Most Active Speakers 2025
Sessionize proudly presents the list of the most active speakers in the year 2025!
Sam Debruyn is a Microsoft Data Platform MVP and Cloud & Data Platform Architect passionate about modern data platforms such as Microsoft Fabric. In his day-to-day, he designs and implements data platforms that support customers in harvesting the ful... Show more
Giorgio is a Senior Frontend Developer with nearly 8 years of experience building dynamic, user-focused web applications. Specialized in Angular, he also keeps an eye on other frontend frameworks and technologies, always seeking innovative approaches... Show more
Especialista FinOps con 7 años de experiencia liderando implementaciones técnicas, operaciones en la nube (AWS, AZURE, GCP) y gestión de soporte técnico para clientes de diferentes sectores, resolviendo casos técnicos con la colaboración de equipos i... Show more
Davide Cioccia is the founder of DCODX, an ethical hacking, and security training firm focusing on DevSecOps and web3. Speaker and trainer at multiple international conferences like Black Hat, HITB, OWASP AppSec, DevSecCon and DEF CON, he is current... Show more
I've been building websites and apps for various clients for the last 20 years, from running agencies to direct clients, and generally integrating the heck out of systems. I enjoy learning new things and sharing what I've learnt, and I organise the B... Show more
Full-stack enthusiast who loves to learn new tech and trends. I am a Google Developer Expert in Firebase and a LinkedIn Top Voice in Software Development. As an active speaker, I am eager to share my knowledge with the world. Away from my laptop, I e... Show more
Luise is an Azure & Power Platform Architect based in Germany. She is an awarded Microsoft Most Valuable Professional (MVP) working with organizations that want to move beyond digital theatre. Her focus is on AI-enabled solutions that are designed to... Show more
Alfonso Graziano is a AI Tech Lead with a strong background in software engineering, specializing in JavaScript, AI and distributed systems. Currently at Nearform, Alfonso leads engineering teams to deliver impactful projects. Passionate about knowle... Show more
Hugo Guerrero
Driving Innovation in AI & APIs | Developer Advocate | Transforming Connectivity | Speaker on AI, APIs & DX
Hugo Guerrero specializes in building the backbone of the AI era. As a technology leader, he focuses on AI-ready infrastructure, modern API strategy, and scalable event-driven systems. A frequent speaker and advocate for developer ecosystems, Hugo is... Show more
Victor Dantas has over 25 years of experience in digital transformation. Recognized as a Microsoft Most Valuable Professional (MVP), he is part of a select group of over 3,000 global MVPs known for their deep expertise in Microsoft technologies. Vict... Show more
Hands-on Architect, IT Trainer, and Conference Speaker with 20+ years of experience, passionate about building high-quality software, mentoring developers, and sharing knowledge. I've trained over 550 professionals in Architecture, EventStorming, ... Show more
Scott Shearer is a Microsoft 365 evangelist, Microsoft MVP and MCT. Scott has over 35 years' experience in the IT industry implementing Microsoft products and technologies. He has held positions ranging from systems administrator to developer to trai... Show more
Currently a Microsoft Data Platform MVP, Jared has been a data engineering consultant for over a decade, implementing Microsoft products. For more than three decades, he has been honing his skills in theater and other performing arts. As a speaker, J... Show more
Marijn Somers is a distinguished Microsoft 365 consultant with a rich experience spanning over 19 years, dedicated to enhancing organizational efficiency and effectiveness through the strategic implementation and optimization of Microsoft 365 tools a... Show more
Alan Smith is a Cloud & AI Trainer, Mentor & Coach at Active Solution in Stockholm, Sweden. He has a strong hands-on philosophy and focusses on embracing the power and flexibility of cloud computing to deliver engaging and exciting demos and training... Show more
Passionate about all things technological and a programmer for 20 years. He started in the Java enterprise field and arrived in the .NET world as early as version 1.1 of the framework. He works as a freelancer for various companies between Abruzzo ... Show more
Raphael Koellner
Microsoft Regional Director, MVP Office Apps and Services, Windows Insider MVP, Podcaster, Speaker
RAPHAEL KÖLLNER Compliance Manager Raphael Koellner combining the law and the information technology in particular the cloud computing. He worked for universities, Microsoft Germany (DX) and Microsoft Partner as consultant. As CEO for KöllnSe... Show more
20+ Years of experience in data engineering and data reporting space. Have worked with Oracle database, SQL Server, SSIS, Informatica Power Center, Hadoop systems, Qlik and Power BI. Enjoy being in the data space and learning new things. Show more
Ásgeir brings nearly two decades of experience in designing and implementing scalable data platforms using Microsoft technologies. With deep expertise in data architecture, data engineering, and analytics, he helps organizations turn complex data lan... Show more
Melissa Hale is a Power Platform Developer who transitioned from pursuing a PhD in venom and parasite research to finding a more fulfilling career and work-life balance in tech. With a strong background in SharePoint, Power Automate and Canvas Apps, ... Show more
Andreas spent most of his professional life and a career of over 25 years integrating "backend" applications. First inside or between Enterprises and Startups directly, then - "in the cloud". Before that, Andreas dabbled with Virtual Reality in the ... Show more
Chad Green
Sr. Systems Architect at Jasper Engines | Cloud Tech Leader | Microsoft MVP | Speaker & Innovator | USMC Vet | Lego Builder #Tech #Cloud #Community
Chad Green is a visionary Senior Systems Architect at Jasper Engines & Transmissions with over 35 years of expertise in crafting innovative, customer-centric solutions. He is currently leading the migration of legacy systems to cloud-native technolog... Show more
Erland Sommarskog is an independent consultant based in Stockholm. He has worked with SQL Server since 1991. He was first awarded SQL Server MVP in 2001, and he has been re-awarded every year since. His focus is on systems development with the SQL Se... Show more
Dave has been developing database applications for over 30 years. A Microsoft Certified Trainer (MCT) since 2001, he has taught many classes from Intro to Programming to Advanced SharePoint Development. Dave is a seven time Microsoft MVP and runs thr... Show more
Power Platform seasoned (ex) developer with a passion for community and enabling everyone. I am a seasoned professional developer who has experience with Dynamics 365 as well as other CRMs for over 20 years. Microsoft MVP for Business Applications ... Show more
A computer engineer with over 25 years of experience, my profession has fascinated me since I was a child, providing me with wonderful professional and personal experiences 👩💻 I enjoy building teams, sharing with them, growing together, and exe... Show more
William is a CNCF Ambassador and Linkerd Ambassador currently working at Mirantis as Global Field CTO. He’s focused on helping customers designing, building, and running their initiatives on Edge, AI and Platform Engineering. He wore many hats in the... Show more
George is a distributed systems expert and a hands-on engineering leader. He is a Director of Engineering at MongoDB, focusing on implementing cloud native technologies at enterprise scale. He is an Ambassador of the Data on Kubernetes community and ... Show more
Anmol Krishan Sachdeva (greatdevaks) is a seasoned technologist who has spoken at 100+ global conferences, bridging technical deep dives with architectural strategies. He helps organizations navigate emerging technologies for driving key business out... Show more
Cloud enthusiast and technology lover’s. I work with Azure and other cloud, handling the nitty-gritty tech stuff (think of me as a high-flying engineer) and the creative side (designing awesome solutions). On top of that, I spend my time doing works... Show more
Please note that Sessionize is not responsible for the accuracy or validity of the data provided by speakers.
Most Active Speakers 2025
Every year, we put together a list of the most active speakers. This list features the top 3% of speakers who have participated in events using Sessionize during the 2025.
The 3% is calculated from the pool of all speakers that have at least one accepted session in year 2025. We don't include inactive speakers or speakers that had no accepted sessions during the year. There are around 39,000 unique accepted speakers this year, the 3% is 1163. Not all of them have their speaker profiles set as public, and we respect that, so the list doesn't show all of them.
The calculation is based on the number of accepted events, that's the main criteria, but to get more refined results we also look at things like multiple sessions per event, sharing a session with a co-speaker and how big the event is. Number of submissions and declined sessions don't affect the list.
Please note that the count of events and sessions in this list does not represent the number of events and sessions from the year 2025. Instead, it shows the number of events and sessions featured on the speaker's public speaker profile; these numbers have nothing to do with the award itself.