Most Active Speakers 2025

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

  • 1128 speakers
  • Auto-generated
Divya Akula

Divya Akula

Hosting 16+ years with AI, Copilot,Azure, SharePoint & M365 technologies.

Hosting 16+ years with AI, Copilot,Azure, SharePoint & M365 technologies. Show more

Samantha St-Louis (Allegrini)

Samantha St-Louis (Allegrini)

Samantha St-Louis is an AI Engineer & Architect whom occupies Leadership & Executive AI Strategy roles while being an international speaker.

A Microsoft MVP and Microsoft Certified Trainer, Samantha is recognized for making complex AI concepts accessible to both business leaders and technologists. Her sessions challenge conventional thinking, replace hype with practical frameworks, and leave audiences with strategies they can immediately apply inside their organizations.

She specializing in helping organizations move from isolated AI experiments to scalable, enterprise-wide AI capabilities. Her work spans enterprise architecture, agentic AI, governance, multi-agent orchestration, and AI transformation strategy.

Known for bridging the gap between executive strategy and technical implementation, Samantha combines deep technical expertise with a practical business perspective developed through leading enterprise AI initiatives for global organizations. She is the creator of the AI Operating Model and Neuromodular AI Architecture frameworks, helping organizations scale AI without creating technical debt or AI sprawl.

Samantha St-Louis is an AI Engineer & Architect whom occupies Leadership & Executive AI Strategy roles while being an international speaker. A Microsoft MVP and Microsoft Certified Trainer, Samantha is recognized for making complex AI concepts acc... Show more

Alvin Ashcraft

Alvin Ashcraft

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. Previously, he managed the documentation for WinUI, the Windows App SDK, and Windows SDK.

Alvin is a dedicated community builder, serving as a founding organizer, Treasurer, and acting VP for the TechBash conference. He has authored definitive guides for developers, including Learn WinUI 3 and Parallel Programming and Concurrency with C# and .NET.

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

Bharath Nallapeta

Bharath Nallapeta

Bharath Nallapeta leads the Open Source Program Office at Mirantis, where he works on the infrastructure beneath modern platforms: Kubernetes cluster lifecycle, bare metal, multi-cluster management, and the fast-moving world of AI agents. He contributes to Cluster API and its OpenStack provider, works on agentic workflows, and spends most of his time on the unglamorous layers that decide whether a platform actually holds up in production.

He's also one of the more active speakers in his field, with numerous talks at conferences and meetups worldwide, including KubeCon, MCP Dev Summit, OpenInfra Summit, DevOpsDays and more. He gravitates toward sessions that show real, working things instead of slides, and that make hard infrastructure approachable for the people who have to run it.

Bharath Nallapeta leads the Open Source Program Office at Mirantis, where he works on the infrastructure beneath modern platforms: Kubernetes cluster lifecycle, bare metal, multi-cluster management, and the fast-moving world of AI agents. He contribu... Show more

Luis Beltran

Luis Beltran

I'm a Microsoft MVP in Azure, Artificial Intelligence, and Developer Technologies. I am currently pursuing a PhD in Engineering Informatics at Tomas Bata University in Zlin, Czech Republic.

I've been developing .NET apps for +10 years. I find C# a really powerful language which allow us to create different kinds of software. I focus on mobile apps (Xamarin/.NET MAUI), cloud computing (Azure) and AI.

I enjoy sharing my knowledge with others.

I'm a Microsoft MVP in Azure, Artificial Intelligence, and Developer Technologies. I am currently pursuing a PhD in Engineering Informatics at Tomas Bata University in Zlin, Czech Republic. I've been developing .NET apps for +10 years. I find C# a... Show more

Lenin Alevski

Lenin Alevski

Lenin Alevski is a Full Stack Engineer and generalist with a lot of passion for Information Security. Currently working as a Security Engineer at Google. Lenin specializes in building and maintaining Distributed Systems, Application Security and Cloud Security in general. Lenin loves to play CTFs, contributing to open-source and writing about security and privacy on his personal blog https://www.alevsk.com.

Lenin Alevski is a Full Stack Engineer and generalist with a lot of passion for Information Security. Currently working as a Security Engineer at Google. Lenin specializes in building and maintaining Distributed Systems, Application Security and Clou... Show more

Jochen Kirstätter

Jochen Kirstätter

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 world of cloud computing. You can either meet him at the regular meetups of the Mauritius Software Craftsmanship Community or reach him on X and Mastodon: @JKirstaetter.

Jochen is a Google Developer Expert (GDE) for Google Cloud and a Microsoft Most Valuable Programmer (MVP) for Developer Technologies for several years. He founded the now largest IT community in Mauritius, and organises the annual Developers Conference. Following his interest in cross-platform technologies he is also an organiser of the Google Developer Group (GDG) Mauritius.

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

Ana Maria Bisbe York

Ana Maria Bisbe York

Ana María is a data professional with over 35 years of experience in the software industry and extensive experience, both in training and in projects, in data modeling and analysis with Microsoft technology like SQL, Power BI, and Fabric for advanced analytics.
She shares knowledge and experiences and promotes the visibility of female talent in technology.
You can find her in forums and international events and congresses in Spain, many European countries, LATAM, and the United States, as a speaker, organizer, or attendee, and also online on her Twitter account (ambynet), on LinkedIn (https://www.linkedin.com/in/ambynet/) or her technical blog at AMBY.NET (https://amby.net/) which he has maintained for almost 20 years. She is a Power Platform Madrid community co-leader and leads projects and initiatives in Power Platform Spain.

Ana María is a data professional with over 35 years of experience in the software industry and extensive experience, both in training and in projects, in data modeling and analysis with Microsoft technology like SQL, Power BI, and Fabric for advanced... Show more

Mark Rackley

Mark Rackley

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 architecture and development projects for clients while providing the best solutions for clients' unique problems. Mark has a unique ability to breakdown complicated technical topics in a way that are easily consumable by a non-technical audience and engages his audience with humor and real-world stories. As a globally recognized M365 geek, Mark is an active blogger, presenter, author (and bacon aficionado) who is eager to lend his real-world knowledge of SharePoint to all who need it.

In addition to speaking at various SharePoint & Office 365 conferences around the world, Mark is the organizer of The North American Collaboration Summit (www.collabsummit.org) in Branson, Missouri

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

Marco Pollacci

Marco Pollacci

Hi! I’m a frontend developer with a long-standing love affair with JavaScript, CSS, and the magic they bring to the web.
My journey started back in the jQuery era, when Chrome was just a baby—and I’ve been hooked ever since! I thrive on building snappy, interactive experiences and exploring the endless possibilities of the modern web.

Hi! I’m a frontend developer with a long-standing love affair with JavaScript, CSS, and the magic they bring to the web. My journey started back in the jQuery era, when Chrome was just a baby—and I’ve been hooked ever since! I thrive on building sna... Show more

Rebai Hamida

Rebai Hamida

As Principal Solutions Architect, leveraging over 16 years of experience, I contributed to driving digital transformation and advancing cloud value management practices within the public sector. Proficient in solution architecture, team leadership, and cloud modernization strategies, collaborated with diverse teams to align technology solutions with organizational goals. Core competencies include hybrid architecture design, cloud-native platform transitions, and embedding FinOps principles to optimize cloud investments.
Actively engaged in the FinOps community as a foundation member, facilitating workshops and sharing knowledge to empower professionals in cloud financial operations. Dedicated to fostering innovation and enabling scalable, efficient solutions for complex enterprise environments. Continuously focused on delivering measurable outcomes, enhancing operational efficiency, and reducing cloud costs through automation and AI-driven strategies.

As Principal Solutions Architect, leveraging over 16 years of experience, I contributed to driving digital transformation and advancing cloud value management practices within the public sector. Proficient in solution architecture, team leadership, a... Show more

Amarender Peddamalku

Amarender Peddamalku

Amarender Peddamalku is a Microsoft MVP in Business Applications. As a Digital Transformation Leader and Microsoft Modern Work Practice Lead at Perficient, my focus is on Employee Experience and Power Platform. Has over 15 years of experience with Microsoft Technologies and worked with every single version of SharePoint since its inception.

Amarender Peddamalku is a Microsoft MVP in Business Applications. As a Digital Transformation Leader and Microsoft Modern Work Practice Lead at Perficient, my focus is on Employee Experience and Power Platform. Has over 15 years of experience with Mi... Show more

Jon Vöge

Jon Vöge

Jon is a Principal Consultant at Inspari, working with Solution Architecture and delivering Microsoft Fabric, Power BI & Power Platform solutions. He is passionate about Low-code development, and a huge believer in putting data analytics into the hands of the business user.

Jon is a Principal Consultant at Inspari, working with Solution Architecture and delivering Microsoft Fabric, Power BI & Power Platform solutions. He is passionate about Low-code development, and a huge believer in putting data analytics into the han... Show more

Marcin Siewnicki

Marcin Siewnicki

I'm a Microsoft 365 Solution Architect and Microsoft MVP in SharePoint and Teams. I build applications and solutions that make work easier and more efficient, using Power Platform, SharePoint, and Teams.

I've been working in IT since 2005, building and delivering business applications on SharePoint and Microsoft 365. I'm passionate about task and process automation (Power Automate) and modern workplace platforms, especially Microsoft Teams.

Outside of work, I'm a husband and a father of two sons, a science fiction and cyberpunk fan, and a futurist at heart. I co-organize the CollabDays Poland conference and speak at Microsoft community events.

I'm a Microsoft 365 Solution Architect and Microsoft MVP in SharePoint and Teams. I build applications and solutions that make work easier and more efficient, using Power Platform, SharePoint, and Teams. I've been working in IT since 2005, buildin... Show more

Pauline Kolde

Pauline Kolde

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 Insights and Dynamics 365 Sales, but I'm equally at home talking about AI, Copilot, and where it's all heading. I'm driven by curiosity, about technology, about people, and about the spaces in between.
That curiosity also shapes the sessions I love to give. Alongside deep-dives into Microsoft tech, I design talks on mindset and methods: from building a Second Brain to applying Street Epistemology, the Socratic questioning practice, in everyday professional life.

When I'm not on stage or on a client project, you'll find me somewhere in the world with a knitting project in my bag, great company around the table, and probably too many browser tabs open.

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

Sven Sieverding

Sven Sieverding

I am both a SharePoint developer and consultant @teamneusta with over 15 years of experience with creating collaboration and modern workspace solutions using Microsoft tools.

My favorite quote is "When all you have is a Hammer, everything looks like a Nail"(Abraham Maslow)
Why? Because our world is complex. And a single tool or a narrow perspective won't help with complex problems.
So, i think that lifelong learning, trying new technologies and talking about them to others are extremely important things.

I am both a SharePoint developer and consultant @teamneusta with over 15 years of experience with creating collaboration and modern workspace solutions using Microsoft tools. My favorite quote is "When all you have is a Hammer, everything looks l... Show more

Gabi Münster

Gabi Münster

Gabi Münster (she / her) started working with SQL Server technologies in 2005 during her time as Web Application developer. After 11 years as BI consultant / Data architect and being awarded Data Platform MVP since 2018, she joined Microsoft in March 2022 as part of the Azure Data Customer Advisory Team and works as a Principal Program Manager covering Fabric.
She speaks at regional chapter meetings, national and international conferences. Since 2016 she also supports a regional chapter as co-lead.
Apart from BI topics she also supports Diversity topics.

Gabi Münster (she / her) started working with SQL Server technologies in 2005 during her time as Web Application developer. After 11 years as BI consultant / Data architect and being awarded Data Platform MVP since 2018, she joined Microsoft in March... Show more

Lee Markum

Lee Markum

Lee is a SQL Server Database Administrator who got his start with SQL Server back in 2009. Back in the day, he earned an MCTS certification on SQL Server 2008. That was followed up in 2020 with the AZ-900 Azure Fundamentals and DP-900 Microsoft Azure Data Fundamentals certifications. He has officially been a DBA since 2014. Lee has worked for small companies under 100 people to large enterprises of thousands of employees and used databases of all sizes.

He has presented at SQL Server Meetups, New Stars of Data, SQL Saturdays, was an online speaker for the RedGate PASS Data Community Summit 2022, and spoke at Saint Louis DevUp in 2024 and 2025.

Lee blogs at LeeMarkum.com and he loves finding and experimenting with new features in SQL Server. High availability and disaster recovery as well as performance monitoring and troubleshooting are of special interest to Lee.

Lee is a SQL Server Database Administrator who got his start with SQL Server back in 2009. Back in the day, he earned an MCTS certification on SQL Server 2008. That was followed up in 2020 with the AZ-900 Azure Fundamentals and DP-900 Microsoft Azure... Show more

Osita Ifezue

Osita Ifezue

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 Storyboard Backcasting and Origin Story-Loop Strategic Frameworks, strategic storytelling tools designed to enhance learning in the storytelling process. Beyond entrepreneurship, Osita founded Entergrate, an NGO in Finland that focuses on social inclusion, and he hosts the podcast Think About It! With Osita Ifezue.

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

Aidan Finn

Aidan Finn

Aidan Finn (@joe_elway) is a Microsoft Azure MVP and the founder of Cloud Mechanix, where he delivers expert-led Azure training and consulting based on decades of real-world experience. With a career spanning infrastructure, virtualisation, and cloud, Aidan helps organisations design secure, scalable Azure solutions—and empowers teams to master the platform themselves. Learn more at cloudmechanix.com and his blog, aidanfinn.com.

Aidan Finn (@joe_elway) is a Microsoft Azure MVP and the founder of Cloud Mechanix, where he delivers expert-led Azure training and consulting based on decades of real-world experience. With a career spanning infrastructure, virtualisation, and clou... Show more

Elena Drakulevska

Elena Drakulevska

Hi, I’m Elena Drakulevska, a Principal Product Manager at Microsoft working on Power BI Core Visuals, where I help shape the future of reporting and data visualization.

I’m also an international speaker, Microsoft MVP alumna, and founder of MoonStory, a platform focused on UX Design and Data Visualization. Through conferences, mentoring, blogging, and community initiatives, I share my mission of making technology more human, empowering, and joyful. ✨

Hi, I’m Elena Drakulevska, a Principal Product Manager at Microsoft working on Power BI Core Visuals, where I help shape the future of reporting and data visualization. I’m also an international speaker, Microsoft MVP alumna, and founder of MoonSt... Show more

Norm Young

Norm Young

Norm Young is a Power Platform Solution Architect at AvePoint. He is a 6-time Microsoft MVP with a focus on building collaborative solutions using SharePoint, Microsoft Teams and the Power Platform.

Norm blogs and speaks about Microsoft 365, the Power Platform and how they are better together and with a little bit of help from the community we can all do awesome things with technology.

Norm Young is a Power Platform Solution Architect at AvePoint. He is a 6-time Microsoft MVP with a focus on building collaborative solutions using SharePoint, Microsoft Teams and the Power Platform. Norm blogs and speaks about Microsoft 365, the P... Show more

Ferdi Lethen-Oellers

Ferdi Lethen-Oellers

Ferdi Lethen-Oellers is a senior consultant in the area of Microsoft 365 and helps companies increase productivity in their everyday work. He likes to focus on the most important component in the process: people. Since the pandemic, Ferdi has been an avid jogger and regularly goes to soccer. Besides sports, his family is the most important thing to him. Ferdi is an expert on the topic of Microsoft 365 and is available for questions as well as consultations. Inquiries via mail to ferdi.lethen@outlook.de.

Ferdi Lethen-Oellers is a senior consultant in the area of Microsoft 365 and helps companies increase productivity in their everyday work. He likes to focus on the most important component in the process: people. Since the pandemic, Ferdi has been an... Show more

Rachel Dubois

Rachel Dubois

I believe that we can create products and services that make the world a better place. And that we can learn and grow in the process of doing so. Our challenge is that we waste time and money and human energy on untested ideas that, too often, turn out to be something that the customer does not want. Or, if we have an idea that is really good, we get in our own way by not executing it well, by not being able to communicate, inspire, and empower our collaborators and stakeholders as we must in order to do the impossible: launch and grow good ideas that the world needs, fostering sustainable and ethical growth.

I work to solve that.
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25 years + experience in Tech as Product Lead
Named TOP 50 Product Leader to follow in 2024 (worldwide)
Agile @scale expert
International speaker & keynoter since 2008
Worked for : Spotify, Airbus, Orange, Natixis, Legrand, ...

I believe that we can create products and services that make the world a better place. And that we can learn and grow in the process of doing so. Our challenge is that we waste time and money and human energy on untested ideas that, too often, turn... Show more

Marc Duiker

Marc Duiker

Marc is a Sr Developer Advocate at Diagrid and enjoys sharing knowledge on how to build distributed applications. He's one of the Dapr Community Managers, and he loves helping developers to achieve more every day.

You might have seen Marc at a developer meetup or conference, since he's a regular speaker and event-organizer in the area of Dapr, Azure cloud, and serverless technologies. From 2019 to 2025 Marc received the Microsoft Azure MVP award for his community contributions.

In his spare time, Marc likes to give attention to the creative part of his brain. He likes to create pixel art (check out VSCode Pets), code visuals & music, and create an occasional retro game.

Marc is a Sr Developer Advocate at Diagrid and enjoys sharing knowledge on how to build distributed applications. He's one of the Dapr Community Managers, and he loves helping developers to achieve more every day. You might have seen Marc at a dev... Show more

Gianluca Sartori

Gianluca Sartori

Gianluca Sartori is a Data Platform MVP, independent consultant and performance tuning specialist. He has been working in the software industry since 1999 and has been working with SQL Server ever since. He also works as a SQL Server trainer and in his spare time he writes technical articles and participates the SQL Server forums. Gianluca enjoys presenting SQL Server topics at conferences in Europe and US. He is currently working as lead DBA at a famous Formula 1 team.

Gianluca Sartori is a Data Platform MVP, independent consultant and performance tuning specialist. He has been working in the software industry since 1999 and has been working with SQL Server ever since. He also works as a SQL Server trainer and in h... Show more

Michael Johnson

Michael Johnson

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 at many local and international user groups and conferences on topics including data engineering and analytics.

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

Scott Durow

Scott Durow

Scott Durow is a 10 x Microsoft Business Applications MVP and Power Platform Developer Advocate at Microsoft. He is a YouTuber, Podcaster, Speaker, Author, and the creator of tools such as the Ribbon Workbench, spkl, and dataverse-ify, which have become essential tools for Power Platform developers. With over two decades of software engineering experience, he has a deep understanding of Power Platform, having built solutions using it since its early days as Microsoft CRM v1, SharePoint Server 2001 & BizTalk Server 2000. Before this, Scott moved from assembly language device driver programming, into industrial control software engineering and then on to architecting enterprise business software.

Scott is passionate about sharing his knowledge and expertise and you can see him speaking at events throughout the globe. Remaining a developer at heart, Scott embraces both low-code and pro-code solutions!

#ProCodeNoCodeUnite
#CommunityRocks

Scott Durow is a 10 x Microsoft Business Applications MVP and Power Platform Developer Advocate at Microsoft. He is a YouTuber, Podcaster, Speaker, Author, and the creator of tools such as the Ribbon Workbench, spkl, and dataverse-ify, which have bec... Show more

Hannes Lagler-Gruener

Hannes Lagler-Gruener

Hannes Lagler-Gruener is a senior cloud architect with consulting experience of more than 15 years.
Hannes is focusing on cloud architecture and security.
Hannes had deep experience in IaaS, Security, Networking, Governance, and IaC. He started his carrier at one of the biggest Austrian banks and changed to Microsoft Austria after a few years.
Currently, Hannes is working at ACP IT Solutions GMBH as Lead-Cloud Solutions Architect.

Hannes Lagler-Gruener is a senior cloud architect with consulting experience of more than 15 years. Hannes is focusing on cloud architecture and security. Hannes had deep experience in IaaS, Security, Networking, Governance, and IaC. He started his... Show more

Doug Leal

Doug Leal

With more than two decades of experience, Doug is a technology and data leader at CGI who helps clients execute critical data-centric solutions, analytics and data engineering strategies, and AI initiatives. He has led high-impact transformations driven by modern cloud data platforms and AI-driven solutions that improve decision-making, streamline operations, and unlock new opportunities across multiple industries.

Doug partners with business and technology leaders to accelerate digital transformation and scale innovation. He serves on the Databricks Partner Product Advisory Board, representing CGI, and the Per Scholas Orlando Advisory Board. He also is recognized by Databricks as a Champion for CGI, bringing leading-edge insight directly into client strategies.

With more than two decades of experience, Doug is a technology and data leader at CGI who helps clients execute critical data-centric solutions, analytics and data engineering strategies, and AI initiatives. He has led high-impact transformations dri... 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.