Arnout Hellemans is an online strategy consultant with a focus on SEO, SEA, CRO, furthermore into gadgets, Android mobile phones and (offline) cooking. Online since 1992.

When Els speaks, the room listens. With good reason. Because she isn’t just an expert in UX research and improving the online user experience. She’s also a top rated public speaker. In 2024 Els was awarded the Legend of Experimentation award at the Experimentation Elite awards.

How do you tie your research in with your business KPI’s? How do you make sure your findings are valid and not influenced by your own biases? And how exactly do you ask the right questions? These are the topics Els tackles with grace and precision.

Gerda Vogt-Thomas is the co-founder of Koalatative, a CRO agency dedicated to creating impactful, customer-centered solutions. With a passion for optimizing digital experiences, Gerda blends data-driven insights with a fresh, common-sense approach to help businesses grow sustainably. Known for her candid take on risk management and experimentation, she encourages clients to embrace testing and real-world feedback to drive success.

Lucia van den Brink is the co-founder of Increase Conversion Rate.com, an advanced experimentation consultancy dedicated to scaling CRO and driving real, measurable results. With over 800 A/B tests and 25 million+ visitors impacted, Lucia has established herself as a leader in the CRO space, recognized for her award-winning expertise in scaling experimentation programs and building inclusive testing cultures. She’s the creator of the 1-2-4 Brainstorm Framework, which promotes collaboration by ensuring that every idea—whether from interns or executives—can be heard and valued.

Beyond her professional work, Lucia is a former karate competitor, literary novelist, and the founder of Women in Experimentation, a vibrant community of over 999+ women in the industry, dedicated to elevating diverse voices in CRO.

People Leader. Experienced marketer acting as a bridge between the business and the tech. Google Squared Online certified change maker that is naturally very inquisitive when it comes to exploring new things and drawn to the unknown. Doesn't usually get trapped in bureaucracy, tries to break the silos and facilitates engagement across business functions. Problem-solver that is not afraid to roll up the sleeves when necessary.

Stewart is a highly experienced commercial and digital leader, head of an award winning experimentation programme at RS - a FTSE100 global product and service solutions provider for industrial customers, enabling them to operate efficiently and sustainably

He enables organisations to make better decisions at scale through the scientific rigour of data, statistics and experimentation, driving iterative commercial value for businesses and shareholders.

Tim Stewart, a Digital Consultant at trsdigital Ltd, brings over 25 years of experience in optimizing business and marketing performance through analytics and testing technologies. He has successfully delivered commercial solutions across various industries, focusing on conversion rate optimization, analytics, business intelligence, and commercial analysis.

With a strong background in media, advertising sales, e-commerce, and project management, Stewart helps clients refine processes, improve user experiences, and drive profitability. His expertise spans both online and offline strategies, aiming to deliver innovative solutions that align with client needs and customer expectations.