Most Active Speakers 2025

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

  • 1125 speakers
  • Auto-generated
Nathan Clouse

Nathan Clouse

MVP w/ 15 years of #AX2009, #AX2012, and #MSDyn365FO technical and functional experience. I write code, sometimes it's good. #tattoos, #deathmetal and #lifting

MVP w/ 15 years of #AX2009, #AX2012, and #MSDyn365FO technical and functional experience. I write code, sometimes it's good. #tattoos, #deathmetal and #lifting Show more

Luc van Vugt

Luc van Vugt

In 1999, Luc van Vugt stepped into the Dynamics 365 Business Central world, training hundreds of developers. After Microsoft acquired Navision, he joined Microsoft’s Dynamics localization team GDL as tester, UA specialist, and project lead. For 6 years, he was closely involved with all successive releases. Since he left Microsoft, he has become an active community member by means of his blog. He is co-founder of Dutch Dynamics Community and a speaker at conferences. For all his community work, Luc has been awarded MS MVP since 2011. In 2014, he co-founded NAV Skills, supporting Dynamics 365 Business Central, at that time still called Dynamics NAV, pros around the globe with, among other things, webinars until 2019. He continued ever since to organize webinars under the flag of Areopa webinars. In 2012, Luc started fluxxus.nl, doing miscellaneous projects, including Dynamics 365 Business Central development courses and workshops on design patterns, and automated testing. Luc is one of the main driving forces on test automation in the Dynamics 365 Business Central community.

In 1999, Luc van Vugt stepped into the Dynamics 365 Business Central world, training hundreds of developers. After Microsoft acquired Navision, he joined Microsoft’s Dynamics localization team GDL as tester, UA specialist, and project lead. For 6 yea... Show more

Trey Johnson

Trey Johnson

Trey Johnson is a life-long Microsoft Data Platform enthusiast.

Having been involved with Microsoft Data and Analytics technology for 30+ years, starting with SQL Server on OS2/Warp, Trey has held the roles of Executive leader, Advisor, Consultant, Product Owner, Developer and IT team member. For the last 25 years, Trey has been speaking at conferences globally such as PASS, Microsoft Events, VS Live and many others. Trey remains passionate about the Data Community having been involved in the earliest stages of things like SQL Saturday and the Professional Association for SQL Server (PASS).

He has spent the last 16 years focused on ERP and CRM customers helping them do more with their data.

Today, he works with upwards of 200 customers a year to help them architect the best path forward on their Data Journey and now gets to do so with Microsoft Fabric!

When not focused on Data & Analytics, Trey spends his spare time restoring classic Porsche motorcars and boats from his home base in Florida, USA!

Trey Johnson is a life-long Microsoft Data Platform enthusiast. Having been involved with Microsoft Data and Analytics technology for 30+ years, starting with SQL Server on OS2/Warp, Trey has held the roles of Executive leader, Advisor, Consult... Show more

Justin Reock

Justin Reock

Justin Reock is the Deputy CTO of DX (getdx.com), and is an engineer, speaker, writer, and software practice evangelist with over 20 years of experience working in various software roles. He is an outspoken thought leader, delivering enterprise solutions, numerous keynotes, technical leadership, various publications and community education on developer experience and productivity.

Justin Reock is the Deputy CTO of DX (getdx.com), and is an engineer, speaker, writer, and software practice evangelist with over 20 years of experience working in various software roles. He is an outspoken thought leader, delivering enterprise solut... Show more

Marcus Hellberg

Marcus Hellberg

Marcus has spent the past 20+ years combining modern web technologies and Java. More recently, he's been exploring how AI is changing the way we interact with computers. Marcus is always curious to learn new things and loves helping developers learn new things. Marcus is a Java Champion and currently works as the VP of AI Research at Vaadin.

Marcus has spent the past 20+ years combining modern web technologies and Java. More recently, he's been exploring how AI is changing the way we interact with computers. Marcus is always curious to learn new things and loves helping developers learn ... Show more

Ricardo Sueiras

Ricardo Sueiras

I have spent the last 30 years spent working in the technology industry, and have over 20 years experience working with open source. I help customers solve business problems with open source technologies and cloud. I am a Developer Advocate for open source at AWS. I help increase awareness of AWS contributions in open source, and why AWS is a great place to run your open source workloads.

I have spent the last 30 years spent working in the technology industry, and have over 20 years experience working with open source. I help customers solve business problems with open source technologies and cloud. I am a Developer Advocate for open ... Show more

Adrian Machado

Adrian Machado

I am a Staff Software engineer working at Zuplo. I specialize in our open source technology and adopting emerging technologies (ex. AI) at the company. This includes our work on RateMyOpenAPI, Zudoku, Mockbin, and various other tools. I've written several blogs for Zuplo, and spoken at several conferences like API World, Plug-n-play, etc. Prior to Zuplo, I was a tech lead in the Facebook Videos org.

I am a Staff Software engineer working at Zuplo. I specialize in our open source technology and adopting emerging technologies (ex. AI) at the company. This includes our work on RateMyOpenAPI, Zudoku, Mockbin, and various other tools. I've written se... Show more

Patrick LeBlanc

Patrick LeBlanc

Patrick LeBlanc is a currently a Principal Program Manager at Microsoft and a contributing partner to Guy in a Cube. Along with his 15+ years’ experience in IT he holds a Masters of Science degree from Louisiana State University. He is the author and co-author of five SQL Server books. Prior to joining Microsoft he was awarded Microsoft MVP award for his contributions to the community. Patrick is a regular speaker at many SQL Server Conferences and Community events.

Patrick LeBlanc is a currently a Principal Program Manager at Microsoft and a contributing partner to Guy in a Cube. Along with his 15+ years’ experience in IT he holds a Masters of Science degree from Louisiana State University. He is the author and... Show more

Jared Matfess

Jared Matfess

Jared Matfess is an AI Architect at AvePoint, bringing over ten years of industry experience and a decade in consulting to help organizations harness the transformative power of artificial intelligence. A Microsoft MVP and published author, Jared specializes in bridging cutting-edge technology with real-world business solutions. Leveraging his expertise in the Microsoft ecosystem, he designs and delivers strategies that drive digital transformation, streamline processes, and unlock new opportunities. Jared earned his Bachelor’s degree in Computer Science from the University of Hartford, an MBA from the University of Massachusetts at Amherst, and a Master of Science in Computer Information Systems from Boston University. He frequently speaks at industry events, inspiring teams to discover the full potential of AI.

Jared Matfess is an AI Architect at AvePoint, bringing over ten years of industry experience and a decade in consulting to help organizations harness the transformative power of artificial intelligence. A Microsoft MVP and published author, Jared spe... Show more

Carike Botha

Carike Botha

She is a Microsoft MVP in Power Apps and Power Automate. Her passion is being involved in the tech community. She currently leads the Power Platform team at iSolve business solutions. She loves to keep up to date with whatever is new.

She is a Microsoft MVP in Power Apps and Power Automate. Her passion is being involved in the tech community. She currently leads the Power Platform team at iSolve business solutions. She loves to keep up to date with whatever is new. Show more

Siddharth Vaghasia

Siddharth Vaghasia

As an Independent Consultant with around 16 years of experience, Siddharth has expertise in M365 Development as in SharePoint development, Teams App Development, Power Platform, Azure, and . NET and Integration of M365 with external applications. Siddharth also has vast experience in implementing CMS, collaboration, and communication solutions, wherein he has architected various custom end-to-end solutions. Siddharth has found his passion in sharing his knowledge by writing articles, conducting webinars, organizing various community events, and contributing to the PnP initiative. He also loves to develop reusable solutions, samples, and scripts and contributed to open source repos. He has also been awarded as Microsoft MVP in the 4x M365 Development category and Business Application, and 4 times C# Corner MVP.

I am also a co-founder of Pune Tech Community, where we provide a platform and organize various events M365 Saturday, Global Azure, Global AI BootCamp, Global Power Platform Bootcamp etc..

As an Independent Consultant with around 16 years of experience, Siddharth has expertise in M365 Development as in SharePoint development, Teams App Development, Power Platform, Azure, and . NET and Integration of M365 with external applications. Sid... Show more

Raymond Comvalius

Raymond Comvalius

Raymond Comvalius is an independent IT architect and trainer from the Netherlands. He has been active in the IT industry for more than 30 years, of which 25+ years focused on Microsoft infrastructure products for both Government and financial institutes. Raymond is the author of multiple books on Windows and security. As an architect he supports organizations in IT strategy and realization of their next generation workplace infrastructure. Raymond is actively involved with the national and international IT community and was a speaker at multiple international Microsoft events.

Raymond Comvalius is an independent IT architect and trainer from the Netherlands. He has been active in the IT industry for more than 30 years, of which 25+ years focused on Microsoft infrastructure products for both Government and financial institu... Show more

Kirti Prajapati

Kirti Prajapati

Kirti is an Office Development MVP and Microsoft Certified Trainer, has 18+ years of progressive experience in Architect, Designing, Developing, Deployment and Administration of SharePoint Applications and Implementation of business applications in Client/Server and Distributed Environments. Kirti works with clients to develop and deploy comprehensive solutions on SharePoint and Office 365.
Kirti shares his knowledge at https://kirtiprajapati.com/ as he believes that Knowledge is power and sharing knowledge is empowering!

Kirti is an Office Development MVP and Microsoft Certified Trainer, has 18+ years of progressive experience in Architect, Designing, Developing, Deployment and Administration of SharePoint Applications and Implementation of business applications in C... Show more

Danielle Cook

Danielle Cook

Danielle Cook has been a driving force in the cloud native industry since 2016, helping organizations adopt technologies that make cloud native enterprise-ready while effectively communicating their business value. She co-authored, launched and maintains the CNCF Cloud Native Maturity Model and serves as co-chair of the CNCF Cartografos Working Group. Danielle is also a co-author of Admiral Bash’s Island Adventure with Phippy + Friends, a CNCF book designed to make cloud native concepts more accessible.

A passionate advocate for open source and community-driven innovation, Danielle is a CNCF Ambassador and founded KubeCrash, a virtual event dedicated to fostering collaboration around cloud native and open source technologies.

Danielle Cook has been a driving force in the cloud native industry since 2016, helping organizations adopt technologies that make cloud native enterprise-ready while effectively communicating their business value. She co-authored, launched and maint... Show more

Gerardo Mejia

Gerardo Mejia

Es especialista en ciberseguridad ofensiva, con enfoque en operaciones de red teaming, purple teaming, pruebas de penetración, campañas avanzadas de phishing y ataques dirigidos a entornos de Active Directory. Actualmente forma parte del un equipo regional de seguridad ofensiva, donde diseña y ejecuta ejercicios de simulación de adversarios para fortalecer la resiliencia de las organizaciones ante amenazas sofisticadas.

Cuenta con certificaciones destacadas, como CRTO, CRTP, PNPT, eWPT, CR (HTB Ambassador), C-ADPenX y eCCPT.

Ha sido conferencista en eventos internacionales como PWNEDCR en Costa Rica, BSides Panamá, Dojo Conf Panamá, HackConRD en República Dominicana y Ekoparty en Argentina, Defcon 33 La Villa, Kavacon

Es especialista en ciberseguridad ofensiva, con enfoque en operaciones de red teaming, purple teaming, pruebas de penetración, campañas avanzadas de phishing y ataques dirigidos a entornos de Active Directory. Actualmente forma parte del un equipo re... Show more

Kim Wuyts

Kim Wuyts

Dr. Kim Wuyts is a leading privacy engineer with over 15 years of experience in security and privacy. Before joining PwC Belgium as Manager Cyber & Privacy, Kim was a senior researcher at KU Leuven where she led the development and extension of LINDDUN, a popular privacy threat modeling framework. Her mission is to raise privacy awareness and get organizations to embrace privacy engineering best practices. She is a guest lecturer, experienced speaker, and invited keynote at international privacy and security conferences such as OWASP Global AppSec, RSA, Troopers, CPDP, and IAPP DPC. In the last few years, Kim has been delivering privacy awareness and privacy threat modeling training at many events, including academic guest lectures and corporate training.

Kim is also a co-author of the Threat Modeling Manifesto+Capabilities, program co-chair of the International Workshop on Privacy Engineering (IWPE), and a member of ENISA’s working group on Data Protection Engineering.

Dr. Kim Wuyts is a leading privacy engineer with over 15 years of experience in security and privacy. Before joining PwC Belgium as Manager Cyber & Privacy, Kim was a senior researcher at KU Leuven where she led the development and extension of LINDD... Show more

Cay Horstmann

Cay Horstmann

After growing up in the German countryside, I studied in the United States (M.S. in computer science from Syracuse University, and a Ph.D. in mathematics from the University of Michigan in Ann Arbor). For four years, I was VP and CTO of an Internet startup that went from 3 people in a tiny office to a public company. I taught computer science at San Jose State University and held visiting appointments at universities in Germany, Switzerland, Vietnam, and Macau. In my copious spare time I write books and articles on programming languages and computer science education.

After growing up in the German countryside, I studied in the United States (M.S. in computer science from Syracuse University, and a Ph.D. in mathematics from the University of Michigan in Ann Arbor). For four years, I was VP and CTO of an Internet s... Show more

Luis Guirigay

Luis Guirigay

Luis Guirigay is the WW Head of Infrastructure Solutions at AWS where he leads the technical offerings and business strategies for Compute, Storage and Networking Solutions. Luis and his team build and deliver production-ready, supported AWS Solutions which help customers and partners solve their most pressing use cases and challenges. He is a published author, speaker, and subject matter expert in the areas of cloud, modernization, high availability, and disaster recovery.

Luis Guirigay is the WW Head of Infrastructure Solutions at AWS where he leads the technical offerings and business strategies for Compute, Storage and Networking Solutions. Luis and his team build and deliver production-ready, supported AWS Solution... Show more

Gaurav Saxena

Gaurav Saxena

Gaurav Saxena is an engineering leader in the field of platform and cloud engineering with over 20 years of experience in the software industry. His technical expertise includes Stream-based architectures, Kubernetes, Service Mesh, Software Supply Chain Security, and Observability.

Gaurav Saxena is an engineering leader in the field of platform and cloud engineering with over 20 years of experience in the software industry. His technical expertise includes Stream-based architectures, Kubernetes, Service Mesh, Software Supply Ch... Show more

Márton Braun

Márton Braun

Márton is a Kotlin Developer Advocate at JetBrains, working on making Kotlin Multiplatform awesome. Passionate about education, he's a guest lecturer at the Budapest University of Technology and Economics.

He’s been contributing to the community through writing, speaking, and open source libraries since his university days. He is a Google Developer Expert for Android, and a co-organizer of Android Budapest.

Márton is a Kotlin Developer Advocate at JetBrains, working on making Kotlin Multiplatform awesome. Passionate about education, he's a guest lecturer at the Budapest University of Technology and Economics. He’s been contributing to the community t... Show more

Anshika Koul

Anshika Koul

Anshika has 14 years experience developing software at Posten Bring - Norwegian National Postal Service, building logistics systems and APIs that enable millions of people in the Nordics to order and receive packages. She values studying users, and fostering cross-departmental collaboration and building great products with her team. A typical day at work involves climbing stairs to the 18th floor of Posten Bring's towering headquarters in the heart of Oslo, where she will transform whiteboard scribbles into deployed features.

She loves sharing fun stories and experiences at tech conferences and embracing new challenges. She's spoken at 13 international conferences over the past year including Javazone, JFokus, Adacon, JCON, NDC Oslo, KotlinConf, JavaDay Istanbul, DevBcn and Devoxx Poland among others.

Off-duty you'll find her chasing sunsets and culinary adventures, sampling flavours from around the globe.

Anshika has 14 years experience developing software at Posten Bring - Norwegian National Postal Service, building logistics systems and APIs that enable millions of people in the Nordics to order and receive packages. She values studying users, and f... Show more

Matteo Collina

Matteo Collina

Matteo is the Co-Founder and CTO of Platformatic.dev. He is also a prolific Open Source author in the JavaScript ecosystem and modules he maintain are downloaded more than 12 billion times a year. Previously he was Chief Software Architect at NearForm, the best professional services company in the JavaScript ecosystem. In 2014, he defended his Ph.D. thesis titled "Application Platforms for the Internet of Things". Matteo is a member of the Node.js Technical Steering Committee focusing on streams, diagnostics and http. He is also the author of the fast logger Pino and of the Fastify web framework. Matteo is an renowed international speaker after more than 60 conferences, including OpenJS World, Node.js Interactive, NodeConf.eu, NodeSummit, JSConf.Asia, WebRebels, and JsDay just to name a few. He is also co-author of the book "Node.js Cookbook, Third Edition" edited by Packt. In the summer he loves sailing the Sirocco.

Matteo is the Co-Founder and CTO of Platformatic.dev. He is also a prolific Open Source author in the JavaScript ecosystem and modules he maintain are downloaded more than 12 billion times a year. Previously he was Chief Software Architect at NearFor... Show more

Satej Sahu

Satej Sahu

Satej works as Principal Data Engineer at Zalando SE with over 16 years of experience in the industry. He has worked with renowned organizations such as Boeing, Adidas, Honeywell specializing in architecture, big data and machine learning use cases. With a strong track record of architecting scalable and efficient systems, Satej has successfully delivered data-driven and ML applied solutions. He's also an author of two programming books named "Building Secure PHP Applications" and "PHP 8 Basics: For Programming and Web Development" with Apress / Springer publications with another one in pipeline.

Satej works as Principal Data Engineer at Zalando SE with over 16 years of experience in the industry. He has worked with renowned organizations such as Boeing, Adidas, Honeywell specializing in architecture, big data and machine learning use cases. ... Show more

John Belamaric

John Belamaric

John is a Sr Staff SWE, co-chair of K8s SIG Architecture and of K8s WG Device Management, helping lead efforts to improve how GPUs, TPUs, NICs and other devices are selected, shared, and configured in Kubernetes. He is also co-founder of Nephio, an LF project for K8s-based automation, and a maintainer of CoreDNS, a CNCF project for DNS-based service discovery.

John holds three patents, and is co-author of "Learning CoreDNS" from O’Reilly and "OpenStack Cloud Application Development" from Wiley.

John is a Sr Staff SWE, co-chair of K8s SIG Architecture and of K8s WG Device Management, helping lead efforts to improve how GPUs, TPUs, NICs and other devices are selected, shared, and configured in Kubernetes. He is also co-founder of Nephio, an L... Show more

Paula Januszkiewicz

Paula Januszkiewicz

Paula Januszkiewicz is the Founder and CEO of CQURE and CQURE Academy, companies she established back in 2008. She is also an Enterprise Security MVP, honorable Microsoft Regional Director, and a world-class cybersecurity expert, consulting Customers worldwide. In 2017, Paula graduated from Harvard Business School. She delivers keynotes and sessions at the biggest world conferences such as RSA, Black Hat, Microsoft Ignite, SecTor Canada, Australian Cyber Conference, GISEC, GITEX, LEAP, and many others. She is often a top-rated speaker, including being chosen as the No. 1 Speaker at Microsoft Ignite (among 1,100 speakers at a conference with 26,000 attendees) and at Black Hat Asia 2019. At the RSA Conference, two of her sessions were among the top 5 best rated. Paula is known for her unique stage presence that is always well-received among diverse audiences, often gathering thousands of people!

Paula has over 19 years of experience in the cybersecurity field, performing penetration tests, architecture consulting, trainings, and seminars. Every year, she takes over 200 flights to provide cybersecurity services for CQURE’s Customers. Paula and her Team also design security awareness programs for various organizations, including awareness sessions for top management. Together, they create various security tools (CQTools) supporting penetration tests, incident response, and forensics, which are shared with the community. Paula is a member of the Technical Advisory Board at the Royal Bank of Scotland/Natwest. And to top it all off, she has access to the source code of Windows!

Paula Januszkiewicz is the Founder and CEO of CQURE and CQURE Academy, companies she established back in 2008. She is also an Enterprise Security MVP, honorable Microsoft Regional Director, and a world-class cybersecurity expert, consulting Customers... Show more

Kristen Hosman

Kristen Hosman

With over 20 years in accounting, ERP systems, and Microsoft Dynamics, Kristen Hosman created Mount Evans Consulting to create accounting systems that fit each small business perfectly.

Kristen is a schooled accountant with a diverse background of accounting experience and brings these experiences and knowledge in working with small businesses to provide the solutions to fit their unique accounting needs. In addition, she is extensively involved in the Microsoft Dynamics community and regularly offers her valuable knowledge in open forums, interviews, and conference appearances.

Kristen serves on the advisory committee for Dynamics User Group (DUG). Her services and experience have earned her a renowned name, four consecutive GPUG All-Star nominations, a Granite Award, and Dynamics 365 All Star Award nomination. Kristen has also been recognized as a Microsoft MVP five years in a row, a recognition reserved for top technology experts who passionately share their knowledge with the community. As a Microsoft Certified Dynamics 365 Business Central Functional Consultant, she demonstrates a high level of domain expertise and can tackle even the most challenging projects.

With over 20 years in accounting, ERP systems, and Microsoft Dynamics, Kristen Hosman created Mount Evans Consulting to create accounting systems that fit each small business perfectly. Kristen is a schooled accountant with a diverse background o... Show more

Nelson Lopez

Nelson Lopez

Consultant and trainer in Fabric and Power BI. Microsoft MVP Data Platform. Certifications DP-700, DP-600, PL-300. You can find me at www.dataxbi.com.

Consultant and trainer in Fabric and Power BI. Microsoft MVP Data Platform. Certifications DP-700, DP-600, PL-300. You can find me at www.dataxbi.com. Show more

Simon Brown

Simon Brown

Simon is an independent consultant specialising in software architecture, and the author of “Software Architecture for Developers” (a developer-friendly guide to software architecture, technical leadership and the balance with agility). He is also the creator of the C4 model for visualising software architecture, and the founder of Structurizr. Simon is a regular speaker at international software development conferences, and travels the world to help organisations visualise and document their software architecture.

Simon is an independent consultant specialising in software architecture, and the author of “Software Architecture for Developers” (a developer-friendly guide to software architecture, technical leadership and the balance with agility). He is also th... Show more

Vinit Dhatrak

Vinit Dhatrak

Vinit is a seasoned software engineer with a demonstrated history of building on-premise and cloud-native distributed systems at scale. Currently, Vinit serves as a Lead Software Engineer at DocuSign, contributing to the Docusign's Storage team. With expertise encompassing cloud storage, distributed systems, and virtualization technologies such as Kubernetes, Docker, and the Linux Kernel, Vinit stands out as a thought leader in the tech industry. Throughout his career, Vinit has held pivotal roles at notable companies like Google, Box, Commvault, and Marvell, where he played an instrumental role in developing highly scalable and distributed cloud storage solutions. His proficiency in object-oriented design and systems programming, coupled with his capability to scale infrastructures to handle concurrent requests and planet-scale storage, positions him as a true expert in his field. (https://www.linkedin.com/in/vinit-dhatrak/)

Vinit is a seasoned software engineer with a demonstrated history of building on-premise and cloud-native distributed systems at scale. Currently, Vinit serves as a Lead Software Engineer at DocuSign, contributing to the Docusign's Storage team. With... Show more

Nic Vermande

Nic Vermande

Nic is an experienced hands-on technologist, evangelist and product owner who has been working in the fields of Cloud-Native technologies, Open Source Software, Virtualization and Datacenter networking for the past 21 years.

Passionate about enabling users and building cool tech solving real-life problems, you'll often see him speaking at global tech conferences and online events, spreading the word and walking the walk with customers and users.

Nic is an experienced hands-on technologist, evangelist and product owner who has been working in the fields of Cloud-Native technologies, Open Source Software, Virtualization and Datacenter networking for the past 21 years. Passionate about enabl... 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.