Most Active Speakers 2025

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

  • 1125 speakers
  • Auto-generated
Andrew Madson

Andrew Madson

Andrew Madson leads Developer Relations at Fivetran, 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 Fivetran, 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

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

Peter Eijgermans

Peter Eijgermans

Peter Eijgermans is a long-time software developer and an adventurous and passionate CodeSmith Frontend at Sopra Steria. He likes to travel around the world with his bike. Always seeking for the unexpected and unknown. For his job he tries out the latest techniques and frameworks. He loves to share his experience by speaking at conferences all over the World and writing for the Dutch Java magazine, Medium and DZone. He believes that you as the front-end developer are the spider in the web to bring the user, the team and the product together.

Peter Eijgermans is a long-time software developer and an adventurous and passionate CodeSmith Frontend at Sopra Steria. He likes to travel around the world with his bike. Always seeking for the unexpected and unknown. For his job he tries out the la... Show more

Nikos Delis

Nikos Delis

Microsoft Certified x6, MVP for Azure & IoT, Senior Cloud Architect and tech enthusiast. Passionate about software architecture and solution design.

During my 10+ years of hands-on experience in Software Engineering, I have primarily focused on .NET-based solutions and Azure as a cloud-services provider. I have worked with pretty much all kinds of applications, from small Windows Forms tools to large-scale enterprise web-based solutions. The more I code, the more I realize that my true passion is solution design and software architecture, regardless of tech-stack and platform.

Sharing knowledge and insights is the finest thing I know and the one thing I love the most in the IT community.

Microsoft Certified x6, MVP for Azure & IoT, Senior Cloud Architect and tech enthusiast. Passionate about software architecture and solution design. During my 10+ years of hands-on experience in Software Engineering, I have primarily focused on .N... Show more

David Whitney

David Whitney

David is the Director of Architecture for NewDay, and the founder of Electric Head Software. Focusing on iterative software delivery, developer mentoring and cultural change - mostly working with London-based organisations.

He speaks about software design, culture, and ethics in technology - rounded out by an assortment of talks about software that probably doesn't need to exist but makes the world a little more fun. David has previously served as the chief coding technical architect for JustGiving and helped market-leading organisations including JUST-EAT, Trainline and Vodafone improve their technical capabilities.

David is a Microsoft MVP, has been part of the OpenUK Honours list for open-source advocacy, and is a twice bestselling author of children's books about programming.

You can find his open-source projects on NuGet, npm and GitHub, follow him on Twitter @david_whitney, or check out his technical blog at http://www.davidwhitney.co.uk/Blog.

http://www.electricheadsoftware.com
http://www.davidwhitney.co.uk

David is the Director of Architecture for NewDay, and the founder of Electric Head Software. Focusing on iterative software delivery, developer mentoring and cultural change - mostly working with London-based organisations. He speaks about softwar... Show more

Tom van den Berg

Tom van den Berg

Tom van den Berg is a lead developer at Info Support.
As a developer he is part of a team that realizes new and innovative solutions.
Tom likes to think outside of the box and he gets a lot of energy from sharing knowledge and encourage other people to think outside of the box.

Tom van den Berg is a lead developer at Info Support. As a developer he is part of a team that realizes new and innovative solutions. Tom likes to think outside of the box and he gets a lot of energy from sharing knowledge and encourage other peopl... 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

Jannik Reinhard

Jannik Reinhard

My name is Jannik Reinhard and I'm 28 years old. I work as Head of AI & Lead Epic Fusion Germany GmbH — the German arm of Epic Fusion AG, a Swiss Microsoft consultancy founded in 2021 in Bern. Epic Fusion is won the global Microsoft Partner of the Year 2024 and helps organizations build secure, cloud-native digital workplaces by uniting people, processes, and Microsoft technology under the philosophy "digital first, humans not second." Core offerings include Modern Workplace transformation on Microsoft 365, Cloud Security & Zero Trust, AI solutions, business automation and Managed Workplace services.

I hold dual Microsoft MVP status in Security (Intune) and AI Platform (Microsoft Foundry) — one of very few MVPs worldwide recognized in both disciplines simultaneously.

Before Epic Fusion, I spent 11 years at BASF, the world's largest chemical company. Starting with an IT apprenticeship, I advanced to Senior Solution Architect for Modern Device Management and Technical Lead/Lead Architect for AIOps. There I designed and built an enterprise AI framework from scratch that reached 70,000+ active users and supported IT operations for over 120,000 employees — focused on detecting and resolving issues proactively before they reach the end user.

I'm equally passionate about community and knowledge sharing. I write at jannikreinhard.com and have contributed to technical books and open-source projects.
I regularly speak at international events including
- MMS
- Workplace Ninjas
- Modern Endpoint Management Summit
- ESPC
- Experts Lives
- NIC
- CloudX
- Global AI Bootcamp
- Cloud Technology Townhall Tallinn
... and many more.

My name is Jannik Reinhard and I'm 28 years old. I work as Head of AI & Lead Epic Fusion Germany GmbH — the German arm of Epic Fusion AG, a Swiss Microsoft consultancy founded in 2021 in Bern. Epic Fusion is won the global Microsoft Partner of the Ye... Show more

Geert van der Cruijsen

Geert van der Cruijsen

Geert van der Cruijsen is the CEO of Zure Netherlands, helping companies improve how they build software by combining strong engineering culture with modern technology. He focuses on DevOps, cloud-native development, architecture and AI, enabling teams to work more autonomously and deliver faster through smart platforms and better ways of working. Geert is a long-time Microsoft MVP and an active member of the tech community, frequently sharing knowledge through talks, content and mentorship.

Geert van der Cruijsen is the CEO of Zure Netherlands, helping companies improve how they build software by combining strong engineering culture with modern technology. He focuses on DevOps, cloud-native development, architecture and AI, enabling tea... Show more

Javier Villegas

Javier Villegas

Javier Villegas is IT Director (DBA & BI Services) at Mediterranean Shipping Company with 30 years of experience working with SQL Server, Including Azure SQL.
His specialization is Administration, Performance Tuning, High Availability and Disaster Recovery.
Javier is a Microsoft MVP Data Platform since 2016 and MCT
He is a frequent speaker in technical conferences and events such as SQL Saturdays, PASS Virtual Groups, PASS Marathons, 24 Hours SQL PASS , vOpen , GroupBy , Data Saturdays and Azure Global Bootcamps.
He is one of the group leaders of SQL Argentina Community and former Microsoft Azure Data Advisory Board Member

Javier Villegas is IT Director (DBA & BI Services) at Mediterranean Shipping Company with 30 years of experience working with SQL Server, Including Azure SQL. His specialization is Administration, Performance Tuning, High Availability and Disaster ... Show more

Arin Roy

Arin Roy

As a Principal Architect with a specialization in Azure and AI, Arin excels at pioneering new services in Azure, bringing innovative solutions to his clients.

He is dedicated to keeping the developer community updated with new technology, advocating for best practices, and fostering a culture of continuous learning and innovation.

He combines his expertise in Azure and AI with a passion for mentoring and leadership, driving technological excellence and community engagement. He is also deeply passionate about the Microsoft Development Ecosystem and .NET, integrating these technologies seamlessly into his projects to deliver optimal results.

As a Principal Architect with a specialization in Azure and AI, Arin excels at pioneering new services in Azure, bringing innovative solutions to his clients. He is dedicated to keeping the developer community updated with new technology, advocati... Show more

Adele Carpenter

Adele Carpenter

Adele is a Software Engineer and Consultant at Trifork Amsterdam where she is working on systems for the educational sector. Most of her work day is spent in the JVM/Spring and React ecosystems, although increasingly she plays a pivotal role as trusted advisor to Trifork’s customers.

Adele is an experienced international speaker, having spoken at multiple editions of NDC, goto, Devoxx and JavaZone. As a speaker, she uses her exposure to real-world customer projects, experiences outside of tech and passion for story-telling to distill complex ideas into their essential parts. All with an air of good humour.

When she’s not at her computer or on stage, you can find her in the gym pumping some serious iron as she pursues the sport of powerlifting.

Adele is a Software Engineer and Consultant at Trifork Amsterdam where she is working on systems for the educational sector. Most of her work day is spent in the JVM/Spring and React ecosystems, although increasingly she plays a pivotal role as trust... Show more

Sally Dabbah

Sally Dabbah

Meet Sally! Sally serves as a Data Engineer with an expertise in Azure Cloud Analytics Services, with years of experience under her belt.
Since earning her M.Sc. degree in Software Engineering, Sally has become a significant voice in Azure Cloud Analytics Services, publishing over ten blogs on Microsoft's Tech Community blog. What excites Sally most about her work is the opportunity to build Proof of Concepts (POCs) that help Microsoft customers unlock their business potential – by doing so, she remains true to her ultimate mission: to empower innovation through Azure's boundless possibilities. Away from her professional endeavors, Sally finds joy in baking pastries, a hobby she shares with her followers on Instagram for inspiration.

Meet Sally! Sally serves as a Data Engineer with an expertise in Azure Cloud Analytics Services, with years of experience under her belt. Since earning her M.Sc. degree in Software Engineering, Sally has become a significant voice in Azure Cloud An... Show more

Katerina Chernevskaya

Katerina Chernevskaya

Katerina, an MVP, MCT, and renowned public speaker, focuses on Power Platform & AI. With twenty years of experience and key certifications in PROSCI, PMI, Power Platform Solution Architect, she leads in app development, AI, and adaptive work models. Active in the Microsoft community, Katerina mentors new tech talent and supports innovation. Katerina takes part in the #SharingIsCaring initiative, guiding community contributions to the Microsoft Sample Solution Gallery.

https://www.linkedin.com/in/katerinachernevskaya/

Katerina, an MVP, MCT, and renowned public speaker, focuses on Power Platform & AI. With twenty years of experience and key certifications in PROSCI, PMI, Power Platform Solution Architect, she leads in app development, AI, and adaptive work models. ... Show more

Mar Lizana

Mar Lizana

Creo firmemente en el poder de los datos para cambiar realidades y en la importancia de seguir explorando nuevas formas de maximizar su impacto. Si quieres conectar o saber más sobre mi trabajo, puedes visitar mi blog en Medium https://medium.com/@akanemar

I firmly believe in the power of data to transform realities and in the importance of continuously exploring new ways to maximize its impact. If you'd like to connect or learn more about my work, feel free to visit my blog on Medium: https://medium.com/@akanemar

Creo firmemente en el poder de los datos para cambiar realidades y en la importancia de seguir explorando nuevas formas de maximizar su impacto. Si quieres conectar o saber más sobre mi trabajo, puedes visitar mi blog en Medium https://medium.com/@ak... Show more

Danny Kruge

Danny Kruge

Danny Kruge is a Microsoft Data Plaform MVP with a robust background in SQL Server and over a decade of experience in the field. Originally from Leicester, England, and now residing in the Netherlands, he has dedicated years to honing his skills and expanding his expertise into areas like Azure and Windows Engineering. Danny is particularly passionate about Azure Data Factory, where he leverages his deep knowledge to design efficient data workflows. As an active community leader, he organizes the Azure Heroes Netherlands Community Day and the Azure user group NL, helping to foster knowledge-sharing and collaboration among tech enthusiasts. Committed to continuous learning and community support, Danny enjoys sharing his insights to help others navigate data challenges and avoid common mistakes.

Danny Kruge is a Microsoft Data Plaform MVP with a robust background in SQL Server and over a decade of experience in the field. Originally from Leicester, England, and now residing in the Netherlands, he has dedicated years to honing his skills and ... Show more

Ronni Pedersen

Ronni Pedersen

Ronni is working as a Cloud Architect in Denmark. He has been working as a consultant since 1997 with a primary focus on Enterprise Client Management solutions, based on technologies like Microsoft Intune, Microsoft Configuration Manager, Enterprise Mobility + Security (EMS), Microsoft 365, Windows 11 and Windows 365.
Ronni is also a Microsoft Certified Trainer and Microsoft MVP in Enterprise Mobility and an appreciated speaker at events like Microsoft Campus Days, Microsoft Management Summit (MMS), Microsoft Ignite, Microsoft Techdays, Nordic Infrastructure Conference, Techorama, Workplace Njina Summit and at local User Group events.

Ronni is working as a Cloud Architect in Denmark. He has been working as a consultant since 1997 with a primary focus on Enterprise Client Management solutions, based on technologies like Microsoft Intune, Microsoft Configuration Manager, Enterprise ... Show more

Hossein Salahi

Hossein Salahi

Hossein is a Cloud Tech Lead with nearly a decade of experience architecting distributed systems and scalable infrastructure. From engineering enterprise-grade, on-premises Kubernetes platforms to leading complex DevOps transformations, he specializes in building resilient systems. Beyond driving technical strategy, Hossein actively mentors platform engineering teams and shares his expertise through industry talks and workshops.

Hossein is a Cloud Tech Lead with nearly a decade of experience architecting distributed systems and scalable infrastructure. From engineering enterprise-grade, on-premises Kubernetes platforms to leading complex DevOps transformations, he specialize... Show more

Taiob Ali

Taiob Ali

Taiob Ali is a Microsoft Data Platform MVP with 20+ years of experience with SQL Server and Azure data services. While SQL Server remains his primary focus, he is currently learning, using, and teaching PostgreSQL, often describing himself as an accidental PostgreSQL DBA.
He is also exploring practical applications of AI in data platforms, including GitHub Copilot, Copilot agent development, and built‑in AI capabilities in SQL Server. Taiob is a frequent international speaker and an active community organizer.

Taiob Ali is a Microsoft Data Platform MVP with 20+ years of experience with SQL Server and Azure data services. While SQL Server remains his primary focus, he is currently learning, using, and teaching PostgreSQL, often describing himself as an acci... Show more

Niels Tanis

Niels Tanis

Niels Tanis has got a background in .NET development, pentesting and security consultancy. He is Microsoft MVP and has been involved in breaking, defending and building secure applications.
Right now he is a software security engineer at Tidalis and before that he was a security researcher at Veracode where he focussed on static analysis of a variant of languages.
He is married, father of two and lives in a small village just outside Amersfoort, The Netherlands.

Niels Tanis has got a background in .NET development, pentesting and security consultancy. He is Microsoft MVP and has been involved in breaking, defending and building secure applications. Right now he is a software security engineer at Tidalis an... Show more

Hasan Savran

Hasan Savran

Hasan is a recognized Microsoft Data Platform MVP and an expert in Azure data products, bringing over 20 years of experience in software development, architecture, and management. As the owner of SavranWeb Consulting and the Senior Business Intelligence Manager at Progressive Insurance, he specializes in designing innovative business solutions leveraging the latest web and database technologies. A passionate global conference speaker, Hasan enjoys sharing his insights through blogging about Azure Data services, C#, and front-end development.

Hasan is a recognized Microsoft Data Platform MVP and an expert in Azure data products, bringing over 20 years of experience in software development, architecture, and management. As the owner of SavranWeb Consulting and the Senior Business Intellige... Show more

Lukas Durovsky

Lukas Durovsky

Staff Software Engineer with 10+ years of experience, currently working at Thermo Fisher Scientific. Interested in Domain-Driven Design and System Architectures. Passionate about leveraging AI to drive innovative solutions. Actively involved in the software engineering community, conducting workshops, talks, and lectures on topics such as GitHub Copilot and other topics from software engineering area.

Staff Software Engineer with 10+ years of experience, currently working at Thermo Fisher Scientific. Interested in Domain-Driven Design and System Architectures. Passionate about leveraging AI to drive innovative solutions. Actively involved in the s... Show more

Pamela Paterson

Pamela Paterson

Pamela Paterson, MS, CBAP, PMP, is a speaker, best-selling author, and senior tech consultant specializing in business systems analysis and project management. With a strong background in systems engineering and experience working with over 100 organizations, Pamela has delivered workshops, webinars, and presentations worldwide and authored 10 books, including two international best-sellers. Pamela has also taught project management for over ten years in Toronto, Canada. In 2023, 2024, and 2025 she stands out as one of the most active speakers on Sessionize. For more details, visit her LinkedIn profile https://www.linkedin.com/in/pamelapaterson/, or contact her at pamelatheba@gmail.com.

Pamela Paterson, MS, CBAP, PMP, is a speaker, best-selling author, and senior tech consultant specializing in business systems analysis and project management. With a strong background in systems engineering and experience working with over 100 organ... Show more

Surbhi Pokharna

Surbhi Pokharna

Surbhi Pokharna is a seasoned data professional with over two decades of experience in data architecture, database administration, and large-scale enterprise data solutions in the financial domain. She specializes in operationalizing data platforms in client-facing roles, delivering robust relational and advanced analytics solutions for both transactional systems and data warehouses.
Currently, Surbhi leads enterprise-scale cloud data migrations across SQL Server, Snowflake, Azure SQL, and Managed Instance, while actively designing next-generation data analytics platforms leveraging Snowflake.
She is a board member of the New England SQL Server User Group, part of the Snowflake Data Superhero 2026 program, and an active member of PASS. Surbhi is also a frequent speaker at industry conferences and community events, including PASS Summit, Snowflake User Groups, Azure Data User Groups, Data Saturdays, and SQLBits.

Surbhi Pokharna is a seasoned data professional with over two decades of experience in data architecture, database administration, and large-scale enterprise data solutions in the financial domain. She specializes in operationalizing data platforms i... Show more

Mitul Tailor

Mitul Tailor

I am a Microsoft Certified Trainer (MCT) and Senior Data & AI Engineer at Long View Systems, specializing in Azure services, data engineering, and AI-driven solutions. I work extensively with Azure Data Factory, Microsoft Fabric, Copilot Studio, and enterprise data migration, delivering scalable and efficient production-grade data platforms.

I hold a Post Graduate Certificate in Generative AI, a PG Diploma in ML & AI, and a Bachelor’s degree in Computer Science. I am DP-600 and AI-102 certified, with strong expertise in Microsoft Azure data and AI solutions. I also have hands-on experience with Retrieval-Augmented Generation (RAG) and Azure AI Foundry, applying these technologies to build intelligent automation and insight-driven systems.

Recognized by clients for clear, precise solution delivery and technical communication, I am passionate about automation, AI, and robotics. Outside of work, I enjoy traveling and have a strong interest in cars.

I am a Microsoft Certified Trainer (MCT) and Senior Data & AI Engineer at Long View Systems, specializing in Azure services, data engineering, and AI-driven solutions. I work extensively with Azure Data Factory, Microsoft Fabric, Copilot Studio, and ... Show more

Alberto Acerbis

Alberto Acerbis

Alberto Acerbis is a hands-on software architect with a strong background in distributed systems. Recognized as a Microsoft MVP in .NET technologies, he actively contributes to the tech community.
In his role, Alberto helps customers transform their ideas into robust and scalable solutions. Beyond his professional work, he is a passionate technical speaker, having delivered numerous sessions at conferences over the years.
His dedication to knowledge-sharing extends to the communities he has founded and actively participates in, fostering collaboration and continuous learning in the tech ecosystem.
He is the co-author of Domain-Driven Refactoring (Packt), Cronache di Domain-Driven Design (Avanscoperta), and author of Architetture evolutive, DDD, microservizi (Mokabyte).
Outside of technology, Alberto enjoys mountain activities in all seasons and has a keen interest in philosophy and other disciplines beyond the tech world.

Alberto Acerbis is a hands-on software architect with a strong background in distributed systems. Recognized as a Microsoft MVP in .NET technologies, he actively contributes to the tech community. In his role, Alberto helps customers transform their... Show more

David Patrick

David Patrick

For more than three decades, Dave has been building database‑driven applications, teaching developers, and energizing technical communities. A Microsoft Certified Trainer since 2001 and an eight‑time Microsoft MVP, he’s known for making complex topics click.

Dave runs three active user groups—MAD SharePoint, MACEME, and the Baltimore Cloud Meetup—where he brings people together across the SharePoint, cybersecurity, and cloud ecosystems.

At DSA, Inc., Dave supports U.S. Army missions at Aberdeen Proving Ground through SharePoint training and custom application development. His certification wall includes MCSD App Builder, MCSE for SharePoint, and MCSA SQL Server.

When he’s not building solutions, he’s teaching the next generation of technologists at UMD’s iSchool, Towson University, and Stevenson University.

He also co‑hosts PatrickPerspective.com, where he and his daughter Sarah share their sometimes‑aligned, sometimes‑hilariously‑different takes on technology.

For more than three decades, Dave has been building database‑driven applications, teaching developers, and energizing technical communities. A Microsoft Certified Trainer since 2001 and an eight‑time Microsoft MVP, he’s known for making complex topic... Show more

Jean Joseph

Jean Joseph

Jean Joseph is a seasoned consultant and senior technical trainer specializing in data engineering and artificial intelligence. With a strong background in database design, administration, and cutting-edge data technologies including machine learning and generative AI.

He helps organizations build secure, scalable solutions across both legacy systems and modern cloud platforms. Formerly recognized as a Microsoft MVP and senior technical trainer at Microsoft, Jean brings deep technical insight and a passion for teaching.

He’s also a dynamic speaker, mentor, and the founder of the Cloud Data Driven User Group and the Future Data Driven Summit, where he champions innovation and promotes responsible use of emerging tech within the data community.

Jean Joseph is a seasoned consultant and senior technical trainer specializing in data engineering and artificial intelligence. With a strong background in database design, administration, and cutting-edge data technologies including machine learning... Show more

Roland Guijt

Roland Guijt

Roland is a Microsoft MVP, MCT and Pluralsight author enjoying a constant curiosity around new techniques in software development. His focus is on all things .NET and browser technologies with a special focus on security.
As a long-time trainer and speaker, he led many courses on these topics and spoke about these topics at many international conferences. He's currently working with Duende software to help building out their products.

Roland is a Microsoft MVP, MCT and Pluralsight author enjoying a constant curiosity around new techniques in software development. His focus is on all things .NET and browser technologies with a special focus on security. As a long-time trainer and... Show more

Simon Painter

Simon Painter

I've been working as a .NET developer for over 16 years now in a variety of industries including government, retail and manufacturing. But I've been hacking around with computer code since I was old enough to read my Dad's copy of the ZX Spectrum BASIC coders manual.

I've been speaking about Functional C# at various user groups and conferences around the UK, USA, Europe and Australia and am particularly interested in seeing just how far we can push C# without breaking it.

In 2023 I released my first technical book: "Functional Programming with C#", published by O'Reilly Media.

When I'm not coding, or running after my two small children, I have been known to enjoy the classic series of Doctor Who, Fighting Fantasy Gamebooks, Cryptic Crosswords, and rather more coffee than is probably good for me.

I've been working as a .NET developer for over 16 years now in a variety of industries including government, retail and manufacturing. But I've been hacking around with computer code since I was old enough to read my Dad's copy of the ZX Spectrum BAS... 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.