Most Active Speakers 2025

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

  • 1125 speakers
  • Auto-generated
Ana Maria Mihalceanu

Ana Maria Mihalceanu

Ana is a Java Champion Alumni, Senior Developer Advocate for the Java Platform Group at Oracle, with an extensive background in Java and cloud development, while contributing to Java community growth and events. Her exposure to varied technical challenges involving Java-based frameworks has endowed her with deep insights into the evolution of the JDK tools, practical use, and advanced features. To learn more about/from her, follow her on Twitter @ammbra1508.

Ana is a Java Champion Alumni, Senior Developer Advocate for the Java Platform Group at Oracle, with an extensive background in Java and cloud development, while contributing to Java community growth and events. Her exposure to varied technical chall... Show more

Lucien Immink

Lucien Immink

A former Java developer that saw the light and embraced Clippy as his digital overlord.
Over two decades in the front-end field has taught Lucien how we often reinvent the wheel to accommodate new shiny frameworks.
Now, as a Principal Consultant, his mission is to discover elegant solutions for his clients. While we’ve moved beyond Flash and jQuery, the web platform technologies: HTML, CSS, and JavaScript remain essential. Rather than battling the platform, let’s embrace it.
Lucien is a rewarded Google Developer Expert for Web Technologies and capabilities since 2022.

A former Java developer that saw the light and embraced Clippy as his digital overlord. Over two decades in the front-end field has taught Lucien how we often reinvent the wheel to accommodate new shiny frameworks. Now, as a Principal Consultant, h... Show more

Femke Cornelissen

Femke Cornelissen

Femke Cornelissen is Chief Copilot at Wortell. She is also the founder of Dutch Women in Tech (DWIT). Femke's goal with DWIT is to connect women in tech and help to inspire young women to choose a job in IT. Women can connect through the community in Microsoft Teams and various on- and offline events.

Femke is also a Microsoft 365 blogger with only Dutch content. Her goal is to organize, speak and attend conferences to learn, connect and share knowledge with others.

Find out more at www.femkecornelissen.com

Femke Cornelissen is Chief Copilot at Wortell. She is also the founder of Dutch Women in Tech (DWIT). Femke's goal with DWIT is to connect women in tech and help to inspire young women to choose a job in IT. Women can connect through the community in... Show more

Thorsten Pickhan

Thorsten Pickhan

I work as Cloud Architect at glueckkanja AG where I am responsible to plan and deploy UC infrastructures based on Microsoft technologies. I'm working as technician and consultant for more than 15 years and been specialized in Microsoft Lync/Skype for Business and Microsoft Teams for 8 years. From beginning of my UC consultant career, I was focused on Enterprise Voice implementations.
Since a few years I am co-organizer of the Microsoft Teams User Group Germany and involved in the community as speaker and blog post author. In March 2020, I started my own Office 365 YouTube channel where I publish on a regular basis new video content for my weekly “Office 365 QuickTipps” channel. In a further YouTube project, together with my friend Michael Plettner, we release a German Microsoft 365 Talk.
Since July 2021, I have been a Microsoft MVP for Microsoft 365 in recognition of my commitment to the Microsoft Tech Community.

I work as Cloud Architect at glueckkanja AG where I am responsible to plan and deploy UC infrastructures based on Microsoft technologies. I'm working as technician and consultant for more than 15 years and been specialized in Microsoft Lync/Skype for... Show more

Jörgen Nilsson

Jörgen Nilsson

Jorgen is working as a principal consultant at Onevinn in Sweden. He has been working as a consultant since 1993 with a focus on Enterprise Client Management and System Management. Involved in many projects and also a Microsoft Certified Trainer, Microsoft Security MVP and Windows and Devices MVP, deliver training's mostly on Intune and Windows 11. Jörgen is also an appreciated speaker at event like Microsoft Ignite, Microsoft Techdays, Microsoft Management Summit(MMS), TechED, Techorama, TechMentor and Workplace Ninjas.

Jorgen is working as a principal consultant at Onevinn in Sweden. He has been working as a consultant since 1993 with a focus on Enterprise Client Management and System Management. Involved in many projects and also a Microsoft Certified Trainer, Mic... Show more

Julien Topçu

Julien Topçu

Julien is a hands-on CTO with 15 years of experience, specializing in Domain-Driven Design (#DDD). His expertise lies in helping organizations build systems that deliver high business value. Julien focuses on aligning organizational structure, architecture and software practices with business objectives. As a member of the OWASP foundation, he actively promotes application security best practices. An international speaker, Julien enjoys sharing his knowledge with others.

Julien is a hands-on CTO with 15 years of experience, specializing in Domain-Driven Design (#DDD). His expertise lies in helping organizations build systems that deliver high business value. Julien focuses on aligning organizational structure, archit... Show more

Hafsa El Maizi

Hafsa El Maizi

Développeuse et facilitatrice passionnée depuis plus de 7 ans, je vois la tech comme un terrain d’apprentissage continu, où le code, les humains et les processus se rencontrent, et parfois s’entrechoquent, pour produire du sens.

Je m’intéresse aux pratiques Craft, DevOps et agiles, mais aussi à ce que l’on appelle trop souvent les “soft skills”. Pour moi, la performance d’une équipe repose autant sur la qualité du code que sur la clarté des intentions, la qualité des interactions et la sécurité psychologique.

Dans mes conférences, j’aime éclairer les angles morts, démystifier les bases et ouvrir des espaces de réflexion concrets, avec un goût assumé pour la nuance, la pédagogie et tout ce qui rend les pratiques techniques plus humaines.

Développeuse et facilitatrice passionnée depuis plus de 7 ans, je vois la tech comme un terrain d’apprentissage continu, où le code, les humains et les processus se rencontrent, et parfois s’entrechoquent, pour produire du sens. Je m’intéresse aux... Show more

Alison Cossette

Alison Cossette

Alison Cossette is founder and CEO of ClariTrace, where she's building graph-based intelligence for AI systems. Her work spans AI governance, physical AI, and retrieval research—she recently won "Most Impressive Project" at Physical AI Hack 2026 for a VLA-powered robot that reads books to children. Alison serves on the US NIST Generative AI Public Working Group and has studied AI and Data Science at Northwestern University at the Master's level. She speaks globally on building AI systems that are capable, controllable, and worth trusting.

Alison Cossette is founder and CEO of ClariTrace, where she's building graph-based intelligence for AI systems. Her work spans AI governance, physical AI, and retrieval research—she recently won "Most Impressive Project" at Physical AI Hack 2026 for ... Show more

Shawn Wildermuth

Shawn Wildermuth

Shawn Wildermuth has been tinkering with computers and software since he got a Vic-20 back in the early ‘80s. As a Microsoft MVP since 2003. He’s the author of over twenty Pluralsight courses, written eight books, has a popular YouTube channel, and is one of the Wilder Minds. You can reach him at his blog at http://wildermuth.com.

As a filmmaker, he creates documentaries including a feature-length, documentary about software developers today called “Hello World: The Film”. You can see more about it at http://twainfilms.com.

Shawn Wildermuth has been tinkering with computers and software since he got a Vic-20 back in the early ‘80s. As a Microsoft MVP since 2003. He’s the author of over twenty Pluralsight courses, written eight books, has a popular YouTube channel, and i... Show more

Sander Hoogendoorn

Sander Hoogendoorn

Sander Hoogendoorn is an independent dad, avid traveler, and lifelong software developer. With over 40 years of hands-on coding experience under his belt, he still ships code every day — because once a developer, always a developer.

Currently the CTO at iBOOD, Sander has led technology at companies such as ANVA, Quby, and Klaverblad, and was once Capgemini’s global agile thought leader. But don’t expect corporate buzzwords — Sander’s known for cutting through the fluff with a post-agile mindset and a healthy disregard for outdated best practices.

He helps teams and organizations break rules that need breaking — replacing heavyweight processes with lightweight thinking, and agile dogma with actual flow. If something’s slowing your team down, chances are he’s already ranted about it in a keynote.

Onstage, Sander brings code, stories, and sharp insights — whether he’s talking disruption, continuous delivery, microservices, monads (yes, really), software architecture, or the lost art of elegant code. His talks are fast-paced, thought-provoking, and never just theory.

Sander believes in small steps, critical thinking, and building stuff that works. No silver bullets. Just better software, made by better teams.

Sander Hoogendoorn is an independent dad, avid traveler, and lifelong software developer. With over 40 years of hands-on coding experience under his belt, he still ships code every day — because once a developer, always a developer. Currently the ... Show more

Jens Vestergaard

Jens Vestergaard

Jens is Head of Product, CatMan at Redslim, driving the BI as a Service team as well as custom build & deliver projects.
The tech stack is wide, as Jens has a couple of decades in the industry, focusing on mainly Business Intelligence tools, but is also keen on Powershell, C#, Azure and Microsoft Fabric in general.
Jens is 9 years in a row Microsoft Data Platform MVP and a frequent speaker at both local and international events.

Jens is Head of Product, CatMan at Redslim, driving the BI as a Service team as well as custom build & deliver projects. The tech stack is wide, as Jens has a couple of decades in the industry, focusing on mainly Business Intelligence tools, but is ... 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

Dr. Neda Maria Kaizumi

Dr. Neda Maria Kaizumi

Dr. Neda Maria Kaizumi is a distinguished technology expert at the intersection of AI development, global compliance, and international regulations. With a doctorate in Organizational Behaviour. She combines a rich academic foundation with practical insights. She has further honed her expertise through the Business Analytics and Data Science executive program at Harvard Business School.

Dr. Kaizumi is ISO standards committee member, and she shapes AI governance and compliance frameworks, advocating ethical AI aligned with global standards like the EU AI Act and beyond.

An accomplished author, public speaker, and advocate for ethical AI development, Dr. Kaizumi integrates her technical acumen and business expertise to empower organizations navigating the complex global landscape of AI governance. With a deep understanding of regulatory frameworks and their impact on technology, Dr. Kaizumi is a leading voice in fostering innovation that aligns with compliance and sustainability.

Dr. Neda Maria Kaizumi is a distinguished technology expert at the intersection of AI development, global compliance, and international regulations. With a doctorate in Organizational Behaviour. She combines a rich academic foundation with practical ... Show more

Andres Almiray

Andres Almiray

Andres is a Java/Groovy developer and a Java Champion, with more than 2 decades of experience in software design and development. He has been involved in web and desktop application development since the early days of Java. Andres is a true believer in open source and has participated on popular projects like Groovy, Griffon, and DbUnit, as well as starting his own projects. Founding member of the Griffon framework and Hackergarten community event. Author of JReleaser.

Andres is a Java/Groovy developer and a Java Champion, with more than 2 decades of experience in software design and development. He has been involved in web and desktop application development since the early days of Java. Andres is a true believer ... Show more

Karl-Henrik Nilsson

Karl-Henrik Nilsson

Karl-Henrik "KH" Nilsson is a turbulently enthusiastic and unstoppably curious Swedish software developer with a soft spot for the software community. Having worked with everything from web applications to cellphone towers has given him a very particular set of skills and the habit of breaking out a soldering iron to solve the oddest of problems.

Today Karl-Henrik is a former MVP and Ex Microsoft Cloud Solution Architect that works in Dubai as a Senior Technical Architect at GAC! He focuses predominately on Azure and cloud technology and blogs at http://karl-henrik.se

Karl-Henrik "KH" Nilsson is a turbulently enthusiastic and unstoppably curious Swedish software developer with a soft spot for the software community. Having worked with everything from web applications to cellphone towers has given him a very partic... Show more

Jorge Fernández Sánchez

Jorge Fernández Sánchez

👋 ¡Hola! Soy Jorge Fernández, un apasionado de la tecnología con más de 21 años de experiencia en el ecosistema Microsoft. A lo largo de mi carrera, he trabajado como desarrollador y líder de equipo, impulsando proyectos innovadores y ayudando a empresas a potenciar sus soluciones con tecnologías de vanguardia.

Me motiva el aprendizaje continuo y el intercambio de conocimientos, lo que me llevó a fundar @guarandingaTECH y compartir contenido en #AzureBrains y Global AI Spain Madrid. Mi compromiso con la comunidad es inquebrantable, siempre explorando nuevas formas de conectar, enseñar y seguir creciendo juntos. 🚀

👋 ¡Hola! Soy Jorge Fernández, un apasionado de la tecnología con más de 21 años de experiencia en el ecosistema Microsoft. A lo largo de mi carrera, he trabajado como desarrollador y líder de equipo, impulsando proyectos innovadores y ayudando a emp... Show more

Marcel Meurer

Marcel Meurer

Marcel Meurer has a vast history in IT Consulting and the development of solutions and tools. Today, he is Vice President for Azure Solutions at LoginVSI and has a long history of doing and leading professional IT services.

His technical focus is on Microsoft Azure platform services, and he has been recognized as a Microsoft Azure MVP since 2016, having also been honored with the Azure Virtual Desktop MVP award.

Since 2021, Marcel has also run the company ITProCloud GmbH. The company focuses on delivering cloud-based solutions for all types of companies. The well-known solutions for managing Azure Virtual Desktop easily and automatically are Hydra for Azure Virtual Desktop or WVDAdmin. ITProCloud was acquired in 2025 by LoginVSI, which continues to create the right solution for the right purpose and make it available to customers.

Marcel's journey in the IT industry began in the early 1990s, a time when personal computers were just emerging (and before that, the Commodore 64 was the norm). His focus on assembler and hardware-related programming, particularly in the context of the IoT of the 1990s, showcases his early dedication and passion for the field.

In 1995, he began studying electrical engineering. During his studies, machine learning and neural networks were among his favorite topics. In addition to his studies, he worked for a small computer company in Aachen, where he developed operating systems and applications using automated methods on multiple computers.

Marcel Meurer graduated with a degree in electrical engineering from the University of Applied Sciences Aachen.

Marcel Meurer has a vast history in IT Consulting and the development of solutions and tools. Today, he is Vice President for Azure Solutions at LoginVSI and has a long history of doing and leading professional IT services. His technical focus is ... Show more

Chris DeMars

Chris DeMars

Chris DeMars is a Senior Developer Advocate with over 20 years of technical experience. He speaks all over the world on web accessibility, feature flags, A/B testing, and CSS. For his community contributions, he holds awards as a Progress Champion and former Microsoft MVP, Google Developer Expert, Cloudinary Media Developer Expert, and Auth0 Ambassador. When he is not working on making the web great and accessible you can find him fishing, on the paintball field, rating Detroit Style pizza, and looking for UFO's.

Chris DeMars is a Senior Developer Advocate with over 20 years of technical experience. He speaks all over the world on web accessibility, feature flags, A/B testing, and CSS. For his community contributions, he holds awards as a Progress Champion an... Show more

Jimmy Engström

Jimmy Engström

Jimmy Engström has been developing ever since he was 7 years old and got his first computer.
He loves to be on the cutting edge of technology, trying new things.
When he got wind of Blazor, he immediately realized its potential and adopted it when it was in beta. He has been running Blazor in production since it was launched by Microsoft.
He is the author of "Web Development with Blazor" and the co-host of Coding After Work (podcast and stream).
His passion for the .NET industry and community has taken him around the world, speaking about development. Microsoft has recognized this passion by awarding him the
Microsoft Most Valuable Professional award 11 years in a row.
He occasionally blogs at engstromjimmy.com.

codingafterwork.com

Jimmy Engström has been developing ever since he was 7 years old and got his first computer. He loves to be on the cutting edge of technology, trying new things. When he got wind of Blazor, he immediately realized its potential and adopted it when... Show more

Emanuele Bartolesi

Emanuele Bartolesi

I'm a GitHub Technical Lead, and I'm passionate about front-end technologies and everything related to the cloud, especially Microsoft Azure.
I live in Zurich and actively participate in local and international community activities and events.

I share my love for technology through my blog https://www.emanuelebartolesi.com.
I also became a Twitch Affiliate as a live coder, and you can follow me at https://twitch.tv/kasuken to write some code together.

Microsoft MVP (12x)
GitHub Star ⭐ (4x)
GitHub Star of the Year 2023

I'm a GitHub Technical Lead, and I'm passionate about front-end technologies and everything related to the cloud, especially Microsoft Azure. I live in Zurich and actively participate in local and international community activities and events. I ... Show more

Annelore Egger

Annelore Egger

Annelore is a passionate software developer from Switzerland who values high-quality code, likes working in teams, and sharing her knowledge. She also likes to meet new people, so if you see her around, feel free to say hi!

Annelore is a passionate software developer from Switzerland who values high-quality code, likes working in teams, and sharing her knowledge. She also likes to meet new people, so if you see her around, feel free to say hi! Show more

Halil İbrahim Kalkan

Halil İbrahim Kalkan

I am a software architect and developer. I love to work on open source projects, producing articles, videos and giving talks on software development.

I'm the lead developer of the ABP framework (see https://github.com/abpframework/abp and https://abp.io/)

I'm mostly interested in developing reusable frameworks & libraries, distributed systems, multi-threaded and scalable solutions. I'm talking at local and international conferences about multi-tenancy, microservice architecture, domain-driven design, modular systems and developer tools.

Visit my website to see a list of my previous talks: https://halilibrahimkalkan.com

I am a software architect and developer. I love to work on open source projects, producing articles, videos and giving talks on software development. I'm the lead developer of the ABP framework (see https://github.com/abpframework/abp and https://... Show more

Sami Laiho

Sami Laiho

Sami Laiho is one of the world's leading professionals in the Windows OS and Security. Sami has been working with and teaching OS troubleshooting, management, and security since 1995. Sami's session was evaluated as the best session in TechEd North America, Europe and Australia in 2014, and Nordic Infrastructure Conference in 2016, 2017, 2019, 2020, 2022, 2023, 2024 and 2025 (Keynote for NIC).

At Ignite 2018 Sami's sessions were ranked as #1 and #2 out of 1708 sessions!! This was the first time in the history of the conference that anyone has been able to do this!

Sami is also an author at PluralSight and the conference chair for the TechMentor and "Cyber Security and Ransomware Live!" conferences.

More info at: https://samilaiho.com/

Sami Laiho is one of the world's leading professionals in the Windows OS and Security. Sami has been working with and teaching OS troubleshooting, management, and security since 1995. Sami's session was evaluated as the best session in TechEd North A... Show more

Vjekoslav Babic

Vjekoslav Babic

Vjekoslav Babić (Vjeko) is a Business Central architect, developer, trainer, author and blogger with over three decades of IT experience, two of which have been spent in the Business Central ecosystem.

His passion lies in web and mobile technologies, but deep down he's an incurable hacker who loves writing code and breaking things apart to see how they work.

As a frequent conference speaker and blogger, Vjeko pushes the boundaries of what's possible, connecting Business Central with anything that can be plugged into it through obscure loopholes or undocumented interfaces, especially when they're not meant to be used that way. In his view, nothing is really meant for any particular purpose, and figuring out how to make things useful beyond their intended design is the meaning of life.

Since 2010, Vjeko has been awarded the Microsoft Dynamics NAV MVP. You can find him at his blog "Vjeko.com - ideas in the cloud".

Vjekoslav Babić (Vjeko) is a Business Central architect, developer, trainer, author and blogger with over three decades of IT experience, two of which have been spent in the Business Central ecosystem. His passion lies in web and mobile technologi... Show more

Tom Martens

Tom Martens

Thomas "Tom" Martens is a Microsoft Data Platform MVP and Solution Architect at Munich Re. With over 25 years of experience delivering Business Intelligence, Data Warehousing, and Analytics solutions, Tom specializes in helping organizations tackle analytical challenges using Microsoft Fabric and Power BI. Alongside his full-time role, he offers freelance consulting for data platform and analytics projects. Tom is a regular speaker at international conferences and user group meetings, and co-author of the book Pro DAX with Power BI.

Thomas "Tom" Martens is a Microsoft Data Platform MVP and Solution Architect at Munich Re. With over 25 years of experience delivering Business Intelligence, Data Warehousing, and Analytics solutions, Tom specializes in helping organizations tackle a... Show more

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

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

Markus Ehrenmueller-Jensen

Markus Ehrenmueller-Jensen

​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 professor of databases and project engineering at HTL Leonding, a technical college. He is also certified in PL-300 (Power BI Data Analyst), DP-203 (Azure Data Engineer Associate Certification), DP-600 (Fabric Analytics Engineer Associate), and DP-700 (Fabric Data Engineer Associate).

Markus actively contributes to the global data community, speaking regularly at international conferences such as SQL Bits in London, Power BI Next Step in Copenhagen, Data Saturdays throughout Europe, and SQL Days. He co-founded SQL PASS Austria in 2013 and the Power Platform User Group Austria in 2016; both organizations merged in 2021 to form Data Community Austria. Since 2014, he has organized Data Community Austria Day in Vienna, fostering knowledge sharing among data professionals. In recognition of his technical leadership and community involvement, Markus has been honored as a Microsoft Data Platform Most Valuable Professional (MVP) since 2017.​

In addition to his speaking engagements, Markus contributes articles to reputable journals and has authored the book "Data Modeling with Microsoft Power BI," published in June 2024.

​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

Stefan Rapp

Stefan Rapp

Stefan is a Principal Cloud Solution Architect (CSA) at Xebia Germany and a Microsoft MVP for Azure Infrastructure as Code and Azure Networking. He supports enterprise organizations in designing scalable, secure, and automated Azure platforms. His expertise includes cloud architecture, migrations & modernizations, Infrastructure as Code (IaC), and automation using Terraform and Ansible, enabling teams to accelerate cloud transformation through practical, engineering-driven solutions.

Stefan is a Principal Cloud Solution Architect (CSA) at Xebia Germany and a Microsoft MVP for Azure Infrastructure as Code and Azure Networking. He supports enterprise organizations in designing scalable, secure, and automated Azure platforms. His ex... Show more

Tanya Gupta

Tanya Gupta

Tanya is an Author, LinkedIn Top Voice, and AVP at Barclays. A renowned Agile project management expert, cybersecurity specialist, and technology leader, Tanya has inspired thousands with her insights on STEM education, leadership, and innovation. As a Certified Scrum Master and Business Analyst, she has helped businesses optimize project delivery and foster collaboration.

Her book, Discovering The Silver Bullet, offers valuable lessons on Agile transformation and project management. Tanya is also a mentor at AnitaB.org and a WIFM Wolfpack Facilitator, empowering professionals worldwide.

Tanya is an Author, LinkedIn Top Voice, and AVP at Barclays. A renowned Agile project management expert, cybersecurity specialist, and technology leader, Tanya has inspired thousands with her insights on STEM education, leadership, and innovation. As... 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.