Five years in, and K:LDN keeps getting bigger and better.
Over 1,000 marketers, operators, and brand builders flooded Tobacco Dock on 30th June for the fifth edition of Klaviyo's flagship London event. Some flew to be there—others arrived by Klaviyo-wrapped taxis…
What followed was a day packed with everything from mainstage keynotes and Klaviyo customer panels, to product deep-dive sessions and customer education workshops.
If you were there, you already know it was a day worth clearing your calendar for. If you weren’t, here's a glimpse at what went down.
Setting the scene
Ben Jackson, managing director EMEA at Klaviyo, opened the day with a welcome address before handing over to Klaviyo co-founder and co-CEO Andrew Bialecki and CMO Jamie Domenici.
Andrew and Jamie set out their vision for the next era of B2C: the autonomous CRM, where data, intelligence, and agents come together so brands can focus on outcomes rather than operations.
Joining them on stage was Chano Fernandez, co-CEO at Klaviyo, and Thomas Davis, chief customer data and digital DTC officer at KIKO Milano, for a candid conversation about what clear leadership actually looks like when everything is changing at once, and how customer relationships become the thing that holds it all together.
Across the venue
While the sessions were only just getting started, the venue itself was already alive. Activations included:
- A beauty room featuring products and treatments from Wonderskin, CurrentBody, Living Proof, and Manucurist, plus freebies for all.
- A sports activation offering personalised Castore football shirts, printed on-site. A nod to the World Cup in full swing.
- An immersive window display showcasing products from iconic fashion brands in Klaviyo's roster, including Dr. Martens, Paul Smith, and Fiorucci, to name but a few.
- A music-inspired Hall of Fame featuring Klaviyo clients as record covers, complete with QR codes to their case studies.
There was no shortage of things to see, try, and take home.
The breakouts begun: Skin Rocks, Fiorucci, and more
With the opening keynote done, seven sessions kicked off simultaneously across the venue.
Gemma Stevenson, chief commercial officer at Skin Rocks, joined Kelly Thacker, VP of product marketing at Klaviyo, to talk about what it takes to scale a brand built on radical honesty in one of retail's noisiest categories.
Fiorucci CDO Alberto Nicotra sat down with Emily McEvilly, chief customer officer at Klaviyo, for a conversation on what it actually looks like to take a cultural icon into accessible luxury for a new generation.
A panel on what it really takes to build customer relationships on your own terms was brought together by Jake Cohen, VP and head of industry strategy at Klaviyo. Joining him was Kirsty Tansey, senior director of growth at Gozney, Alannah Murphy, senior CRM manager at Virgin Experience Days, and Amy Last, marketing director at Must Have Ideas.
Over in the product lounge, a dedicated space for deep-dive platform sessions, Karisa Tate, lead PMM for Klaviyo Service, kicked things off by making the case for post-purchase support as a revenue driver, not a cost centre. She walked through how Klaviyo's Customer Agent handles returns, surfaces recommendations, restores loyalty points, and enriches customer profiles, all within a single conversation.
Meanwhile, three customer education sessions ran in parallel:
- Vivian Asonye, senior customer education specialist at Klaviyo, and Brett Bernstein, product manager and Gatsby founder at Klaviyo, covered how to turn Instagram engagement into owned subscribers using Klaviyo Social Marketing.
- Emily Shea, principal customer education specialist at Klaviyo, tackled what your owned channel strategy should look like in a world where AI is increasingly shaping how customers discover brands.
- Melody Flumendorf, customer education specialist at Klaviyo, made the case for WhatsApp as a serious revenue channel for marketers ready to go beyond the inbox.
The product headlines
Attendees reconvened on the main stage for the product roadmap session after lunch, eager to see what Klaviyo had been cooking up. Andrew, Kelly, and Karisa opened with a number that set the tone: 475+ features shipped since K:LDN 2025. But that was just the context. Here are the highlights.
Composer enters public beta
Klaviyo's next generation AI marketing agent, Composer, officially moved into public beta that day. Built on a brand's own customer data, performance history, and business goals, it identifies opportunities, recommends the next best action, and takes a campaign from prompt to launch-ready in minutes. Every recommendation is grounded in your actual account data: your flows, your segments, your campaign history, your brand voice. And nothing launches without human approval.
Klaviyo Social Marketing: generally available 7th July
Klaviyo Social Marketing was announced as moving to general availability on 7th July. It connects Instagram DMs, comments, and mentions directly to Klaviyo profiles, turning followers into subscribers you actually own. Set up a keyword-triggered auto-reply, capture a consented email or phone number, and that follower is ready to enter your welcome flow.
Customer Agent now speaks more than 100 languages
Klaviyo's Customer Agent now automatically detects a shopper's language and responds in that language, across web chat, email, SMS, and WhatsApp. French, German, Spanish, Italian, and more than 100 other languages. No setup required. One configuration.
Back to the breakouts: REFY Beauty, Castore, Clarks, and more
Fresh off the product announcements, attendees spread across the venue for another round of parallel breakout sessions.
Pia Tomlinson, VP of sales EMEA at Klaviyo, brought together three of the biggest brands in beauty right now for one of the most popular sessions of the day: Kate Poyser, senior CRM and loyalty manager at REFY Beauty, Kathleen Loftus, marketing director at Sculpted by Aimee, and Michelle Hurney, head of CRM at Wonderskin. The topic: how you take a customer who found you through a viral moment and turn them into someone who stays.
Meanwhile, Kev McFadyen, CMO at Castore, sat down with Byron Goodman, senior director of EMEA mid-market and large enterprise at Klaviyo, to talk about what it actually takes to go from British startup to near billion-pound global sportswear brand in under a decade.
And Mario Protano, director of performance marketing at Clarks, joined Ameet Shah, senior director of EMEA customer success at Klaviyo, to get into the detail of rebuilding a 200-year-old brand's digital programme from the ground up.
The product lounge also carried its energy into the afternoon, with a session that unpacked why bringing email, SMS, WhatsApp, and social together on one platform changes the game. Mindy Regnell, head of global market intelligence at Klaviyo, Deja Amato, product marketing at Klaviyo, and Kelsey Capps, product management at Klaviyo, were joined by Klaviyo agency partner Midge Hazewinkel, director of CRM at Domaine, to bring the real-world perspective.
The education track continued:
- Severine Chaari, senior customer education specialist at Klaviyo, ran a hands-on session on Composer, fresh out of private beta, walking through how to turn AI-surfaced insights into measurable action.
- Vivian hosted Isabella Howarth, CRM and email specialist at Daals, who shared how she's using Klaviyo Social Marketing to turn Instagram engagement into owned subscribers and repeat buyers.
The final block: Fashion, football, and enterprise transformation
After a short break, more sessions kicked off across the venue, with the fashion panel pulling in one of the biggest crowds of the day.
James White, senior director of partnerships EMEA at Klaviyo, brought together three of the most culturally relevant fashion brands around right now: Lisa Nielsen, senior digital marketing manager at Victoria Beckham, Jamie Degiorgio, digital director at Casablanca Paris, and Hayden Dore, CRM and loyalty manager at Billionaire Boys Club. Three brands at very different stages of the journey, one shared question: how do you build something that lasts?
Thomas Davis returned to the stage, joining Simon Bloom, enterprise sales leader for UK and EMEA at Klaviyo, for a conversation on what enterprise transformation really looks like from the inside. With three decades across some of the world's most recognisable brands and now leading one of the most ambitious digital transformations in global beauty, Thomas talked through how data and personalisation are reshaping the customer relationship across KIKO Milano's 1,400 stores worldwide.
With the World Cup in full swing, Danny Donachie, founder of Stable, couldn't have been better timed. Introduced by Robin Marchant, senior director of EMEA marketing at Klaviyo, Danny brought over 30 years inside elite sport to a session on the mental edge behind high-performing teams, drawing on his work with Carlo Ancelotti, Marcus Rashford, and Anthony Gordon. It wasn't a talk about sport. It was a masterclass in what it actually takes to win.
Rounding out the product lounge, Pia Tserkonis and Kirstin Meyerhoeffer, both from product marketing at Klaviyo, walked through Klaviyo's latest autonomous marketing innovations, from Composer to Social Marketing to AI personalisation tools, joined by Isabella Howarth from Daals, who shared how she's putting them to work
The education track closed out with three practical sessions:
- Vivian Asonye walked through how to design meaningful A/B tests across campaigns and flows in Klaviyo, joined by Adir Zangi, VP of retention and CRM at Klaviyo customer Elephant Stock, who shared lessons learned from putting it into practice.
- Melody Flumendorf covered how to set up and integrate Klaviyo's Customer Agent into a broader retention approach.
- Severine Chaari tackled smarter segmentation and how to use your data more effectively to drive meaningful conversion lifts, joined by Ellie Stewart, CRM manager at The Couture Club, on how she puts those strategies to work.
Enter Tinie Tempah
The whole venue knew something special was coming as the main stage welcomed its final guest of the day.
Tinie Tempah, musician, entrepreneur, and one of the most recognisable names in British culture, sat down with Jamie Domenici for a fireside chat on what it actually takes to build a brand that lasts.
They talked about Tinie’s journey from South London to music, fashion, food, and investing, and what the through-line across all of it actually is. The conversation got into how you stay culturally relevant without chasing trends, how you choose the right partners without losing your identity, and why personal truth is the most defensible asset you own.
Five years and counting
K:LDN's fifth edition delivered in every way. If anything, the conversations are getting sharper, the brands are getting bigger, and the energy keeps building year on year.
Thank you to every speaker, attendee, and partner who was part of it.
K:Cities rolls on this week with K:PAR in Paris on 1st July and K:BER in Berlin on 2nd July. If you're making the trip to either, we'll see you there. If not, we'll catch you next year.
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