Abi has been a freelance optimisation consultant for the best part of 20 years and has worked with all sorts of companies (big and small) across a plethora of industries – you name it, she’s probably worked on it.

She’s got an axe to grind when it comes to websites and their owners who should be doing better for their users. With has a strong focus on finding all the things that your users hate about your website from usability uglies, functionality f*ck ups and accessibility agonies that make them wish they’d never landed on your pages in the first place. Whatever it is, or however deeply buried on your site it’s hiding, she’ll find it so you can fix it.

Abi also focuses on in-depth and unconventional user research techniques to truly get to the nitty gritty of who your users are, what makes them tick and how you build relationships with them long term through trust and resonance, the secret sauce to improving customer lifetime value and breaking free of the shackles of acquisition alone. Having worked with an exhaustive list of clients including FTSE 100 members, major biotechnology companies and e-commerce giants her breadth of industry knowledge is as extensive as it is impressive – and something she likes to occasionally share as an international keynote speaker.

With a background as a UX designer, developer, and teacher, Iqbal has served as a “co-pilot” to product teams for over ten years. He has guided teams through technical implementation, development, process optimization, training, workshops, and experimentation programs.

Iqbal is also an author of comics and graphic novels and runs the CRO Tales series, offering his insights on experimentation. As a developer, he has created automation and AI tools, including a text-mining AI app that quantifies user feedback and reviews, helping marketing and product teams understand the “voice of the customer.”

Charles founded Digital Nation to do two things very well for our clients. The first is to generate the right type of traffic for our clients websites and the second is ensure that those visitors then convert into customers.

Guido X Jansen is a cognitive psychologist who spent 20+ years learning that you can’t actually predict user behavior. His psychology background taught him to test assumptions rather than trust intuition, which is why he’s built CRO.CAFE (200+ episodes, four languages) around practitioners sharing what actually works.

He’s spoken at conferences across 26 countries and has a habit of asking the uncomfortable questions about why something isn’t converting. Psychology-first CRO, heavy on experimentation, light on guessing.

Jim Sterne sold business computers to companies that had never owned one in the 1980’s, consulted and keynoted about online marketing in the 1990’s, founded the Marketing Analytics Summit in 2002 and co-founded the Digital Analytics Association in 2004. His twelfth book is Artificial Intelligence for Marketing: Practical Applications. He is now advising companies on analytics strategy planning at Data Driven Leaders Studio as well as teaching the ins and outs of Machine Learning and Generative AI to marketers.

Sarah is an experimentation consultant with 18 years experience in digital. As CX Lead for REO Digital, Sarah has developed and driven experimentation strategy for a range of brands within financial services, retail and travel. Drawing on her background in science and direct response marketing, she helps clients improve their digital experience through research, analysis and AB testing.

Slobodan Manić is a web optimisation consultant whose background in web development grounds his work in technical reality. He is driven by a genuine need to understand exactly how things work, peeling back the layers of code and user behavior to find the logic behind the results. This deep curiosity fuels his role as a speaker and podcast host, where he breaks down complex digital concepts into clear insights. As the co-founder of the AI Fluency Club community, he continues to bridge the gap between emerging technology and practical application, focusing always on moving from observation to impact.

Lina Mikolajczyk is the Chief Data & AI Officer at Venatus and one of the rare people who can talk about experimentation, data platforms, MLOps, and header bidding… and somehow make it interesting. Before Venatus, she led Bumble’s transformation of its entire data ecosystem — introducing tools like Looker, dbt, Monte Carlo, Vertex AI, and Eppo, modernising pipelines, and delivering a platform overhaul that improved resilience, speed, availability, and retention (and reduced a lot of stress for a lot of engineers). She’s built analytics engineering teams from scratch, redesigned orgs, introduced AI into real products (not just decks), and delivered recommendation engines and sentiment models that actually shipped. Now at Venatus, she’s building a modern data, AI, and experimentation capability from the ground up: forecasting publisher behaviour, automating revenue ops, levelling up platforms, and proving that AI can drive EBITDA, not existential dread. Lina is also a panel moderator, speaker, and unapologetic experimentation nerd who believes every organisation deserves cleaner data, clearer decisions, and fewer meetings.

With a background as a UX designer, developer, and teacher, Iqbal has served as a “co-pilot” to product teams for over ten years. He has guided teams through technical implementation, development, process optimization, training, workshops, and experimentation programs.

Iqbal is also an author of comics and graphic novels and runs the CRO Tales series, offering his insights on experimentation. As a developer, he has created automation and AI tools, including a text-mining AI app that quantifies user feedback and reviews, helping marketing and product teams understand the “voice of the customer.”