Most Active Speakers 2025

Sessionize proudly presents the list of the most active speakers in the year 2025!

  • 1126 speakers
  • Auto-generated
Marcus Noble

Marcus Noble

Marcus is a platform engineer at Monzo, a UK based bank committed to making money work for everyone, helping build their infrastructure platform. His main area of focus in recent years has been around Go, Kubernetes, containers and DevOps but originally started out as a web developer and JavaScript enthusiast. A self-described “tinkerer”, when not building Kubernetes solutions, Marcus likes to dabble with 3D printing and experimenting with smart home tech.

Marcus is a platform engineer at Monzo, a UK based bank committed to making money work for everyone, helping build their infrastructure platform. His main area of focus in recent years has been around Go, Kubernetes, containers and DevOps but origina... Show more

Thorsten Pickhan

Thorsten Pickhan

Thorsten Pickhan works at Microsoft and has been focused on Microsoft 365, Microsoft Teams, Teams Phone, and Copilot for many years. As a speaker, blogger, YouTuber, and community advocate, he regularly shares his knowledge at conferences, user groups, and through his blog and YouTube channel.

From 2021 to 2025, he was honored as a Microsoft MVP in recognition of his contributions to the Microsoft community, particularly in the areas of Microsoft Teams and Copilot. After joining Microsoft, he retired the MVP title in accordance with the program requirements.

His areas of expertise include modern collaboration, communication solutions, and the productive use of AI within the Microsoft 365 ecosystem.

Thorsten Pickhan works at Microsoft and has been focused on Microsoft 365, Microsoft Teams, Teams Phone, and Copilot for many years. As a speaker, blogger, YouTuber, and community advocate, he regularly shares his knowledge at conferences, user group... Show more

Andrew Madson

Andrew Madson

Andrew Madson leads Developer Relations at Perplexity, where he builds global programs that help developers and data teams adopt modern data and AI tooling. He has built DevRel, education, and evangelism functions at Fivetran, Tobiko Data, and Dremio, delivering technical content, large-scale community programs, and keynotes across major industry conferences.

Andrew is a published author of the O’Reilly “Definitive Guide to Apache Polaris” and a graduate professor of data science and engineering. Andrew previously led AI and data teams at Arizona State University, J.P. Morgan Chase, and MassMutual among others.

Andrew Madson leads Developer Relations at Perplexity, where he builds global programs that help developers and data teams adopt modern data and AI tooling. He has built DevRel, education, and evangelism functions at Fivetran, Tobiko Data, and Dremio... Show more

Roman Tesolkin

Roman Tesolkin

Data Adventurer | Power BI Enthusiast | Microsoft Fabric & Databricks Certified Data Engineer

Sharing Insights and Empowering Through Data! Based in Frankfurt am Main, originally from Ukraine

Data Adventurer | Power BI Enthusiast | Microsoft Fabric & Databricks Certified Data Engineer Sharing Insights and Empowering Through Data! Based in Frankfurt am Main, originally from Ukraine Show more

Seema Saharan

Seema Saharan

Meet Seema, the tech whiz at Autodesk. She's not just about fixing things – she loves sharing what she knows! Whether speaking at cool events like GitLab Commit, and GitHub Universe or breaking down tech on her YouTube channel, Seema makes the complicated stuff easy and fun. Join her on a tech adventure where learning and sharing go hand in hand! 🚀

Meet Seema, the tech whiz at Autodesk. She's not just about fixing things – she loves sharing what she knows! Whether speaking at cool events like GitLab Commit, and GitHub Universe or breaking down tech on her YouTube channel, Seema makes the compli... Show more

Johan Ludvig Brattås

Johan Ludvig Brattås

Johan Ludvig Brattås leads Data & AI Solutions at Tower NewCo, and a dedicated community guy. He has worked with MS SQL server since late 1999, mostly with BI in one form or another. Since 2015, most of his work has been in the cloud working on data platform services such as Snowflake, Databricks and Fabric.

Combining his passion for MS SQL Server with his passion for sharing knowledge, he started speaking at various events in the SQL Community. This is also a way to give back to the community for all the things he has learned over the years. When not working, Johan Ludvig either spends his time with his kids, playing with new technology or teaching coeliacs how to bake glutenfree food.

Johan Ludvig Brattås leads Data & AI Solutions at Tower NewCo, and a dedicated community guy. He has worked with MS SQL server since late 1999, mostly with BI in one form or another. Since 2015, most of his work has been in the cloud working on data ... Show more

Gregor Reimling

Gregor Reimling

Gregor Reimling is a Microsoft MVP in Azure and Security, and Chief Azure Technologist at adesso SE. He leads technical strategy and implementation for Azure, focusing on enterprise-scale architectures, cloud security, governance, hybrid environments, and migration.
Gregor is a passionate community advocate, regularly speaking at international Microsoft and community conferences. He runs a popular Azure blog and co-hosts the Cloud Inspires podcast. He is the founder of the Azure Bonn Meetup, a thriving user group with over 1,000 members, and co-founder of the Cloud Identity Summit, an annual event focused on identity and security.
As a Microsoft Certified Trainer, Gregor empowers professionals through hands-on training and mentorship, helping organisations maximise their cloud potential.

Gregor Reimling is a Microsoft MVP in Azure and Security, and Chief Azure Technologist at adesso SE. He leads technical strategy and implementation for Azure, focusing on enterprise-scale architectures, cloud security, governance, hybrid environments... Show more

Peter van Vliet

Peter van Vliet

Peter started his career as a full-stack software developer in 2002 and has since progressed to a lead architect role. Over the course of these 20+ years, he has fulfilled many roles in various industries and gained extensive experience with a wide range of technologies such as Java, C#, JavaScript, and others. Nowadays, he leverages his expertise to assist companies, write articles, and speak at conferences.

His main focus is on making software development more cost-effective and future-proofing applications. Additionally, he has picked up making illustrations as a hobby because he is a strong believer in visual communication. There are no boring slides in any of his presentations.

Peter started his career as a full-stack software developer in 2002 and has since progressed to a lead architect role. Over the course of these 20+ years, he has fulfilled many roles in various industries and gained extensive experience with a wide r... Show more

Daniel Oh

Daniel Oh

Java Champion, CNCF Ambassador & TAG DevEX Co-Chair, Microsoft MVP, Developer Advocate, Technical Marketing, Keynote Speaker, Published Author

Java Champion, CNCF Ambassador & TAG DevEX Co-Chair, Microsoft MVP, Developer Advocate, Technical Marketing, Keynote Speaker, Published Author Show more

Prerit Munjal

Prerit Munjal

Prerit is a Cloud-Native Platform Leader with extensive experience designing and scaling secure, resilient cloud infrastructures. As the former CTO of KubeCloud, he built no-code solutions bridging Cloud, DevOps, and SRE, leading the company to a successful acquisition. Currently, he drives cloud-native, observability, CI/CD, and AI initiatives as a technical leader at Groupon.

Prerit is a Cloud-Native Platform Leader with extensive experience designing and scaling secure, resilient cloud infrastructures. As the former CTO of KubeCloud, he built no-code solutions bridging Cloud, DevOps, and SRE, leading the company to a suc... Show more

Jeff Foushee

Jeff Foushee

Jeff Foushee has blurred the line between developer and DBA since 1996. He collects knowledge in different programming languages, collects attractions on RoadsideAmerica.com , and volunteers as a Blackjack dealer for Louisville-area church festivals.

Jeff Foushee has blurred the line between developer and DBA since 1996. He collects knowledge in different programming languages, collects attractions on RoadsideAmerica.com , and volunteers as a Blackjack dealer for Louisville-area church festivals. Show more

Adrian Ritter

Adrian Ritter

Modern Collaboration @glueckkanja

Adrian works as Cloud Architect Modern Collaboration at glueckkanja AG. For more than 17 years, he has focused on designing and implementing collaboration platforms based on Microsoft technologies.

His roots lie in working as a SharePoint consultant. In many projects he was able to gather expert knowledge around business requirements for collaboration and processes as well as user adoption.

Modern Collaboration @glueckkanja Adrian works as Cloud Architect Modern Collaboration at glueckkanja AG. For more than 17 years, he has focused on designing and implementing collaboration platforms based on Microsoft technologies. His roots li... Show more

Ashley Steiner

Ashley Steiner

Ashley began her career in Digital Marketing but found her true calling in the world of Dynamics when she started working with Dynamics CRM version 4.0. Since then, she has become a leading expert in transforming CRM experiences for sales teams, significantly improving sales productivity and organizational efficiency. In recognition of her exceptional contributions, she was awarded the prestigious Microsoft Business Applications MVP in March 2022.

Currently, Ashley is a Solution Architect with PS Hummingbird. With over a decade of experience, her expertise spans the Sales, Customer Service, Marketing & Project Operations modules, business analysis, configuration and automation, process integration, and tool selection and analysis. She mentors individuals and people new to the industry, continuing her commitment to supporting professional growth and development.

Ashley co-leads the DFW Dynamics 365 User Group Meetup, hosts the Awkward Silence podcast with Ed Gonzales, and speaks at Dynamics events worldwide. Her commitment to integrating business processes with technology ensures consistency and accountability, making her a valued business partner in the Dynamics community.

Outside of her professional life, Ashley enjoys spending time with her family, attending country music concerts, and following various sports teams. She is an avid reader and Netflix documentary enthusiast.

Ashley began her career in Digital Marketing but found her true calling in the world of Dynamics when she started working with Dynamics CRM version 4.0. Since then, she has become a leading expert in transforming CRM experiences for sales teams, sign... Show more

Christian Henrik Reich

Christian Henrik Reich

Sr. Solution Architect at Microsoft. I started programming as a kid and never stopped. I have worked across everything from embedded systems to large‑scale data platforms. My work over the past decade has focused on Data and AI with a strong emphasis on Microsoft Fabric, SQL Server, Databricks, cloud‑scale architectures, modern data engineering, and Machine Learning. I volunteer teaching AI and Machine Learning, and I’m currently writing “The Data Engineer’s Guide to Microsoft Fabric” for O’Reilly.

Sr. Solution Architect at Microsoft. I started programming as a kid and never stopped. I have worked across everything from embedded systems to large‑scale data platforms. My work over the past decade has focused on Data and AI with a strong emphasis... Show more

Marco Parenzan

Marco Parenzan

I'm a passionate and customer-focused solutions architect with deep expertise in IoT, Cloud, .NET, and industrial applications. Microsoft has recognized my contributions with the MVP award since 2014 for Azure, and since 2024 specifically for Azure IoT.

With a background as an independent architect and developer, I’ve built a career around designing scalable, real-world solutions that bridge the gap between modern cloud technologies and industrial needs. I’m a frequent speaker at major tech community events across Italy, sharing knowledge on Azure, IoT, and .NET development.
As the community lead of 1NN0VA, a Microsoft-recognized tech community in Pordenone, Italy, I’m passionate about fostering innovation, mentoring developers, and supporting local tech growth. In 2016, I authored a book on Microsoft Azure to help others embrace the platform's potential.
At heart, I’m a missed researcher and a retro computing lover. I enjoy developing retrogames and playing with his Commodore 64, diving into sci-fi and comic books, and relaxing with a good streaming serie.

I'm a passionate and customer-focused solutions architect with deep expertise in IoT, Cloud, .NET, and industrial applications. Microsoft has recognized my contributions with the MVP award since 2014 for Azure, and since 2024 specifically for Azure I... Show more

Elaine Dias Batista

Elaine Dias Batista

Elaine is a Senior Staff Engineer at SFEIR where she works on projects including mobile technologies since 2013. She has worked on several projects in native Android/iOS and Flutter. She's a GDE for the Google Assistant, Flutter and Dart

Elaine is a Senior Staff Engineer at SFEIR where she works on projects including mobile technologies since 2013. She has worked on several projects in native Android/iOS and Flutter. She's a GDE for the Google Assistant, Flutter and Dart Show more

Ramona Domen

Ramona Domen

Ramona is a software engineer, Microsoft MVP and public speaker with a passion for creating inclusive and accessible applications. She likes to spread awareness about this topic and hopes to inspire people both in her daily work and by taking the stage whenever she gets the chance.

Ramona is a software engineer, Microsoft MVP and public speaker with a passion for creating inclusive and accessible applications. She likes to spread awareness about this topic and hopes to inspire people both in her daily work and by taking the sta... Show more

Johnny Hooyberghs

Johnny Hooyberghs

Johnny Hooyberghs is a managing partner and consultant for Involved NV, part of the Cronos group, since 2014 focusing on software architecture, backend development and a Microsoft Most Valuable Professional for Azure and Developer Technologies since 2020. Prior to joining Involved as a consultant, he has had experience developing software for the health-care sector since 2008. Johnny has been passionate about software development using the .NET stack, cloud native development using the Microsoft Azure cloud stack and quantum computing. Johnny has spent 10 years of his free time teaching software development courses for the adult education institute CVO Antwerpen and has been enjoying public speaking these past 6 years. When Johnny is not working, he likes to spend his time on self-education, quantum computing, some casual video gaming, travelling the world and visiting as many theme parks as possible.

Johnny Hooyberghs is a managing partner and consultant for Involved NV, part of the Cronos group, since 2014 focusing on software architecture, backend development and a Microsoft Most Valuable Professional for Azure and Developer Technologies since ... Show more

Jonathan Manrique

Jonathan Manrique

I am a digital transformation and Microsoft Business Applications professional with over 10 years of experience helping organizations improve the way they work through Microsoft 365, Dynamics 365 CRM, and Power Platform.

My focus is on turning business challenges into scalable, practical, and user-centered digital solutions. I have supported clients from multiple industries in the design and implementation of applications, process automation, CRM solutions, collaboration platforms, and low-code initiatives that drive productivity, efficiency, and business impact.

My expertise combines business process analysis, solution architecture, low-code development, team leadership, user adoption, training, and pre-sales consulting. This allows me to connect business strategy with technology execution, helping organizations not only implement solutions, but also adopt them successfully.

I am passionate about continuous learning, innovation, and community. I actively contribute to the Power Platform Community as a Super User and I am part of the Power Platform Barcelona User Group, where I collaborate, share knowledge, and support the growth of the Microsoft ecosystem.

I am a digital transformation and Microsoft Business Applications professional with over 10 years of experience helping organizations improve the way they work through Microsoft 365, Dynamics 365 CRM, and Power Platform. My focus is on turning bus... Show more

Henk Boelman

Henk Boelman

Henk is a Cloud Advocate specializing in Artificial intelligence and Azure with a background in application development. He is currently part of the AI cloud advocate team and based in the Netherlands. Before joining Microsoft, he was a Microsoft AI MVP and worked as a software developer and architect building lots of AI powered platforms on Azure.

Henk is a Cloud Advocate specializing in Artificial intelligence and Azure with a background in application development. He is currently part of the AI cloud advocate team and based in the Netherlands. Before joining Microsoft, he was a Microsoft AI ... Show more

Gabriel Naranjo Lituma

Gabriel Naranjo Lituma

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 workshops, offering consultancy, and geeking out about the latest and greatest in the world of the cloud. As if that's not enough fun, I'm Microsoft MVP & Microsoft Certified Trainer (MCT), which means I get a kick out of helping people level up their tech skills.
I'm always on the lookout for exciting ways to take technology to the next level and help businesses perform better. Connect with me, and let's explore what the cloud can do for you. Let's make some tech magic together!"

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

Massimo Bonanni

Massimo Bonanni

Massimo Bonanni is a Senior Technical Trainer, international speaker, and community leader passionate about Azure and developer technologies. A six-time Microsoft MVP in Windows and Developer Tools, as well as an Intel Black Belt and Software Innovator, he has delivered more than 200 technical sessions over the last decade. He loves turning complex topics into clear, practical, and engaging learning experiences — ideally with demos, real-world examples, and at least one nerdy joke. When he is off stage, you will likely find him reading or building LEGO sets.

Massimo Bonanni is a Senior Technical Trainer, international speaker, and community leader passionate about Azure and developer technologies. A six-time Microsoft MVP in Windows and Developer Tools, as well as an Intel Black Belt and Software Innovat... Show more

John Kerski

John Kerski

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 high rate of return when looking to invest in Microsoft solutions.

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

Michael Niehaus

Michael Niehaus

Michael Niehaus is a Programme Director and Master Inventor at 2Pint Software, working on device management and OS deployment technologies. Previously, Michael spent 16 years at Microsoft working on MDT, Windows as a Service, Windows Autopilot, and related management and deployment technologies. Prior to that, he spent 14 years working as an IT pro.

Michael Niehaus is a Programme Director and Master Inventor at 2Pint Software, working on device management and OS deployment technologies. Previously, Michael spent 16 years at Microsoft working on MDT, Windows as a Service, Windows Autopilot, and r... Show more

David Martinez

David Martinez

Hi! I'm David. Sometimes a speaker, sometimes a listener, and always interested in web technologies. I work on complex projects involving anything related to API's & AI. I am Microsoft MVP in Foundry

Also, I am a co-organizer of GDG Ponferrada and Global AI Ponferrada.

Hi! I'm David. Sometimes a speaker, sometimes a listener, and always interested in web technologies. I work on complex projects involving anything related to API's & AI. I am Microsoft MVP in Foundry Also, I am a co-organizer of GDG Ponferrada and... Show more

Richard Campbell

Richard Campbell

Richard Campbell wrote his first line of code in 1977. His career has spanned the computing industry, both on the hardware and software sides, development, and operations. He was a co-founder of Strangeloop Networks, acquired by Radware in 2013, and was on the board of directors of Telerik, which was acquired by Progress Software in 2014. Today, he is a consultant and advisor to several successful technology firms and hosts three podcasts: .NET Rocks! (www.dotnetrocks.com) for .NET developers, RunAs Radio (www.runasradio.com) for IT Professionals, and Windows Weekly (https://twit.tv/shows/windows-weekly).

Richard Campbell wrote his first line of code in 1977. His career has spanned the computing industry, both on the hardware and software sides, development, and operations. He was a co-founder of Strangeloop Networks, acquired by Radware in 2013, and ... Show more

Serge Luca

Serge Luca

Serge Luca, also known as Doctor Flow, is a 19-time Microsoft MVP and currently a Business Applications MVP specializing in Power Automate, Power Apps, and Copilot Studio. Based in Brussels, Belgium, he works as a Power Platform Solution Architect and has designed and delivered more than 18 enterprise-scale Power Platform projects.

An international and Microsoft Ignite speaker, Serge is also a frequent blogger and community contributor. He has completed multiple assignments for the Microsoft SharePoint team in Redmond, worked on projects worldwide, and served as a Subject Matter Expert for Microsoft Learning on SharePoint and Workflow Foundation.

Serge has trained over a thousand developers in SharePoint technologies and is the author of the renowned Master Class Microsoft Power Automate and Master Class Power Apps workshops. He also collaborated with the Flow team to help create the “Microsoft Power Automate in a Day” workshop.

In addition, Serge is the creator of the open-source Power Platform BPM Toolkit, available on GitHub. Earlier in his career, he worked as a researcher at the University of Namur (Belgium) and as a contractor for Microsoft (USA).

Serge Luca, also known as Doctor Flow, is a 19-time Microsoft MVP and currently a Business Applications MVP specializing in Power Automate, Power Apps, and Copilot Studio. Based in Brussels, Belgium, he works as a Power Platform Solution Architect an... Show more

Sandra Kiel

Sandra Kiel

Sandra is a Microsoft MVP, speaker, and entrepreneur driven by one question: how can digital work feel more intuitive, motivating, and human? As founder of a company rooted in gaming and interactive experiences, she brings game thinking into the Microsoft ecosystem—from Microsoft 365 and Copilot experiences to Business applications and Collaboration workflows. Sandra translates proven game UX patterns into adoption-friendly solutions that help people navigate complexity with confidence.

Beyond technology, Sandra is a passionate community builder. She actively creates spaces where people connect, learn, and grow and she is especially committed to helping new speakers find their voice. Because her own speaker journey started late, she knows how intimidating the stage can feel. As a woman in tech, she also understands what it takes to be seen and taken seriously, and she mentors others to step forward, build confidence, and shape their own path in the community.

Sandra is a Microsoft MVP, speaker, and entrepreneur driven by one question: how can digital work feel more intuitive, motivating, and human? As founder of a company rooted in gaming and interactive experiences, she brings game thinking into the Micr... Show more

Nicolas Fränkel

Nicolas Fränkel

Nicolas Fränkel is a technologist focusing on cloud-native technologies, DevOps, CI/CD pipelines, and system observability. His focus revolves around creating technical content, delivering talks, and engaging with developer communities to promote the adoption of modern software practices. With a strong background in software, he has worked extensively with the JVM, applying his expertise across various industries. In addition to his technical work, he is the author of several books and regularly shares insights through his blog and open-source contributions.

Nicolas Fränkel is a technologist focusing on cloud-native technologies, DevOps, CI/CD pipelines, and system observability. His focus revolves around creating technical content, delivering talks, and engaging with developer communities to promote the... Show more

Valerie Junk

Valerie Junk

Hi there. I am Valerie Junk.
I am passionate about creating insights from data and designing dashboards using Power BI. With my expertise in data analytics and visualization, I support companies in developing effective data-driven strategies that yield results and take the business to the next level.
Microsoft Data Platform MVP

Hi there. I am Valerie Junk. I am passionate about creating insights from data and designing dashboards using Power BI. With my expertise in data analytics and visualization, I support companies in developing effective data-driven strategies that y... 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.