Most Active Speakers 2025
Sessionize proudly presents the list of the most active speakers in the year 2025!
Mark is Director of the Microsoft Practice at Protiviti and a 10-year Microsoft MVP with more than 25 years of experience designing and developing software solutions. Mark’s daily responsibilities include forging the direction of solution architectur... Show more
Although living on a tropical island, Jochen Kirstätter is a business owner and entrepreneur in different industry sectors. Mainly operating in the development of tailor-made software solutions since more than 20 years, he is also venturing into the ... Show more
As the founder of both (Havens Consulting & Analytic Endeavors) and a Microsoft MVP, Reid is a seasoned professional with a wealth of experience in technology, organizational management, and business analytics. With a Master's Degree in Organizationa... Show more
Arthur (or Art, take your pick) has been a software engineer for 22 years and has worked on things as exciting as analysis software for casinos and things as boring as banking websites. He is an advocate for talking openly about mental health and psy... Show more
John leverages his 10+ years of technical and government leadership experience to help Federal Agencies, and private sector clients utilize Microsoft products to their fullest potential. His certifications with Microsoft products offers customers a h... Show more
Rajendra Ongole
Microsoft Data Platform MVP | Lead BI Engineer @Bosch Digital | Super User Fabric Community | MCT
I am currently working as a BI Lead Specialist within the Engineering and Tech Lead Team at Bosch Digital. Holding more than 8 certifications from Microsoft, such as Microsoft Certified Fabric Analytics Engineer, Power BI Analyst, and Microsoft Certi... Show more
Rudy Ooms works as a Content Creator Manager at Patch My PC as of June 2024. He utilizes his extensive IT experience to create and manage content, particularly focusing on Microsoft Intune, Windows Autopilot, and Endpoint Privilege Management (EPM). ... Show more
Joe Griffin is CEO of proMX UK Limited, a Microsoft Inner Circle partner within the proMX group of companies. As a holder of over 40+ Microsoft technical certifications covering the entire Microsoft cloud stack, including Dynamics 365, Power Platform... Show more
Soy Roberto Navarro, Ingeniero Informático de profesión y por suerte de vocación y MVP en IA, llevo cerca de 20 años trabajando en el sector, y durante los últimos 7-8 dedicándome a tareas relacionadas con el BigData y la IA en Azure, aunque siempre ... Show more
Callum Whyte is a x6 Microsoft MVP and x9 Umbraco MVP specialising in building robust scalable solutions on Azure and the .NET stack, as well as websites with the open-source Umbraco CMS. By day he heads up the award-winning team at Bump, across the ... Show more
Developer Experience Manager at Eventual. Also the creator of an open-source coding assistant with ~1200 stars on GitHub, and a Claude Code tips repo with 8000+ stars. Founder of CS Dojo, a programming education YouTube channel with 1.9M+ subscribers... Show more
I'm Michel Murabito, Mich to my friends! Born in 1986 in Turin with Sicilian roots, I now live in Milan. My journey in software began at 12, coding for fun. At 18, I started my first job as a software developer and have continuously sought new challe... Show more
Julia helps teams improve system reliability, observability, and scalability by guiding the adoption of modern infrastructure and operational practices. Beyond her work, Julia is a a Community Manager to the OpenTelemetry project, CNCF Ambassador, A... Show more
Daniel is an advisor and developer with a specialisation in web technologies and open-source tooling. He works in Developer Experience at Weaviate, an open-source AI-Native vector database. Show more
Stas Lebedenko is a full-stack cloud architect and platform engineer at Solidify AB. He is also a co-organizer of the Odesa Microsoft. NET User Group, a speaker and author, and an active member of the international and Ukraine .NET/Azure/Operations c... Show more
As a Green Software Advocate and Tech Sustainability Consultant, my mission is helping companies and professionals build more sustainable, low-carbon digital solutions. Since discovering technology's environmental impact in early 2023, I've become a ... Show more
Anshika is a passionate DevOps/SRE Engineer who is always eager to learn & implement cloud-native solutions, she has contributed to streamlining deployment processes and enhancing system reliability. She is eager to share her experiences and insights... Show more
Paul is a Consulting Director & the Fabric Capabilities Owner for 3Cloud Solutions, and a 16-year Microsoft Data Platform MVP. He consults, writes, speaks, teaches & blogs at SqlServerBI.blog about business intelligence and reporting solutions. He wo... Show more
Barret Blake
#MicrosoftMVP, speaker, husband, father, architect@NimblePros, developer, former manager, gamer, LEGO enthusiast, Buckeyes fan, model railroader
Microsoft MVP, husband, father, speaker, mentor, writer, architect@NimblePros, developer, former manager, gamer, LEGO enthusiast, Buckeyes fan, model railroader. When I'm not doing all that other stuff I also occasionally develop applications. Find l... Show more
As a Microsoft 365 Modern Workplace consultant I help customers implement modern workplace solutions based on top of their Microsoft 365 licensing, leveraging products like Microsoft Intune, Microsoft Entra, Microsoft Defender, Exchange Online, Micro... Show more
Michael Johnson is a Microsoft Data Platform MVP and co-lead of the Johannesburg Data Platform User Group. Professionally, he is the owner and principal consultant at Cobalt Analytics, based in Johannesburg, South Africa. Michael regularly presents a... Show more
Spencer Schneidenbach is an AI Architect, President, and CTO of Aviron Labs, an AI and software development firm based in the United States. He has been recognized as a Microsoft MVP for his AI expertise and contributions to the community. Visit our ... Show more
Always on the road — in search of inspiration, good food, and the next interesting conversation. I'm a Microsoft MVP and consultant with over 8 years of experience in Dynamics 365 and Customer Experience. My sweet spot is Dynamics 365 Customer I... Show more
Julian Kusenberg is a Microsoft MVP and Senior Consultant at SoftwareOne AG and an expert in Microsoft 365 compliance, with a particular focus on Microsoft Purview. In his role, he supports organizations in implementing holistic security and governan... Show more
Radu Vunvulea
Technology Enthusiast, Microsoft Azure MVP, Microsoft Regional Director, VP of Cloud - Endava
Radu Vunvulea is a technology enthusiast working as VP of Cloud for Endava. He has a vast experience in different technologies and industries. Most of his time is spent working with the cloud, helping companies to innovate and finding solutions to th... 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
Phil is a developer relations engineer for IBM and Google Developer Expert living in Melbourne, Australia. He's been working in developer relations for a decade, speaking at conferences since 2012, and writing JavaScript since before jQuery. Away fro... Show more
Fabian Bader is a Cyber Security Architect and Microsoft MVP from Germany. He focuses on security and cloud solutions and works mainly with Microsoft technologies. From Azure cloud to on-premises Active Directory, he likes to automate stuff with Pow... Show more
Paulina specializes in data modeling and automation in Power BI. She also has experience with data warehousing, SQL, and ETL. "I got to know Power BI during my studies and it was love at first sight. I'm amazed how powerfull this tool is and that ... Show more
Markus Ehrenmueller-Jensen is the founder of Savory Data, with a career spanning project leadership, data engineering, and business intelligence architecture since 1994. He holds degrees in software engineering and business education and serves as 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.