Most Active Speakers 2025

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

  • 1119 speakers
  • Auto-generated
Marijn Somers

Marijn Somers

Marijn Somers is a distinguished Microsoft 365 consultant with a rich experience spanning over 19 years, dedicated to enhancing organizational efficiency and effectiveness through the strategic implementation and optimization of Microsoft 365 tools and workflows. As a revered Productivity Coach at Mijn 365 Coach, Marijn offers bespoke video training and coaching tailored to the unique needs of self-employed individuals and small businesses, empowering them to harness the capabilities of Microsoft 365 fully.

As a Microsoft MVP for Office Apps and Services for over 5 years, Marijn's accolade is a testament to his profound passion and expertise in the Microsoft 365 realm. A sought-after speaker at international forums, Marijn imparts valuable insights and best practices on governance, training, coaching, and user adoption.

As the co-host of the "Office 365 Distilled" podcast, Marijn engages a global audience with the latest Microsoft 365 trends and tips.
Marijn's unwavering commitment lies in steering organizations toward their business aspirations by maximizing their Microsoft 365 potential.

Marijn Somers is a distinguished Microsoft 365 consultant with a rich experience spanning over 19 years, dedicated to enhancing organizational efficiency and effectiveness through the strategic implementation and optimization of Microsoft 365 tools a... Show more

Raphael Koellner

Raphael Koellner

RAPHAEL KÖLLNER
Compliance Manager

Raphael Koellner combining the law and the information technology in particular the cloud computing. He worked for universities, Microsoft Germany (DX) and Microsoft Partner as consultant.

As CEO for KöllnService GmbH he works for huge international companies to migrate and implementate cloud solutions on a technical and a contract/law way.

Since 2019 Raphael Köllner is Microsoft Regional Director. He is the community guy, MVP for Office Server & Services, Windows 10 Insider MVP, MCT, Microsoft Student Partner Evangelist and become an attorney in Europe. He is the lead of the Office 365 Usergroup Germany, the Office 365 DACH, Leader of the Office 365 conference Germany, the SharePoint Saturday Cologne and one of 30 Windows 10 Top Insiders. Moreover he is member of the TEAMS Elite Team and the organizer of the TeamsCommunityDay. In this connection he leads the biggest Windows 10 Insider Community in Germany.

MVP: https://mvp.microsoft.com/en-us/mvp/Raphael%20%20Koellner-5000185

Microsoft Regional Director: https://rd.microsoft.com/en-us/raphael-koellner

RAPHAEL KÖLLNER Compliance Manager Raphael Koellner combining the law and the information technology in particular the cloud computing. He worked for universities, Microsoft Germany (DX) and Microsoft Partner as consultant. As CEO for KöllnSe... Show more

Christian Buckley

Christian Buckley

Christian is an award-winning product marketer and technology evangelist, and both a Microsoft Regional Director (RD) and Most Valuable Professional (MVP). Christian's 30-year tech career has included Chief Marketing Officer and Chief Evangelist for several leading SharePoint ISVs, and he was part of the Microsoft team that launched the hosted SharePoint platform in Office 365. He has worked with some of the world’s largest technology companies to build and deploy social, collaboration, and supply chain solutions, and sold his first software startup to Rational Software in 2001. Co-author of books on both SharePoint and software configuration management (SCM), Christian is one of the most widely published names within the Microsoft ecosystem, and can be found online at www.buckleyplanet.com and @buckleyplanet

Christian is an award-winning product marketer and technology evangelist, and both a Microsoft Regional Director (RD) and Most Valuable Professional (MVP). Christian's 30-year tech career has included Chief Marketing Officer and Chief Evangelist for ... Show more

Ryan Schouten

Ryan Schouten

With a passion for technology that is matched only by his commitment to community engagement, Ryan Schouten stands out as a Microsoft Most Valuable Professional (MVP). Hailing from the vibrant tech scene of California, Ryan has carved a niche for himself as a thought leader and advocate for Microsoft Products & Services.

Ryan’s journey in the tech industry is marked by his eagerness to share knowledge and foster learning. His expertise spans across various Microsoft technologies, where he has contributed significantly through public speaking, content creation, and mentorship. His ability to demystify complex technical concepts and present them in an accessible manner has made him a beloved figure in the tech community.

At the core of Ryan’s philosophy is the belief that technology can be a force for good, driving innovation and solving real-world problems. He actively participates in community events where he shares insights and collaborates with other experts.

With a passion for technology that is matched only by his commitment to community engagement, Ryan Schouten stands out as a Microsoft Most Valuable Professional (MVP). Hailing from the vibrant tech scene of California, Ryan has carved a niche for him... 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

Dylan Beattie

Dylan Beattie

Dylan Beattie is an independent consultant who has been building data-driven web applications since the 1990s. He’s managed teams, taught workshops, and worked on everything from tiny standalone websites to complex distributed systems. He’s a Microsoft MVP, and he regularly speaks at conferences and user groups all over the world.

Dylan is the creator of the Rockstar programming language, and the founder, vocalist and lead guitarist with The Linebreakers, the world's greatest nerd comedy classic rock disco alt punk covers band.

Dylan Beattie is an independent consultant who has been building data-driven web applications since the 1990s. He’s managed teams, taught workshops, and worked on everything from tiny standalone websites to complex distributed systems. He’s a Microso... Show more

Gerardo Lopez Falcon

Gerardo Lopez Falcon

Gerardo is a big fan of DevOps and cloud technologies. He loves to code interesting backend stuff in languages like NodeJs, Java, etc..... He participates as speaker and mentor in different software communities in Costa Rica. He is the first Google Developer Expert in Cloud and Docker captain of America Central.

Gerardo is a big fan of DevOps and cloud technologies. He loves to code interesting backend stuff in languages like NodeJs, Java, etc..... He participates as speaker and mentor in different software communities in Costa Rica. He is the first Google D... Show more

Chen Shiri

Chen Shiri

Chen Shiri is a cyber security researcher, hacker, known for his research on low-level security and containers isolation. His research has revealed significant flaws within widely-used services and prominent vendors. In addition to its research on Accenture, he published research with early examples of weaknesses in microservices and container-based web apps.

Chen Shiri is a cyber security researcher, hacker, known for his research on low-level security and containers isolation. His research has revealed significant flaws within widely-used services and prominent vendors. In addition to its research on ... Show more

Vadzim Prudnikau

Vadzim Prudnikau

Hands-on Architect, IT Trainer, and Conference Speaker with 20+ years of experience, passionate about building high-quality software, mentoring developers, and sharing knowledge.

I've trained over 550 professionals in Architecture, EventStorming, and TDD, built and deployed more than 10 production-ready projects, led multiple development teams, and created a successful Java department from scratch. Along the way, I’ve mentored 20+ developers and conducted 100+ technical interviews.

My expertise lies in Java, but I also have experience with Kotlin, Groovy, and other programming languages. I believe that strong technical skills, continuous learning, teamwork, and knowledge-sharing are the keys to success in software development.

Hands-on Architect, IT Trainer, and Conference Speaker with 20+ years of experience, passionate about building high-quality software, mentoring developers, and sharing knowledge. I've trained over 550 professionals in Architecture, EventStorming, ... Show more

Kevin Gosse

Kevin Gosse

Kevin Gosse has been using Microsoft .NET technologies for 20 years, across client, server, and mobile applications. He is Microsoft MVP and is currently employed at JetBrains, where he works on improving the performance of ReSharper.

Kevin Gosse has been using Microsoft .NET technologies for 20 years, across client, server, and mobile applications. He is Microsoft MVP and is currently employed at JetBrains, where he works on improving the performance of ReSharper. Show more

Bülent Altinsoy

Bülent Altinsoy

Bülent works at Avanade since over a decade and as Senior Expert in Power Platform and Copilot Studio in Germany.

His passion is to share his knowledge and learnings around Power Platform & Dynamics 365. Bülent is a Microsoft MVP since 2025 and an MCT since 2021.

Bülent works at Avanade since over a decade and as Senior Expert in Power Platform and Copilot Studio in Germany. His passion is to share his knowledge and learnings around Power Platform & Dynamics 365. Bülent is a Microsoft MVP since 2025 and a... 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

Geoff Ables

Geoff Ables

Geoff Ables is a keynote speaker, best-selling author, and a Microsoft MVP recognized in the Copilot, Power Platform, Dynamics 365, and Modern Work (SharePoint, Teams and Viva) categories.

A recognized thought leader on artificial intelligence and people-centric digital transformation, Geoff's most recent book, "The LUCK Principle: Business Results at the Intersection of People and Profit," delivers fresh insight and inspiration into the people, processes, and technologies driving business ROI today.

His firm, C5 Insight, has twice been named an Inc 5000 company, and advises clients on digital customer and employee experience projects.

Geoff is also an avid motorcycle and wine enthusiast and has appeared as a guest on TruTVs's, "The Impractical Jokers."

Geoff Ables is a keynote speaker, best-selling author, and a Microsoft MVP recognized in the Copilot, Power Platform, Dynamics 365, and Modern Work (SharePoint, Teams and Viva) categories. A recognized thought leader on artificial intelligence an... 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

Miley Fu

Miley Fu

Miley is a Developer Advocate committed to build and contribute to open source. She is the co-chair and keynote speaker for KubeCon+Open Source Summit and AI Dev China 2024. She works on WasmEdge runtime under Linux Foundation as the founding member for over 6 years. She talks at KubeCon, KCD Beijing+Shenzhen, CloudDay Italy, DevRelCon, Open Source Summit Japan, AWS User Group, Global AI Note, KubeDay Singapore etc. Miley writes tech content and organizes dev events, including KCDs, MCP and AI Agent Meetups, GOSIM AI PARIS, Wasm track at FOSDEM, in EU, the US, Asia, and more. She is also the lead organizer for GOSIM the open source AI conference.

Miley is a Developer Advocate committed to build and contribute to open source. She is the co-chair and keynote speaker for KubeCon+Open Source Summit and AI Dev China 2024. She works on WasmEdge runtime under Linux Foundation as the founding member ... Show more

Chris Klug

Chris Klug

Chris Klug is a developer badass-as-a-service that either creates or solves problems depending on who you ask. He loves creating and building things. Whether it be a new application, a new kitchen or a new RC helicopter, you will see him building things all the time. Most of the time, that means writing code and solving problems for clients at a company called Active Solution in Stockholm though. Except for the many days he spends at conferences and usergroups, talking about doing things he is passionate about, and for the days he goes mountain biking, IPSC shooting, kiteboarding or RC helicopter flying.
For the last 15-something years, he has been solving problems for customers, and loving it. But if he gets to choose, he'll go to the beach and kitesurf every day!

Chris Klug is a developer badass-as-a-service that either creates or solves problems depending on who you ask. He loves creating and building things. Whether it be a new application, a new kitchen or a new RC helicopter, you will see him building thi... Show more

Grant Fritchey

Grant Fritchey

Grant Fritchey is a Data Platform MVP and AWS Community Builder with over 30 years’ experience in IT, including time spent in support and development. Grant works with multiple data platforms including SQL Server and PostgreSQL as well as multiple cloud platforms. He has also developed in VB, VB.NET, C#, and Java. Grant writes books for Apress and Simple-Talk. Grant presents at conferences and user groups, large and small, all over the world. He joined Redgate Software as a product advocate in January 2011.

Grant Fritchey is a Data Platform MVP and AWS Community Builder with over 30 years’ experience in IT, including time spent in support and development. Grant works with multiple data platforms including SQL Server and PostgreSQL as well as multiple cl... Show more

Kanwal Khipple

Kanwal Khipple

Kanwal Khipple is the CEO and Founder of 2toLead, a trailblazing consulting firm dedicated to innovative digital workplace transformations. Over the past decade, he has established himself as a trusted authority in creating engaging, award-winning employee experiences that seamlessly blend design, technology, and human-centric thinking. Recognized by the Nielsen Norman Group for designing two Top 10 Intranets, Kanwal continues to influence how modern organizations enhance collaboration, learning, and performance.

As AI reshapes how employees interact with information and one another, Kanwal focuses on leveraging cutting-edge tools—like personalization engines, intelligent chatbots, and workplace analytics—to drive meaningful, future-ready workplaces. A long-standing Microsoft 365 community contributor and Microsoft and Business Applications MVP since 2009, he frequently speaks on the value of embracing emerging technologies to amplify rather than replace human connection. His mission is to ensure that as we evolve our workplaces with AI, we do so ethically, responsibly, and with enduring human value at the core.

Kanwal Khipple is the CEO and Founder of 2toLead, a trailblazing consulting firm dedicated to innovative digital workplace transformations. Over the past decade, he has established himself as a trusted authority in creating engaging, award-winning em... Show more

Rik Hepworth

Rik Hepworth

Rik helps organisations use Cloud better as CEO and co-founder of Zure UK. Whether that is a new adoption where governance and management are key, or an application modernisation project where technology choice and team knowledge are important factors in success.
Through his public speaking and community involvement, Rik is a recipient of the Microsoft MVP Programme award for his work with Azure. He is also proud to be a member of the Microsoft Regional Director Programme. As an event organiser, speaker and lapsed blogger, Rik is keen to share his knowledge with the community, and encourage and support others as they do the same.
His grey hair is an indication of how long he has worked in IT, and in that time he's done most things you'd expect of an IT Pro: From crawling under floors pulling cables, to managing large scale automated OS rollouts, to architecting solutions for on-premises and cloud. Now he spends more time working with his customers' management, sharing that breadth of experience and learning.

Rik helps organisations use Cloud better as CEO and co-founder of Zure UK. Whether that is a new adoption where governance and management are key, or an application modernisation project where technology choice and team knowledge are important factor... Show more

Oskari Heikkinen

Oskari Heikkinen

Oskari has over a decade of experience in using Azure for data analytics at scale. He has been designing and implementing numerous projects for some of the largest companies in the Nordics. As a Microsoft Certified Trainer (MCT), Oskari conducts classes for subject-matter experts and consultants and provides external customer training sessions. He is also an active speaker at community events. Oskari has been honored with the Microsoft Most Valuable Professional (MVP) award in the Data Platform category six times. Additionally, he is certified as an Azure Solutions Architect, Fabric Analytics Engineer, and Azure Data Engineer.

Oskari has over a decade of experience in using Azure for data analytics at scale. He has been designing and implementing numerous projects for some of the largest companies in the Nordics. As a Microsoft Certified Trainer (MCT), Oskari conducts clas... Show more

Ram Iyengar

Ram Iyengar

Ram Iyengar is an engineer by practice and an educator at heart. He was (cf) pushed into technology evangelism along his journey as a developer and hasn’t looked back since! He enjoys helping engineering teams around the world discover new and creative ways to work. He is a proponent of community-first product development.

Ram Iyengar is an engineer by practice and an educator at heart. He was (cf) pushed into technology evangelism along his journey as a developer and hasn’t looked back since! He enjoys helping engineering teams around the world discover new and creati... Show more

Mohamed Derhalli

Mohamed Derhalli

Mohamed has been working with Microsoft technologies for 16 years & has been an MVP since 2015. He has a passion for SharePoint, Copilot, Teams & Power Platform!
Mohamed obtained his Master's degree in Software Engineering from the university of Hertfordshire with the Golden Herts Award.

🍁 Organizer of the Canadian Cloud Summit with other awesome MVPS🍁

Mohamed has been working with Microsoft technologies for 16 years & has been an MVP since 2015. He has a passion for SharePoint, Copilot, Teams & Power Platform! Mohamed obtained his Master's degree in Software Engineering from the university of Her... Show more

Michael McKinley

Michael McKinley

Michael McKinley is the founder of McKinley Consulting. Michael has managed projects and workstreams in consulting for the last thirteen years, in areas including data analytics, change management, operations excellence, and supply chain transformation.

Michael McKinley is the founder of McKinley Consulting. Michael has managed projects and workstreams in consulting for the last thirteen years, in areas including data analytics, change management, operations excellence, and supply chain transformati... Show more

Christian Woerz

Christian Woerz

Christian is a freelance fullstack developer and Microsoft MVP writing code in languages like Java, Kotlin, Typescript and Javascript. He's been working as a software engineer since over a decade. He loves learning from others and sharing his knowledge.

Christian is a freelance fullstack developer and Microsoft MVP writing code in languages like Java, Kotlin, Typescript and Javascript. He's been working as a software engineer since over a decade. He loves learning from others and sharing his knowled... Show more

Ardalis .

Ardalis .

Ardalis (Steve Smith) is an entrepreneur and software developer with a passion for building quality software as effectively as possible. Ardalis has published DOZENS of courses on Pluralsight and Dometrain, covering DDD, SOLID, design patterns, and software architecture. He's a Microsoft ASP.NET MVP, a frequent speaker at developer conferences, an author, and a trainer.

Ardalis works with companies through his company, NimblePros. They help teams who want to avoid the trap of technical debt to deliver better software, faster. Ardalis and his team have been described by clients as a "force multiplier", amplifying the value of existing development teams.

Follow ardalis on BlueSky, YouTube, and ardalis.com.

Ardalis (Steve Smith) is an entrepreneur and software developer with a passion for building quality software as effectively as possible. Ardalis has published DOZENS of courses on Pluralsight and Dometrain, covering DDD, SOLID, design patterns, and s... Show more

Spencer Schneidenbach

Spencer Schneidenbach

Spencer Schneidenbach is an AI Architect and CTO of Aviron Labs, an AI and software development firm based in the United States. He has been recognized as a Microsoft MVP for his AI expertise and contributions to the community. Visit our website at https://avironlabs.com for more information.

Spencer Schneidenbach is an AI Architect and CTO of Aviron Labs, an AI and software development firm based in the United States. He has been recognized as a Microsoft MVP for his AI expertise and contributions to the community. Visit our website at h... 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

Jeremy Meiss

Jeremy Meiss

Jeremy is an international speaker and is currently the Director of DevRel at OneStream Software, previously at CircleCI, Solace, Auth0, and XDA. With almost 30 years in Tech, covering just about every functional area, including support, system and database administration, application and web development, project management, program management, and systems analysis, Jeremy is active in the DevRel and DevOps communities, a co-creator of DevOpsPartyGames.com, and organizer for DevOpsDays Kansas City. A lover of all things coffee, community, open source, and tech, he’s also house-broken, and (generally) plays well with others.

Jeremy is an international speaker and is currently the Director of DevRel at OneStream Software, previously at CircleCI, Solace, Auth0, and XDA. With almost 30 years in Tech, covering just about every functional area, including support, system and d... Show more

Lorenzo De Francesco

Lorenzo De Francesco

I am the CTO of Azimut Marketplace with over 10 years of experience in IT development. In the last year alone, I have successfully reduced IT costs by 80%, enhancing the operational efficiency of the platform. My primary commitment is to create IT solutions that not only drive profits but are also robust, durable, and flexible enough to meet the ever-evolving needs of our modern society. I am driven by a passion for innovation and technology, and I consistently strive to promote excellence in the management and development of technological systems.

I am the CTO of Azimut Marketplace with over 10 years of experience in IT development. In the last year alone, I have successfully reduced IT costs by 80%, enhancing the operational efficiency of the platform. My primary commitment is to create IT so... Show more

Sharon Weaver

Sharon Weaver

Sharon is the founder and CEO of Smarter Consulting, a business and technology consulting company. She founded her business to grow and diversify the technology resource pool. She has created a business based on diversity, inclusion, and opportunity.

As a Microsoft RD, MVP, MCT, and Productivity Expert, Sharon's background in Software Development, Business and Systems Analysis, Project Management, and Agile combined with her Developmental Psychology degree and Six Sigma Black Belt blend perfectly with her love of helping and training people to make her a well-rounded leader, consultant, and coach.

Solving both process and technical problems, Sharon has the unique ability to listen and uncover client pain points to develop a plan that will not only build the needed solutions but also drive change, adoption, and education in a way not typically seen from technical consultants.

Being part of the community is extremely important and she is an active leader, participant, and mentor. Sharon speaks professionally globally on subjects such as Microsoft 365, Business Analysis, Leadership, Teamwork, and Women in Technology. She is the founder and lead organizer of the Kansas City M365 User Group, CollabCon, and the Founding President of the Kansas City IIBA chapter.

When she's not working, Sharon watches tv and movies, reads, hangs out with her family, or is traveling somewhere interesting, most likely on a cruise ship out of the country with limited access to communication.

Sharon is the founder and CEO of Smarter Consulting, a business and technology consulting company. She founded her business to grow and diversify the technology resource pool. She has created a business based on diversity, inclusion, and opportunity.... 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.