Most Active Speakers 2025

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

  • 1125 speakers
  • Auto-generated
James McGillivray

James McGillivray

James McGillivray, Data Management and Analytics MCSE, has been working in Business Intelligence for over a decade. He spends his working hours building solutions that allow people to make informed decisions. quickly and accurately. He is a Director at South African Data Consultancy, Cobalt Analytics.

Before his career in data, James was an avid musical theatre student and musician. This love for performance has developed into a passion for developing and delivering presentations that are informative and enjoyable. James speaks frequently at Data Community Events, and has presented at some of the most well-known Data Events around the globe, including PASS Summit, SQL Bits and the Power BI World Tour.

James McGillivray, Data Management and Analytics MCSE, has been working in Business Intelligence for over a decade. He spends his working hours building solutions that allow people to make informed decisions. quickly and accurately. He is a Director ... Show more

Vadym Kazulkin

Vadym Kazulkin

I'm Vadym Kazulkin 🇺🇦, husband and father of 3. I'm AWS Serverless Hero and Head of Development at ip.labs based in Bonn. I have been in the tech industry for over 25 years. My current focus and interests include the design and implementation of highly scalable and available applications in the AWS Cloud, with a special passion for Serverless, Generative, and Agentic AI, as well as the optimization of Java applications (also utilizing Spring Boot, Micronaut, and Quarkus frameworks) on AWS Lambda.

I'm also the co-organizer of the Java User Group Bonn meetup, a frequent speaker at various national and international events, and a regular author of articles in different published and online magazines and on my online blog.

I'm Vadym Kazulkin 🇺🇦, husband and father of 3. I'm AWS Serverless Hero and Head of Development at ip.labs based in Bonn. I have been in the tech industry for over 25 years. My current focus and interests include the design and implementation of hi... Show more

Eickhel Mendoza

Eickhel Mendoza

Eickhel Mendoza is a Microsoft Business Applications MVP with extensive experience in project management, Microsoft Azure development, and Microsoft Power Platform technologies. He is also the author of the Power Apps Cookbook.

He manages the Business Apps, Data & AI department, overseeing all Microsoft 365 and Power Platform projects. Eickhel has made valuable contributions to significant community events such as the Power Platform Community Conference, Global Azure Bootcamp, Microsoft 365 Developer Bootcamp, and Dynamics 365 Saturdays.

He also coordinates the Power Platform Canarias user group, where like-minded developers come together to share knowledge in various areas. In addition, Eickhel is a member of the Bizz Summit Spain organizing committee.

Eickhel Mendoza is a Microsoft Business Applications MVP with extensive experience in project management, Microsoft Azure development, and Microsoft Power Platform technologies. He is also the author of the Power Apps Cookbook. He manages the Busi... Show more

Roel Hartman

Roel Hartman

Roel started a long time ago using Oracle RDBMS 5, Oracle Forms 2.3, RPT/RPF and Oracle*Case 4.5. Since over 10 years he focuses mainly on Oracle Application Express.
Roel has been a speaker on UKOUG, OOW, Collaborate, ODTUG's Kscope and a number of local Oracle User Groups.
Within ODTUG he acted as the APEX Content Lead for the Kscope14 and KScope15 conferences and was a member of the Board of Directors from 2018 to 2024.
He keeps an (APEX-related) blog on https://roelhartman.blogspot.com.
In June 2009 Roel received an Oracle ACE award and in August 2010 he's appointed as Oracle ACE Director.
Roel is a co-writer of the "Expert Oracle Application Express" and "Oracle Application Express for Mobile Web Applications" books.
Roel is Director at APEX Consulting in The Netherlands.

Roel started a long time ago using Oracle RDBMS 5, Oracle Forms 2.3, RPT/RPF and Oracle*Case 4.5. Since over 10 years he focuses mainly on Oracle Application Express. Roel has been a speaker on UKOUG, OOW, Collaborate, ODTUG's Kscope and a number of... Show more

María Soto Castro

María Soto Castro

Apasionada de la tecnología y del marketing, actualmente, obsesionada con Chat GPT.
GlobalAI Bootcamp | W4TT

Apasionada de la tecnología y del marketing, actualmente, obsesionada con Chat GPT. GlobalAI Bootcamp | W4TT Show more

Fabio Bonolo

Fabio Bonolo

🚀 #FutureofModernWork - The future starts now!

👋🏻 Ciao! I'm Fabio, Microsoft MVP in the M365 Copilot category, Teamleader Productivity at redIT Switzerland, speaker and passionate community enthusiast with a clear goal: empowering people to actively shape the future of work with Microsoft 365 and Copilot. ✨

🎯 My mission
I support my network with practical insights and valuable knowledge about Microsoft 365 Copilot - so that you can extend your digital knowledge. It's not just about technology. It's about empowerment. Perspectives. The future. 🎯

🚀 #FutureofModernWork - The future starts now! 👋🏻 Ciao! I'm Fabio, Microsoft MVP in the M365 Copilot category, Teamleader Productivity at redIT Switzerland, speaker and passionate community enthusiast with a clear goal: empowering people to act... Show more

Ron Dagdag

Ron Dagdag

Ron Dagdag brings over 25 years of experience as a software artisan to his role as Research Engineering Manager at Thomson Reuters, where he leads teams to develop transformative AI solutions. In addition to his professional responsibilities, Ron is an active member of the tech community, recognized as a Microsoft MVP in AI, Mixed Reality, and IoT. Ron is an international speaker, sharing his knowledge at industry events, and remains an active maker and tinkerer with a passion for Augmented Intelligence.
🚀 Code > Create > Coach > Repeat.

Ron Dagdag brings over 25 years of experience as a software artisan to his role as Research Engineering Manager at Thomson Reuters, where he leads teams to develop transformative AI solutions. In addition to his professional responsibilities, Ron is ... Show more

Indira Bandari

Indira Bandari

I have a Masters degree in Statistics and have over 20 years of experience in designing and developing datawarehouses and analytical solutions.

I am a co-organiser of the NZ Business Intelligence - Power BI User Group and Auckland Artificial Intelligence Meetups. I am also an international Speaker at various events and conferences.

Volunteering and sharing my knowledge is my passion. In my pass time I teach game development for primary school kids. I have started teaching about databases and Power BI to 10 -15 year old kids and amaze myself at the creativity the younger generation is capable of

I have a Masters degree in Statistics and have over 20 years of experience in designing and developing datawarehouses and analytical solutions. I am a co-organiser of the NZ Business Intelligence - Power BI User Group and Auckland Artificial In... Show more

Alpa Buddhabhatti

Alpa Buddhabhatti

Alpa is an Azure Data Engineer with a passion for data and technology. She is Microsoft Certified Trainer and certified in Azure Data engineer and Azure Data Science. She is working on Azure services such as Logic Apps, Azure Functions, Azure Key Vault , Azure , Azure Data Factory, Azure Storage and Azure Data Lake .

Alpa is an Azure Data Engineer with a passion for data and technology. She is Microsoft Certified Trainer and certified in Azure Data engineer and Azure Data Science. She is working on Azure services such as Logic Apps, Azure Functions, Azure Key Vau... Show more

Gethyn Ellis

Gethyn Ellis

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 with migrations, high-availability design, performance engineering, analytics strategy, and data governance. A Microsoft Certified Trainer with over 200 courses delivered, he speaks widely on data transformation, analytics, and the future of AI-powered business.

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

Vlad Catrinescu

Vlad Catrinescu

Vlad is a Microsoft 365 and Power Platform expert specializing in empowering organizations to securely and effectively integrate AI-powered tools, such as Microsoft 365 Copilot and AI Agents, into their digital workplaces. An IT professional at heart, Vlad excels at preparing, securing, and governing modern environments, enabling IT administrators and business users to automate processes, enhance productivity, and drive digital transformation with confidence.

As a Microsoft Certified Trainer, author, and internationally recognized speaker, Vlad has trained millions of IT professionals globally through impactful workshops, engaging conference sessions, and accessible online resources. He has authored three books published by Apress and developed over 100 comprehensive courses on Pluralsight, covering Microsoft 365 administration, Microsoft 365 Copilot, Power Automate, and some of the most in-demand Microsoft certifications.

A Microsoft Most Valuable Professional (MVP) since 2013, Vlad regularly shares insights, best practices, and industry trends on his blog at VladTalksTech.com and YouTube channel at youtube.com/@VladTalksTech. Frequently featured as an expert contributor across leading industry platforms, Vlad has consistently been recognized among the "Top 25 SharePoint & Microsoft 365 Influencers," underscoring his significant impact within the global Microsoft community.

Vlad is a Microsoft 365 and Power Platform expert specializing in empowering organizations to securely and effectively integrate AI-powered tools, such as Microsoft 365 Copilot and AI Agents, into their digital workplaces. An IT professional at heart... Show more

Alex Rostan

Alex Rostan

Microsoft Bizz Apps MVP and seasoned technology leader with over 18 years of global experience designing and delivering intelligent solutions across diverse industries. As an AI Solutions Specialist and Power Platform Architect, Alex has been at the forefront of integrating Cognitive Services, developing enterprise-grade chatbots and Copilot solutions, and driving automation through RPA and low-code platforms. His expertise spans cloud architecture on Azure and Microsoft 365, with a strong focus on empowering organizations through innovation, scalability, and user-centric design. A passionate advocate for digital transformation, Alex combines technical excellence with a deep understanding of business needs to create impactful solutions that bridge people and technology.

AI Solutions Specialist / Copilot Studio / Copilot / Power Platform Architect / RPA / Cloud Architect / Azure / M365 /Fabric

Microsoft Bizz Apps MVP and seasoned technology leader with over 18 years of global experience designing and delivering intelligent solutions across diverse industries. As an AI Solutions Specialist and Power Platform Architect, Alex has been at the ... Show more

Jake Harvey

Jake Harvey

I lead the Automation team at Advania UK and support organisations in creating technology experiences that shift the responsibility of tasks to technology and bridge the gap between data and decisions.

10+ years experience in the Microsoft Partner eco-system delivering valuable solutions for clients. 5+ years Community conference speaker at events such as the Microsoft AI Tour, European Power Platform Conference and European SharePoint Conference.

I lead the Automation team at Advania UK and support organisations in creating technology experiences that shift the responsibility of tasks to technology and bridge the gap between data and decisions. 10+ years experience in the Microsoft Partne... Show more

Hafedh Messaoudi

Hafedh Messaoudi

Hafedh is a professional coach, agile coach, and trainer with over 12 years of experience in guiding individuals and organizations toward resilience, adaptability, and improved performance. With a strong foundation in neuroscience, agility, and human sciences, Hafedh integrates these disciplines to offer a comprehensive approach to personal and organizational development. His work focuses on helping teams and leaders navigate change and foster growth in dynamic environments. Throughout his career, Hafedh has been committed to empowering his clients with practical, science-based strategies for achieving long-term success.

Hafedh is a professional coach, agile coach, and trainer with over 12 years of experience in guiding individuals and organizations toward resilience, adaptability, and improved performance. With a strong foundation in neuroscience, agility, and human... Show more

Mirco Vanini

Mirco Vanini

Consultant focused on industrial and embedded solutions using .NET and other native SDKs with over 35 years of experience, XeDotNet community co-founder, speaker and Microsoft MVP since 2012. Passionate and curious about everything that revolves around the IoT world.

Consultant focused on industrial and embedded solutions using .NET and other native SDKs with over 35 years of experience, XeDotNet community co-founder, speaker and Microsoft MVP since 2012. Passionate and curious about everything that revolves arou... Show more

Saurav Jain

Saurav Jain

Saurav Jain, Apify's Developer Community Manager, excels in community building and devrel. With a history of growing Amplication's community to 40K, he now enhances Apify's developer engagement. An international speaker, he has contributed to PyCon Ireland, PyCon Italy, and more. His work bridges developers globally, fostering innovation and collaboration within the tech ecosystem. His expertise and passion for technology make him a pivotal figure in nurturing tech communities.

Saurav Jain, Apify's Developer Community Manager, excels in community building and devrel. With a history of growing Amplication's community to 40K, he now enhances Apify's developer engagement. An international speaker, he has contributed to PyCon I... Show more

Scott Sauber

Scott Sauber

Scott is the Director of Engineering at Lean TECHniques Inc. Besides advising clients and delivering solutions for them, he enjoys helping teams realize their potential through technical practices (such as CI/CD, TDD, IAC, etc.) and working more effectively (such as limiting WIP, visualizing work, etc).

He’s a Microsoft MVP, Redgate Community Ambassador, international speaker, Dometrain author, and co-organizes the Iowa .NET User Group. You can find Scott on Twitter @scottsauber, on Bluesky @scottsauber.com, or on his blog at scottsauber.com.

Scott is the Director of Engineering at Lean TECHniques Inc. Besides advising clients and delivering solutions for them, he enjoys helping teams realize their potential through technical practices (such as CI/CD, TDD, IAC, etc.) and working more effe... Show more

Gilles Pommier

Gilles Pommier

Gilles Pommier is a senior SharePoint Consultant and Office 365 MVP. During the last 15 years, he has helped numerous companies in their implementation for SharePoint architecture and development. Since 2005, he has also participated in several events such as SharePoint Saturday, SQL Saturday, Microsoft TechEd U.S., TechEd Australia, TechEd EMEA TechEd Dubai TechDays France as a speaker on Office 365, SharePoint, .Net and VSTO technologies.

Gilles Pommier is a senior SharePoint Consultant and Office 365 MVP. During the last 15 years, he has helped numerous companies in their implementation for SharePoint architecture and development. Since 2005, he has also participated in several even... Show more

Lara Newsom

Lara Newsom

In addition to the many conference talks I have given online and around the globe, I am an Angular GDE, NX Champion, and a co-host on the Angular Plus Show where we talk about all things Angular and Angular adjacent. During the day, I am a Senior Software Engineering Technical Leader at Cisco working full time on a large enterprise Angular application using NgRx state management and leveraging Nx Monorepos. I am always energized by sharing my knowledge and being part of the software engineering community. I specialize in talking about cats and random facts but also love talking about software.

In addition to the many conference talks I have given online and around the globe, I am an Angular GDE, NX Champion, and a co-host on the Angular Plus Show where we talk about all things Angular and Angular adjacent. During the day, I am a Senior Sof... Show more

Angeliki Patsiavou

Angeliki Patsiavou

I am a Microsoft Business Applications MVP and Prosci® certified, Dynamics 365 and Power Platform functional lead. My experience is in business applications, CRM operations and enterprise change. With a FTSE 100 client background in Financial Services, CRM and Marketing across Microsoft, Adobe, and Salesforce platforms, I manage global transformation and adoption programs with deep human impact. I am also a speaker in the Microsoft Community, advocating as a human evangelist about user-centered design and enabling governance.

I am a Microsoft Business Applications MVP and Prosci® certified, Dynamics 365 and Power Platform functional lead. My experience is in business applications, CRM operations and enterprise change. With a FTSE 100 client background in Financial Service... Show more

Krzysztof Kania

Krzysztof Kania

Passionate about leveraging the power of Microsoft 365 ecosystem. Committed to delivering top tier services and solutions that empower productivity. My dedication to staying abreast to the latest tools and maintains a high level of integrity has not only facilitated to transformation through technology but also contributed to the ongoing pursuit of excellence in my field.

Passionate about leveraging the power of Microsoft 365 ecosystem. Committed to delivering top tier services and solutions that empower productivity. My dedication to staying abreast to the latest tools and maintains a high level of integrity has not ... Show more

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

Brennan Lodge

Brennan Lodge

He has held cyber security, data scientist, and leadership roles at JP Morgan Chase, the Federal Reserve Bank of New York, Bloomberg, and Goldman Sachs. Brennan holds a masters' degree in Business Analytics from New York University and participates in the data science community with his non-profit pro-bono work at DataKind.

He has held cyber security, data scientist, and leadership roles at JP Morgan Chase, the Federal Reserve Bank of New York, Bloomberg, and Goldman Sachs. Brennan holds a masters' degree in Business Analytics from New York University and participates i... Show more

Jamel Abed

Jamel Abed

Jamel Abed is a Microsoft MVP in Microsoft 365 Development and SharePoint, Senior Developer Advocate, and International Speaker with over 17 years of experience in architecting, building, and migrating enterprise-scale solutions.

He has successfully delivered projects across multiple industries, including Banking, Finance, Energy, Insurance, Healthcare, Aerospace, Defense, and Government, leveraging the full power of Microsoft 365, SharePoint, Power Platform, Azure, and SharePoint Embedded.

As a Solutions Architect and Developer Advocate, Jamel is passionate about empowering developers, promoting clean code, and driving product adoption. He specializes in designing end-to-end solutions across the Microsoft ecosystem, transforming complex business requirements into secure, scalable, and efficient technology solutions.

Ranked #1 Global Speaker on CommunityDays.org, Jamel regularly speaks at international conferences on topics such as SharePoint Embedded, AI integration, and cost optimization for data management. He is also a community leader and mentor, dedicated to fostering innovation and collaboration within the global tech community.

Jamel Abed is a Microsoft MVP in Microsoft 365 Development and SharePoint, Senior Developer Advocate, and International Speaker with over 17 years of experience in architecting, building, and migrating enterprise-scale solutions. He has successful... Show more

Funke Olasupo

Funke Olasupo

Funke Olasupo is a seasoned Technical Writer with a proven track record of simplifying complex software and developer tools into clear user and developer-focused technical documentation. She currently works at Rocket.Chat which is an open-source communication platform, where she champions various documentation efforts for developer and user-facing products.

Her career spans across fintech, secure collaboration, and developer tooling where she crafts API docs, technical tutorials, user guides, and in-product help systems that serve diverse audiences across industries.

Previously, she worked with OpenFoodFacts and Macrometa and has contributed as a guest author to platforms like Twilio, Honeybadger, and ButterCMS through backend engineering tutorials and documentation.

Beyond her work in tech writing, Funke is deeply involved in developer community growth. As a Google Developer Groups (GDG) co-organizer and Women Techmakers (WTM) Ambassador, she co-organizes developer meetups and women-in-tech events that promote diversity, inclusion, and continuous technical learning in the African tech ecosystem.

Funke’s work stands at the intersection of technical communication, open-source advocacy, and community empowerment, making her a valuable voice in Africa’s fast-growing tech space.

Funke Olasupo is a seasoned Technical Writer with a proven track record of simplifying complex software and developer tools into clear user and developer-focused technical documentation. She currently works at Rocket.Chat which is an open-source com... Show more

Valeria Salis

Valeria Salis

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 recognized speaker at major tech conferences and co-founded Green Software Italia community. I believe in responsible technology that creates positive impact for both businesses and the environment.

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

Heidi Hasting

Heidi Hasting

Heidi Hasting is a Business Intelligence professional and former software developer with over seven years experience in Microsoft products. She is an ALM/DLM enthusiast and Azure DevOps fan and co-founder and organiser of the Adelaide Power BI User Group. Heidi is a regular attendee at tech events including Azure Bootcamps, DevOps days, SQLSaturdays, Difinity and PASS Summit.

Heidi Hasting is a Business Intelligence professional and former software developer with over seven years experience in Microsoft products. She is an ALM/DLM enthusiast and Azure DevOps fan and co-founder and organiser of the Adelaide Power BI User G... Show more

Daniel Patkos

Daniel Patkos

I began my career as a business and technology consultant, quickly transitioning into implementation and BI development. I’ve used several BI tools along the way—Tableau, Domo, and Spotfire—but Power BI has been the core of my work for many years.

My focus started with data visualization and clear data communication, and has grown to include data architecture and development practices. I’m currently working with Microsoft Fabric and promoting the use of source control and CI/CD to improve the Power BI development lifecycle.

I began my career as a business and technology consultant, quickly transitioning into implementation and BI development. I’ve used several BI tools along the way—Tableau, Domo, and Spotfire—but Power BI has been the core of my work for many years. ... Show more

Paolo Insogna

Paolo Insogna

Node.js TSC Member, Principal Engineer at Platformatic, Polyglot Developer. RPG and LARP addicted and nerd on lot more. Surrounded by lovely chubby cats.

Node.js TSC Member, Principal Engineer at Platformatic, Polyglot Developer. RPG and LARP addicted and nerd on lot more. Surrounded by lovely chubby cats. Show more

Mónica Mesa

Mónica Mesa

Soy Mónica, una auténtica #datalover que disfruta aprendiendo, compartiendo y, sobre todo, sacándole partido a los datos. Me encanta convertir números en historias que no solo hablen, ¡sino que griten! Mi día a día gira en torno a Power BI y Microsoft Fabric, en esa magia que tiene la analítica inteligente. ¿Mi superpoder? Hacer que hasta el modelo más técnico sea algo divertido.

Microsoft MVP en Data Platform y co-organizadora de Women in Fabric y del Fabric User Group ESP, además de participar en la organización de otros eventos de comunidad como los Power BI Days 2025.

También me gusta trastear con inteligencia artificial, Python, SQL, Machine Learning y PySpark, porque al final, ¿quién puede resistirse a un buen reto técnico?

Cuando no estoy entre datos, modelos y reuniones proponiendo ideas locas, me encontrarás planificando el próximo viaje, con un plato bien picante delante o haciendo fotos como una obsesa. Ah, y contando chistes malos, porque alguien tiene que romper el hielo, ¿no?

Compartir conocimientos y conectar con comunidades de datos es lo que realmente me llena. Los datos y la tecnología no solo nos hacen trabajar mejor, también pueden cambiar cómo vivimos y entendemos el mundo.

Soy Mónica, una auténtica #datalover que disfruta aprendiendo, compartiendo y, sobre todo, sacándole partido a los datos. Me encanta convertir números en historias que no solo hablen, ¡sino que griten! Mi día a día gira en torno a Power BI y Microsof... 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.