Most Active Speakers 2025
Sessionize proudly presents the list of the most active speakers in the year 2025!
Dr. Neda Maria Kaizumi is a distinguished technology expert at the intersection of AI development, global compliance, and international regulations. With a doctorate in Organizational Behaviour. She combines a rich academic foundation with practical ... Show more
I'm Mahendran Selvakumar, a Cloud Native technologist and Open Source advocate with deep experience in Kubernetes, AWS, and HashiCorp tools and Service Mesh. I'm a HashiCorp Ambassador, Linkerd Ambassador, AWS Community Builder. I organize the AWS We... Show more
Poornima is a .Net developer with over 10 years of experience in .Net. She is passionate about learning new technologies and keeping herself up-to-date with the latest developments in technology. Outside her work, Poornima enjoys music and is undergo... Show more
Peter van den Bos is a Business Intelligence Consultant, speaker, and founder of Dutch BI Geek. For over a decade, he has helped organizations get a better grip on their data – making Power BI not just look good, but also run fast and make sense. Wit... Show more
Reitse began his computer days with GW Basic and quickly followed with Windows 3.11. After that, many computers followed, and, interrupted by human resource and psychology studies, he got into the IT work field around 2007. There, he encountered Orac... Show more
Développeuse et facilitatrice passionnée depuis plus de 7 ans, je vois la tech comme un terrain d’apprentissage continu, où le code, les humains et les processus se rencontrent, et parfois s’entrechoquent, pour produire du sens. Je m’intéresse aux... Show more
Years of experience in software engineering and the team's leading roles combined with his passion for Java made Pasha know all the hidden details in this IT niche. As a Developer Advocate for @Bellsoft, he educates the public on the latest software ... Show more
Shivay Lamba is a software developer specializing in DevOps, Machine Learning and Full Stack Development. He is an Open Source Enthusiast and has been part of various programs like Google Code In and Google Summer of Code as a Mentor and is curre... Show more
Gethyn is a Microsoft Data Platform MVP and consultant helping organisations modernise their data platforms with SQL Server, Azure, Microsoft Fabric, Power BI, and AI. He leads a UK consultancy that supports clients across Europe and North America wi... Show more
Alvin Ashcraft is a veteran developer, author, and community leader with over three decades of industry experience. As a Senior Content Developer at Microsoft, he helps developers build the next generation of intelligent apps using Microsoft Foundry.... Show more
Whitney Lee is a creator and systems thinker who explores how observability, AI, and platform engineering connect across the cloud native ecosystem. She brings humor, depth, and clarity to complex technologies while building original frameworks that ... Show more
Mathias is a data enthusiast with a great passion for the synergy between data analytics and cloud data platforms. As a Senior Director at Inspari he works with building up clients' data capabilities, implementing data platform technologies and a... Show more
A former Java developer that saw the light and embraced Clippy as his digital overlord. Over two decades in the front-end field has taught Lucien how we often reinvent the wheel to accommodate new shiny frameworks. Now, as a Principal Consultant, h... Show more
Anton is an AWS Community Hero and helps companies around the globe build solutions using AWS, and specializes in infrastructure-as-code, DevOps, and reusable infrastructure components. He spends much of his time as an open-source contributor on v... Show more
Deborah Melkin has been working as a database professional with SQL Server for over 20 years. She spends her days helping programmers with all aspects of database design, queries, performance, and deployment. In 2016, she began her blog, Deb the DBA.... Show more
I am an a Microsoft MVP and workplace architect who specializes in Intune and modern workplace solutions for medium to large enterprises. Passionate about learning and sharing knowledge, Speaks at conferences around the world, aiming to deliver sessi... Show more
I'm a Microsoft MVP and Microsoft Endpoint & Security Specialist with a strong focus on Intune, Windows 365, and Microsoft Security. I love helping organizations improve security, automate processes, and make device management more efficient. As a... Show more
Je suis CTO pour Devensys Cybersecurity et je travaille principalement sur les solutions de sécurité de Microsoft. Je suis CISSP, MVP SIEM & XDR et MCT. J'ai aussi passé 25 ans chez Microsoft. Show more
Martin Rövekamp embarked on his career as a Communication Consultant, specializing in solutions such as Learning Terminals and Intranets. In 2012, he transitioned to SharePoint Consulting, focusing on Collaboration and Intranets. Since April 2024... Show more
Osita Ifezue is a researcher, international keynote speaker, and storytelling strategist. He is the founder of Njiko Storytelling, with over 25 years of experience training individuals and developing storytelling strategies. He has created the Storyb... Show more
Michelle Sandford
Microsoft Developer Engagement Lead Asia | Tedx Speaker | Dev Community Advocate | MCT | New Breakpoint Host | She Codes Mentor | User Group Host | Hackathon Judge | Open Sourcerer
Michelle Sandford is a Developer Engagement Leader who writes code, builds with GitHub and Azure AI, and learns out loud. She likes sharing what’s useful (and what isn’t), and believes shipping is better than talking about it: - A community builde... Show more
Andrew Connell is a full-stack developer who focuses on Microsoft Azure & Microsoft 365. He's a 21-year recipient of Microsoft's MVP award and has helped thousands of developers through the various courses he's authored & taught. Whether it's an intr... Show more
Thomas "Tom" Martens is a Microsoft Data Platform MVP and Solution Architect at Munich Re. With over 25 years of experience delivering Business Intelligence, Data Warehousing, and Analytics solutions, Tom specializes in helping organizations tackle a... Show more
I am a Data Solution Architect with a strong background in Microsoft technologies, specializing in data architecture, data engineering, and DevOps. Over the years, I have worked extensively with various Microsoft ERP systems, and in recent years, I h... Show more
Imma is a Staff Developer Advocate at Grafana Labs, passionate about simplifying Observability, OpenTelemetry, and Cloud-Native technologies. In her past life, she worked as a consultant, trainer, and support engineer at @elastic, and was a proud org... Show more
Marius Sandbu is a Cloud Evangelist for Sopra Steria in Norway. With some undiagnosed AHDH and new shiny object syndrome, he tends to get drawn to new cool technology. The current buzz is Generative AI. Experienced within * Public Cloud (Azure,... Show more
Lian always wanted to save the world. After leaving law school, she decided to work with computers instead. While in Web Dev, she started attending tech events, and soon fell in love with the community. In her roles as Consultant and DevRel, Lian c... Show more
I'm a Senior Software Engineer, Google Developer Expert, Former Microsoft MVP Codemotion Ambassador and GitKraken Ambassador. I love JavaScript and TypeScript. In my free time, I love studying new technologies, improving myself, creating YouTube con... Show more
Clemens Vasters is Lead Architect in Microsoft’s Azure Messaging team that builds and operates a fleet of hyper-scale messaging services, including Event Grid, Service Bus, Event Hubs, Stream Analytics and Microsoft Fabric Eventstreams. Clemens repre... Show more
I'm a Google Developer Expert in Android, available either as a freelancer or through Apptaura, the mobile app development agency I co-founded. I build great apps for people, helping them to build great app businesses. I have a commercial focus and a... 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.