Most Active Speakers 2025

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

  • 1123 speakers
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Adrian Ritter

Adrian Ritter

Modern Collaboration @glueckkanja

Adrian works as Cloud Architect Modern Collaboration at glueckkanja AG. For more than 17 years, he has focused on designing and implementing collaboration platforms based on Microsoft technologies.

His roots lie in working as a SharePoint consultant. In many projects he was able to gather expert knowledge around business requirements for collaboration and processes as well as user adoption.

Modern Collaboration @glueckkanja Adrian works as Cloud Architect Modern Collaboration at glueckkanja AG. For more than 17 years, he has focused on designing and implementing collaboration platforms based on Microsoft technologies. His roots li... Show more

Cecilia Wirén

Cecilia Wirén

Cecilia Wirén senior developer at Active Solution with over two decades of experience in the world of Microsoft development. Her accomplishments have been recognized multiple times with the Microsoft MVP award. Cecilia is often invited to share her insights at conferences and user group meetings.

During Cecilia's journey she has specialized in several areas, including Security and DevOps. Now, the field of artificial intelligence has become her new favorite topic.

Cecilia Wirén senior developer at Active Solution with over two decades of experience in the world of Microsoft development. Her accomplishments have been recognized multiple times with the Microsoft MVP award. Cecilia is often invited to share her i... Show more

Patricia Rodríguez Vaquero

Patricia Rodríguez Vaquero

🚀 Welcome to my profile!

I'm Patricia Rodríguez Vaquero 😊, a certified Azure Data Engineer 💻☁️. With 5 years of experience in Microsoft Azure services (Microsoft Fabric, Azure Synapse Analytics, ADF, Azure Databricks, Python, T-SQL, Spark, etc), I bring passion, dedication, and a drive to master Microsoft technologies.

Beyond work, I consider myself honest, perseverant, curious, and a committed lifelong learner💡.
I’m an animal and nature lover 🐾🌿, an avid traveler ✈️, and an active participant in community events 🤝.

💬 Hablo español
💬 I speak English
💬 Parlo italiano

✨ ATTITUDE IS THE KEY TO SUCCESS! ✨

📩 Want to connect? Reach me at: pati.rvaquero@gmail.com

🚀 Welcome to my profile! I'm Patricia Rodríguez Vaquero 😊, a certified Azure Data Engineer 💻☁️. With 5 years of experience in Microsoft Azure services (Microsoft Fabric, Azure Synapse Analytics, ADF, Azure Databricks, Python, T-SQL, Spark, etc... Show more

YK Sugi

YK Sugi

Developer Experience Manager at Eventual. Also the creator of an open-source coding assistant with ~1200 stars on GitHub, and a Claude Code tips repo with 4000+ stars. Founder of CS Dojo, a programming education YouTube channel with 1.9M+ subscribers.

Developer Experience Manager at Eventual. Also the creator of an open-source coding assistant with ~1200 stars on GitHub, and a Claude Code tips repo with 4000+ stars. Founder of CS Dojo, a programming education YouTube channel with 1.9M+ subscribers... Show more

Kevin Leon

Kevin Leon

Kevin Leon is an embedded systems researcher specializing in low-level firmware development, hardware exploitation, and space systems security. His work focuses on identifying and analyzing practical attack surfaces in satellite subsystems, embedded radios, and constrained IoT devices.

He is the creator of PWNSAT, a research initiative centered on the design of intentionally vulnerable CubeSat architectures for hands-on cybersecurity experimentation, and the architect of FlatSat, an open educational platform for embedded hardware security research.

His research interests include firmware reverse engineering, hardware interface exploitation, side-channel analysis, radio protocol manipulation, and offensive security methodologies applied to aerospace systems. He has delivered technical trainings at international security conferences such as Ekoparty and actively contributes to advancing offensive research in aerospace and embedded systems security.

Kevin Leon is an embedded systems researcher specializing in low-level firmware development, hardware exploitation, and space systems security. His work focuses on identifying and analyzing practical attack surfaces in satellite subsystems, embedded ... Show more

Glenn F. Henriksen

Glenn F. Henriksen

Glenn F. Henriksen is a mentor and developer from Norway. As the co-founder and CTO of Justify, he gets to build new legal tools for everyone to use, helping to create better communication and less conflict in relationships. He's continuously exploring new tools, processes and technologies, and improving how he and his fellow developers work with code, tasks and projects. He has been a Microsoft Development MVP, a part of the Microsoft Regional Director program and is an ASP.NET Insider and an Azure Advisor. In the past 25+ years he has co-owned two companies, worked as a consultant, manager, support tech, network admin, developer, architect, technical lead and more, but his favourite things are still swapping code for food and building stuff that makes a difference in people’s lives.

Glenn F. Henriksen is a mentor and developer from Norway. As the co-founder and CTO of Justify, he gets to build new legal tools for everyone to use, helping to create better communication and less conflict in relationships. He's continuously explori... Show more

Oktay Sari

Oktay Sari

“My name is Oktay Sari and I live in Hoofddorp, the Netherlands. I am happily married with 2 children and our dog Lucy. I like to read a good book, have a nice BBQ and enjoy a delicious craft beer with friends and family. The little things in life matter the most to me”

Oktay has been working as an IT specialist since 1997 and has fulfilled various roles over the years.. For the past 9+ years, he has honed his skills in Endpoint management, Microsoft Intune and all things Security. In 2022 he received the Microsoft Most Valuable Professional (MVP) award in the Security (Intune) category for his community contributions and thought leadership.

With the growing prevalence of macOS in corporate settings, his current focus is on leveraging Microsoft Intune's capabilities to ensure robust and efficient management of macOS devices.

“My name is Oktay Sari and I live in Hoofddorp, the Netherlands. I am happily married with 2 children and our dog Lucy. I like to read a good book, have a nice BBQ and enjoy a delicious craft beer with friends and family. The little things in life ma... Show more

Lonneke Opsteegh

Lonneke Opsteegh

Lonneke Opsteegh, PhD, is an expert in data communication, with a strong focus on dashboards and data visualizations. A solid data foundation and in-depth analyses are essential, but not sufficient to achieve real change in an organization. Using clear and direct visuals, Lonneke makes data understandable to everyone in the organization, including people without a "math knack"...

Lonneke designed Power BI dashboards, templates/style guides and a 'way of working' for TNO, Rabobank, ForFarmers, InRetail, Roompot, Kapimex, TIGRA and the University of Wageningen, among others. She also helped hundreds of trainees to design and build better graphs and dashboards, both in science, business and (semi-)government (e.g. Radboud University, GasUnie, various municipalities, ABN AMRO, Van Lanschot bankers, Pink Roccade).

Lonneke knows like no other how and why certain design elements work well or not so well in practice. She likes to take you along in the world of dashboard design and data visualization.

Lonneke Opsteegh, PhD, is an expert in data communication, with a strong focus on dashboards and data visualizations. A solid data foundation and in-depth analyses are essential, but not sufficient to achieve real change in an organization. Using cle... 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

Mark Pryce-Maher

Mark Pryce-Maher

Mark Pryce-Maher is a Senior Program Manager on Microsoft Fabric. Primary focusing on the Mirroring, User Experiences and Migrations for the Data Warehouse. Mark has spent the last 7 years at Microsoft in the Big Data space, including helping many customers migrate from Netezza, Teradata, Oracle, APS, SQL Server to Synapse Data Warehouse.

Mark Pryce-Maher is a Senior Program Manager on Microsoft Fabric. Primary focusing on the Mirroring, User Experiences and Migrations for the Data Warehouse. Mark has spent the last 7 years at Microsoft in the Big Data space, including helping many... Show more

Ryan Ververs-Bijkerk

Ryan Ververs-Bijkerk

Ryan is a self-employed Technologist at GO-INIT focused on the EUC and Code area. Ryan is primarily focusing on the user experience in centralized desktop environments. With his development skills, Ryan is capable of adapting quickly to customers’ needs by having an agile mindset. Ryan is a bit lazy, yes lazy but in a good way. Ryan is all about automation as he is not made for repeating tasks.

Community is very important for Ryan as he is an active blogger and has published multiple tools. Next, to his personal blogs and tools, Ryan is also a member of the Remote Display Analyzer team and TeamRGE. Ryan has been awarded the Microsoft Most Valuable Professional (MVP), Citrix Technology Professional (CTP), NVIDIA vGPU Community Advisor (NGCA), Parallels VIPP and VMware vExpert status.

If you ever meet Ryan you can always do him a pleasure buying a beer because he loves beer.

Ryan is a self-employed Technologist at GO-INIT focused on the EUC and Code area. Ryan is primarily focusing on the user experience in centralized desktop environments. With his development skills, Ryan is capable of adapting quickly to customers’ ne... 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

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

Rajendra Ongole

Rajendra Ongole

I am currently working as a BI Lead Specialist within the Engineering and Tech Lead Team at Bosch Digital. Holding more than 8 certifications from Microsoft, such as Microsoft Certified Fabric Analytics Engineer, Power BI Analyst, and Microsoft Certified Trainer. I’ve shared insights in Power Platforms forums through sessions, and I contribute through blogging. I worked on different projects, delivering insights to clients. My current skills include: Microsoft Fabric, Microsoft Power BI, SQL, Azure Databricks, Microsoft Excel, Python, and Spark My knowledge-sharing efforts extend across various platforms, including writing blogs, technical reviews of books, forum participation, and live sessions. I take pride in actively participating in and contributing to the Microsoft forums, where I consistently share valuable insights and knowledge.

I am currently working as a BI Lead Specialist within the Engineering and Tech Lead Team at Bosch Digital. Holding more than 8 certifications from Microsoft, such as Microsoft Certified Fabric Analytics Engineer, Power BI Analyst, and Microsoft Certi... Show more

Michael Coté

Michael Coté

Michael Coté studies how large organizations improve how they build software to run and grow their business. His books Changing Mindsets, Monolithic Transformation, and The Business Bottleneck cover these topics. He’s been an industry analyst at RedMonk and 451 Research, done corporate strategy and M&A, and was a programmer. He also co-hosts several podcasts, including Software Defined Talk. His daily-ish newsletter is at newsletter.cote.io.

Michael Coté studies how large organizations improve how they build software to run and grow their business. His books Changing Mindsets, Monolithic Transformation, and The Business Bottleneck cover these topics. He’s been an industry analyst at RedM... Show more

Olivier My

Olivier My

Coach Agile et Coach Professionnel, Olivier accompagne des individus, des équipes et des organisations ayant l’envie d’aller vers plus d’adaptabilité, de résilience et de pérennité humaine dans ce monde en perpétuel mouvement. Dans ce sens, il les aide à mobiliser les énergies vers un objectif porteur de sens, à mieux coopérer ensemble et à changer avec plaisir. Son approche se veut simple et légère, sans injonction et teintée de développement personnel.

Coach Agile et Coach Professionnel, Olivier accompagne des individus, des équipes et des organisations ayant l’envie d’aller vers plus d’adaptabilité, de résilience et de pérennité humaine dans ce monde en perpétuel mouvement. Dans ce sens, il les ai... Show more

Barkha Herman

Barkha Herman

Barkha Herman is a technologist, experienced developer advocate, and the founder of WiTVoices and South Florida Women in Tech. With a deep understanding of technology and a love for fostering inclusive and diverse tech communities, Barkha is dedicated to empowering individuals and organizations to thrive in the rapidly evolving digital landscape.

In addition to her work at WiTVoices, she takes great pride in leading South Florida Women in Tech. These organizations are committed to empowering women in technology and creating a supportive environment for their professional growth. Through mentorship programs, networking events, and educational initiatives, they strive to break barriers and foster inclusivity in the tech industry.

Barkha Herman is a technologist, experienced developer advocate, and the founder of WiTVoices and South Florida Women in Tech. With a deep understanding of technology and a love for fostering inclusive and diverse tech communities, Barkha is dedicate... Show more

Alberto Diaz Martin

Alberto Diaz Martin

A professional with more than 20years of experience in the IT Industry, all of them working with Microsoft Technologies. His principal activities are Development and Solution Analysts on his first years and as Team Leader and Solution Architect on the last 6 years. Currently Chief Technology Innovation Officer in ENCAMINA, leading Microsoft technology software development and member of the management board.

For the Spanish Community, he works as organizer and speaker in the most important Microsoft technologies conferences which he is one of the most important leaders. Author of several books and articles in professional magazine, from 2013 he began a new career as co-director of CompartiMOSS, a Microsoft technologies magazine.

In 2011 he was named Microsoft MVP and he still retaining recognition for the seventh consecutive year. He defined himself as a geek, smartphones lover and developer. For the community, has founded TenerifeDev (www.tenerifedev.com) with other friends, a technical community in Tenerife, coordinator at SUGES (SharePoint Users Group on Spain, www.suges.es) and at Comunidad Office 365 Spain.

A professional with more than 20years of experience in the IT Industry, all of them working with Microsoft Technologies. His principal activities are Development and Solution Analysts on his first years and as Team Leader and Solution Architect on th... Show more

Bob Walker

Bob Walker

Bob Walker is a Field CTO Octopus Deploy. Bob started as a developer in the early days of .NET when web forms were the hottest new thing, and manual deployments were the norm. After one too many five-hour 2 AM Saturday deployments, he searched for any automation to stop that pain. His original focus was on automating database deployments. Since then, his passion has expanded from writing code to creating full CI/CD pipelines and implementing DevOps practices.

Bob Walker is a Field CTO Octopus Deploy. Bob started as a developer in the early days of .NET when web forms were the hottest new thing, and manual deployments were the norm. After one too many five-hour 2 AM Saturday deployments, he searched for ... 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

Gianni Ceresa

Gianni Ceresa

A Data enthusiast more widely interested in Business Analytics/DW/EPM solutions with a special focus on Oracle products and solutions.
Oracle ACE Director, owner of DATAlysis LLC, a consulting company in Switzerland, he has more than 15 years of experience in multiple project roles like architect, analyst, team lead and developer, bridging together the business and the technical side of the BA world.
His other activities include training delivery, R&D, blogging and supporting the Oracle community on the forums and by presenting at multiple events.

A Data enthusiast more widely interested in Business Analytics/DW/EPM solutions with a special focus on Oracle products and solutions. Oracle ACE Director, owner of DATAlysis LLC, a consulting company in Switzerland, he has more than 15 years of ex... 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

Kristen B. Hubler

Kristen B. Hubler

Kristen holds an M.Ed, a mini-MBA in Lean Six Sigma, is a Prosci certified Change Management Specialist, and certified Scrum Master. As a change and adoption specialist she uses change management and learning best practices to help organizations achieve successful adoption of their software deployment. As a thought leader, she also has several years' experience in leadership development and providing professional development workshops. Her book, The Impossible Box, will help you change your own behaviors to develop the habits you need to achieve your biggest goals.

Kristen holds an M.Ed, a mini-MBA in Lean Six Sigma, is a Prosci certified Change Management Specialist, and certified Scrum Master. As a change and adoption specialist she uses change management and learning best practices to help organizations achi... Show more

Leonardo Micheloni

Leonardo Micheloni

Leonardo Micheloni has been a software developer for more than 20 years, and has been recognized as a Microsoft MVP for the last 10 years thanks to his collaboration with the development community in Latin America and Spain.
For several years he has been involved with good development and agility practices, and everything related to creating quality software.
He currently works for Tokiota in Madrid.

Leonardo Micheloni has been a software developer for more than 20 years, and has been recognized as a Microsoft MVP for the last 10 years thanks to his collaboration with the development community in Latin America and Spain. For several years he has... Show more

Cristian Angyal

Cristian Angyal

Cristian is a “Project Management Professional turned into a Data Guy” working as a link between two worlds: Business and IT.
Having worked for the last 20+ years with data in different roles he was fascinated when he discovered Power Query and Power Pivot back in 2014 and then, Power BI in 2015.

He’s holding several Microsoft Certifications (MS Fabric Analytics Engineer, Power BI Certified Data Analyst, Trainer (MCT), MCSE Data Management and Analytics, MCSA BI Reporting, MOS Master, Excel Expert, etc) and he loves getting insights from data and then, using these insight solving real business problems.

He is the founder of Romania Power BI and Modern Excel User Group (https://www.meetup.com/romaniapug/) and has been recognized as Microsoft Most Valuable Professional (MVP) in 2022.

Cristian is a “Project Management Professional turned into a Data Guy” working as a link between two worlds: Business and IT. Having worked for the last 20+ years with data in different roles he was fascinated when he discovered Power Query and Powe... Show more

Thomas Naunheim

Thomas Naunheim

Thomas Naunheim is a Cyber Security Architect at glueckkanja AG and a Microsoft MVP from Koblenz, Germany.
His principal focus is on identity and security solutions in Microsoft Azure and Microsoft Entra.
Thomas shares his experience and research with the community as a blogger at “cloud-architekt.net”,
and he is a speaker at conferences and co-author of the "Entra ID Attack & Defense Playbook”.
He is a member of the "Azure Meetup Bonn" and “Cloud Identity Summit” organization team and is also co-host of the podcast "Cloud Inspires".

Thomas Naunheim is a Cyber Security Architect at glueckkanja AG and a Microsoft MVP from Koblenz, Germany. His principal focus is on identity and security solutions in Microsoft Azure and Microsoft Entra. Thomas shares his experience and research w... Show more

Tasha Anspach

Tasha Anspach

Tasha Anspach is a distinguished consultant with a deep acumen in D365 Business Central & Power Platform. Drawing from her experience in Dynamics SL support, ISV assistance, and crafting solutions for multifaceted industry scenarios, Tasha guides businesses towards transformative success. She is not only a beacon of sales and technological expertise but also harbors a whimsical passion for unicorns, symbolizing her unique approach to business solutions. Tasha champions organizations to realize their fullest potential through technology.

Tasha Anspach is a distinguished consultant with a deep acumen in D365 Business Central & Power Platform. Drawing from her experience in Dynamics SL support, ISV assistance, and crafting solutions for multifaceted industry scenarios, Tasha guides bus... 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

Saurabh Mishra

Saurabh Mishra

Saurabh Mishra is a Cloud Evangelist (GDE) with a deep passion for cloud architecture, DevOps, and automation. He actively engages with the global tech community, sharing insights on cloud-native technologies, security best practices, and multi-cloud strategies.As an experienced speaker and mentor, Saurabh has delivered sessions at conferences, meetups, and workshops, helping teams accelerate their cloud adoption, modernization and optimization journeys.

Saurabh Mishra is a Cloud Evangelist (GDE) with a deep passion for cloud architecture, DevOps, and automation. He actively engages with the global tech community, sharing insights on cloud-native technologies, security best practices, and multi-cloud... Show more

Konstantinos Passadis

Konstantinos Passadis

Konstantinos is a passionate IT professional and Microsoft Certified Trainer with over two decades of experience in crafting and deploying comprehensive IT solutions. His expertise lies in Microsoft technologies, evident in his Microsoft Azure MVP status. As a Cloud Solutions Architect, he specializes in designing enterprise architectures for cloud environments, including Azure, M365, and hybrid/multi-cloud solutions. Konstantinos is a lifelong learner, continually expanding his knowledge and certifications across various vendors, primarily Microsoft. He is a dedicated community leader and advocate, spearheading knowledge-sharing initiatives through his Microsoft Tech Group, live sessions, and blog posts.

Konstantinos is a passionate IT professional and Microsoft Certified Trainer with over two decades of experience in crafting and deploying comprehensive IT solutions. His expertise lies in Microsoft technologies, evident in his Microsoft Azure MVP st... 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.