickets-1988380688164?aff=meetup QUESTIONS ? Pls Reach out to; Rose - +971528033410 ( WhatsApp Only)

**PLEASE BUY TICKETS THROUGH EVENTBRITE. RSVP THROUGH MEETUP IS NOT A TICKET PURCHASE CONFIRMATION.** Strive welcomes you to 'General Business Networking', Columbus' hottest networking event! We are set in the perfect central location in Downtown for all to join. Are you interested in business? Want to elevate your career? Meet Consultants, Analysts of all types, Bankers, Software Engineers, Entrepreneurs, and more who are active in the space or are eager to get started. **\*\*This will be a multi-vertical event\*\*** **There will be professionals with backgrounds in the arts, finance, tech, real estate, healthcare, and more. Come with an open mind, and leave with connections that wouldn't be possible otherwise!** Pack some business cards and come with an open mind! Meet your future business partners, employers, coworkers, investors, and friends. You don't want to miss this opportunity to expand your network and create a brighter future. We will have a space for our event to check-in. The event will go from 6:00 PM - 8:00 PM (feel free to come at any point in this timeframe). Name tags will be provided. Business casual dress code. Job fair attire. **Remember, it's not who you know, it's who you meet tomorrow!** We look forward to meeting you at the event! Sincerely, Strive Networking Team *Refund requests are permitted up to 24 hours after purchase, so long as we are not within 48 hours before the event start time. Refunds will be made in full and repaid to your method of payment. Note that we are unable to reimburse PayPal fees.* *Disclaimer: By attending Strive Networking events you agree to photos/videos taken during the event being used to promote future events.*

**[Official registration site --> https://luma.com/du41v0tg](https://luma.com/du41v0tg)** **[You must register and will receive an approval/confirmation](https://luma.com/du41v0tg).** We’re taking HustleBus from Columbus to **Black Tech Week in Cincinnati** for a high-signal, founder-only experience focused on community, collaboration, and momentum. ​ **Why Black Tech Week?** ​Black Tech Week is one of the best rooms in Ohio to meet builders, operators, investors, and ecosystem leaders. Expect meaningful connections, great energy, and programming that spotlights founders and what’s being built. ​ What’s included (thank you to our sponsors Huntington Bank, Burton D Morgan Foundation, and Lightship Foundation) * ​Founder-only HustleBus transportation (free) * ​**Black Tech Week ticket comped** for HustleBus participants (must register with code) * And much more! There are limited seats on the Hustle Bus, so if this sounds like something you want to get in on, register today * Learn more and Register here --> [https://luma.com/du41v0tg](https://luma.com/du41v0tg)

Monthly working lunch for Columbus business owners. One specific topic, one to three actions you can run this week. You can be the best at what you do and still be invisible. If local buyers cannot find you, the phone does not ring. Marketing Monday Lunch + Learn is a monthly working lunch for Columbus business owners focused on building relationships, local networking, and local marketing. Every kind of local business welcome. No pitch round, no pressure, no upsell. **This month** Most local businesses pick one or two places to be visible and call it good. The result is inconsistent calls and a feeling that marketing is not working. We will walk through the three places every local business needs to show up, plus the fourth place most owners ignore that quietly produces the warmest leads. **What to expect** Doors open at noon. Order lunch and drinks at the cafe counter or bring your own. You get real conversation with other local owners and a focused marketing lesson. You leave knowing people and with one to three actions to run that week. The room is reserved through 1:30 PM. **Who this is for** Any local business owner who wants clearer marketing direction and real local relationships. Service businesses, retail, home services, professional services, online owners building local presence, anyone serious about being part of the Columbus business community. **Not the right fit if** You are here to pitch the room or recruit for an MLM. **Details** * Second Monday of every month * 12:00 to 1:30 PM * Good Cafe Easton, 4400 Easton Commons, Ste 150, Columbus, OH 43219 * Order lunch and drinks at the counter when you arrive * Free to attend, RSVP required, space is limited **About the host** Rita Suzanne is a local marketing strategist and the founder of Local Marketing Method. She runs Visibility is Profitability, the membership where local business owners build the system that keeps their phone ringing. Learn more at learnlocalmarketing.com. Register here: [https://www.eventbrite.com/e/1989964540509?aff=oddtdtcreator](https://www.eventbrite.com/e/1989964540509?aff=oddtdtcreator)

Bring your business cards and network in person with other business professionals! Gold Star Referral Clubs is one of the most established professional networking organizations in the country, with multiple groups in central Ohio. Join us!

Join us for lunch and meet our very successful group. We are each others sales team...always looking for referrals for our members. If you are looking for new clients, let us help you out! Bring your business cards and brochures to share with us. We have a speaker each week so that we can learn about their business. Because we have only one member per business, we have many of the spots filled. However, we are specifically looking for an estate attorney, a handyman/electrician, and an event planner. We have referrals for you! All visitors are welcome. Any questions contact [pmarchio@farmersagent.com](mailto:pmarchio@farmersagent.com)

Please reserve your spot by registering on the below link : **Reserve** https://www.eventbrite.com/e/join-biggest-community-investors-founders-columbus-online-tickets-1988563717610?aff=meetup **QUESTIONS ?** Pls Reach out to; Ridhi - +971504724873 ( WhatsApp Only)

NFT's are here to stay folks! This is a group for like minded people interested in understanding, leveraging, using, creating for, profiting from, trading too i suppose, NFT's.. everything around them, complexity, fear and exploits, best practices and more. **PLUS** This group will talk AI ART tools, techniques, artists, video, audio, prototypes and more in the AI assisted production space- ART specifically, but we can get into any aspect of some of the cooler things happening in AI in general.