The Conference known as Experimentation island: year number 2 is scheduled now! February 24/25/26, 2026 - again on St. Simons island, GA, United States.

This 3-day event at Sea Palms resort is for optimizers who want to improve. Our event is designed for people who care, connect, and share. Tickets are available now!

Watch the summary video of our inaugural edition (February 2025):

The Conference known as Experimentation island is:

  • Actionable content + entertaining evenings

  • Interesting partners + a wonderful location

  • Good food & drinks + hotel stay included

  • Great speakers + awesome attendees

This event is organized by the Test & Learn Community, and the second year edition will take place again on the beautiful shores of St. Simons Island, GA.It's more than a conference; it's an experience where optimizers, data-driven decision-makers, UX experts, and growth specialists come together to inspire and be inspired.

#Ei2025 keynote room

World-class content: Featuring 10 single-track keynotes by industry leaders and 30 unconference break-out sessions, you'll gain actionable insights into experimentation culture, data-driven decisions, conversion copywriting, UX, and behavioral science.

A curated community: With just 150 attendees, and ensuring a mix of passionate optimizers across roles (product, marketing, UX, data, and beyond), this is the perfect place to connect and collaborate.

Memorable evenings: Beyond the sessions, enjoy fun-filled dinners, games, and opportunities to unwind and build meaningful connections.

A unique setting: Nestled on the serene St. Simons Island, our exclusive event location at Sea Palms offers a great environment for learning and networking. Meals, hotel stays, and activities are included for a seamless experience.

Why come to Experimentation island?

This is your chance to learn from leading experts, exchange ideas with like-minded peers, and take your optimization skills to the next level, all while enjoying the magic of an island retreat. Whether you’re a seasoned practitioner or new to the field, you’ll leave with fresh perspectives, valuable insights, and a renewed passion for what you do.

Our #Ei2026 performers

#Ei2026 will have 10 single-track keynotes, 30 (unconference) break-out sessions, and 2 fun evenings. More performers will be announced closer to the event.
Our keynote speakers will cover topics like experimentation culture, data driven decision making, conversion copywriting, UX research and consumer psychology.

Our #Ei2026 schedule

> Hello: Tuesday, February 24, 2026 (1 pm Eastern Time – hotel check-in starts)> Goodbye: Thursday, February 26, 2026 (1 pm Eastern Time – event ends)

During the registration you will be offered our optional shuttle service from Jacksonville international airport on Tuesday (11.30 am) and back on Thursday (arrival 3.30 pm).

* Day 1: Check-in > welcome > keynotes > dinner > unconference > games;* Day 2: Breakfast > keynotes > lunch > unconference > dinner > keynote > fun;* Day 3: Breakfast & Check-out > keynotes > thank you > lunch bags.
Detailed schedule will be published closer to the event.

Our #Ei2026 tickets

The magic of Experimentation island is in the fact that we will be together for 3 days with 8 hours of planned content and at minimum 24 hours of meeting other passionate optimizers during our breaks, breakfasts, lunch, dinners, and evening time.

#Ei2026 is with approx. 150 attendees, depending on how the rooms in our exclusively rented hotel location will be occupied. We have a limit of 3 tickets per organization.

* Prices include your hotel room, but exclude 3% payment fees. Subscribe to our event email list to receive a discount, or connect with our community and media partners for potential bigger discounts.

  • Agency or contractor? Bring a client / prospect and both get $150 discount per room.

  • Inhouse? Bring 1 colleague and get $500 discount together (* $250 per room).

  • Inhouse? Bring 2 colleagues and get $900 discount together (* $300 per room).

  • Non sponsoring vendor? Bring a client / prospect to be allowed to buy a ticket.

The intended audience for this event is passionate practitioners in fields related to conversion optimization and experimentation. You will be asked for your motivation when claiming a ticket. Organizers reserve the right to approve registrations.

Our #Ei2026 location

Our handpicked and fully booked event location is on an island in GA, US: Sea Palms.
Address: 515 N Windward Dr, St Simons Island, GA 31522, United States.

When you are booking extra nights before or after the event directly at Sea Palms, please let us know, so we can try to keep you in the same hotel room at the event.

During the registration you will be offered our optional shuttle service from Jacksonville international airport on Tuesday (11.30 am) and back on Thursday (arrival 3.30 pm).

Our #Ei2026 FAQ

Become a #Ei2026 partner!

The organizer of the event is Kelly Wortham of the Test & Learn Community, known for the TLC Slack. The event is hosted by Ton Wesseling, founder of Conversion Hotel.

Experimentation island has Event, Community, and Media partners. They all will be promoted in our communications. Together with inhouse experts we are the industry.-> Event partners (vendors) run a 8 minute content snack (no sales pitch) at the main stage, they also have a small booth, where the will host a game for our attendees.-> Community partners (agencies) join one of our break-out panel discussions, promote the event in their network, and buy bundled tickets for their clients.
-> Media partners (publishers) promote the event in their network, and have the ability to sell tickets at a discounted pricing.

Reach out if you want to become a partner!

#Ei2025 app download

Please use your mobile phone and scroll down to get to the app download links.
* can only be used by #Ei2025 attendees

Experimentation island 2025

Use the #Ei2025 event app to:

  • Connect with other attendees

  • See the detailed event schedule

  • Particpate in the speaker Q&A

  • Post and comment on our newsfeed

  • Get slides and pictures after the event

#Ei2025 App store download
#Ei2025 Play store download

Songs: Josh Silverbauer
Walk-on song creator
Partner @ From the Future

Josh Silberbauer

Josh turns analytics & CRO into a show worth watching. An industry favorite, Josh is known for his hilarious parody songs, viral videos, and iconic moments that blend sharp wit with deep analytical insights. Chances are, you’ve seen his art too - maybe even on your shirt - featuring his famous cartoon character, “Cookie.” Whether he’s spoofing conference commercials or penning clever tunes to introduce speakers, he’s darn funny. And creative. And smart. We couldn’t be more thrilled that he’s agreed to join us again this year. Take an Advil. Put on some Chapstick. We’re gonna laugh!

Experimentation island theme song:

When did you meet Josh?
I’ve known Josh virtually forever, but somehow, I didn’t get to actually meet him in person until last year at the Marketing Analytics Summit, where he had us all on the floor with his antics introducing speakers.

Why did you invite Josh?
Well, besides being just an all-around great person to have a conversation with, as soon as I saw the magic he could bring with his live walk-on songs, I knew we had to have him at Experimentation island. I reached out to Ton and shared my vision of Josh creating something unique and memorable for our speakers. Ton was all in, and luckily, so was Josh. And boy was he awesome, so of course Josh is back!

Enjoy Josh back on stage at #Ei2026. And Josh, thank you for all your hard work creating these amazing walk-on songs!

Kelly Wortham
Head of Experimenation island

Organizer: Kelly Wortham
Head of Experimentation island
Founder @ Test & Learn Community

Kelly Wortham

Kelly is a seasoned leader in experimentation, with a career spanning over two decades in optimizing user experiences and driving data-informed decision-making. Currently heading the Test & Learn Community, Kelly has built a vibrant and engaged network of professionals dedicated to advancing the practice of experimentation.

Her career highlights include leading experimentation efforts at Dell, EY, and Search Discovery, where her innovative approaches earned her recognition across the industry. Kelly’s journey marks a strong commitment to learning and sharing.

This passion led her to envision a dedicated event for the Test & Learn Community that would foster deep connections, insightful discussions, and hands-on learning experiences. The result? Experimentation island!

How did Experimentation island come about?
Kelly and I first crossed paths virtually in the early days of our careers when we both received accolades for our work in A/B testing (yes, the WhichTestWon awards back in 2009/2010). We finally met in person in 2018, where Kelly’s expertise and dynamic experimentation approach left a lasting impression. Over the years, I’ve admired how she’s nurtured the Test & Learn Community, which has grown into a powerhouse of experimentation knowledge. When Kelly expressed her desire to create an event tailored to her Community, it was clear that combining her network in the US with my experience in organizing Conversion Hotel was a perfect match.

Why is Kelly leading Experimentation island?
Kelly’s leadership in the experimentation community, coupled with her deep understanding of what makes an event truly valuable, makes her the ideal Head of Experimentation island. Her ability to connect people, spark meaningful conversations, and foster a collaborative environment ensures that this event will be more than just a conference. #Ei2026 will be a great experience where ideas flourish, and actionable insights are gained. With Kelly as organizer, Experimentation Island is set to become a cornerstone event for optimization and experimentation professionals in the US.

Thank you Kelly for becoming a partner, and Head of Experimentation island!

Ton Wesseling
Host of Experimenation island

Host: Ton Wesseling
MC of Experimentation island
Founder @ Conversion Hotel

Ton Wesseling

What can you say about one of our industry’s founders? The Legend of Experimentation? The creator of such beloved touchstones as Conversion Hotel, the Experimentation Culture Awards, and Online Dialogue? A man who has welcomed, taught, guided, and productively challenged so many of us in this field?

Maybe, simply, “Thank you.”

Ton’s career has helped companies around the globe achieve data-informed growth and transformational change. As a consultant, entrepreneur, influential thinker, writer, speaker, and event organizer, Ton has inspired many of us to advance the practice of experimentation.

Ton teaches by example (with humor and charm) and leaves an indelible impression. He also casts a sustaining vision: When we share our passion for optimization and experimentation, we can learn more and make better connections to achieve the excellence we seek. Thanks to Ton, that’s why we’re here at Experimentation island!

When did you meet Ton?
Ton and I first heard of each other back in 2009 when we both had tests up for the "Which Test Won?" awards. I remember thinking, “This guy is my competition!” But when we finally met in person at another conference, I couldn’t help but be struck by how incredibly kind and, of course, incredibly intelligent he was. We spent time geeking out over each other’s programs, and I quickly realized that Ton was not just brilliant but also generous and warm hearted, a paragon of leadership in our field.

How did Experimentation island come about?
Starting an experimentation conference has always been a dream of mine. I’d had the honor of helping organize the X-Change Conference and have had the bug ever since. On my very first day at a new job, I even begged, “Can we start the TLC conference?!” But it wasn’t meant to be at that time. Luckily for me, Ton shared the same vision and was ready to bring his incredible Conversion Hotel event to the U.S. as Experimentation island. He trusted me to join him as a partner and organizer, and I couldn’t be more grateful to work alongside such an inspirational leader and friend.

Thank you, Ton, for your trust, your vision, and for being the incredible host that makes this event so unique.

Kelly Wortham
Head of Experimentation island

#Ei2025 karaoke songs

Ei2025 theme song

Erin Weigel

Paula Sappington

Tim Wilson

Aleksander Fabijan

Lindsay Juarez

Rishi Rawat

Heather Greene

Alex Arvanitidis

Val Kroll

Wil Reynolds

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Passionate digital optimizers will spend 3 days at Experimentation island sharing their knowledge, experiences and skills in the field of Product, UX, Marketing and Data.

  • Actionable content + entertaining evenings

  • Interesting partners + a wonderful location

  • Good food & drinks + hotel stay included

  • Great speakers + awesome attendees

Subscribe to our email list, and receive event updates & ticket discount codes.

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