About Us
we built the agency we wish existed.
Email Kong is a London-based CRM and retention agency for DTC brands that take growth seriously. We handle email, SMS, WhatsApp, automation, and the full customer journey - built in-house, from strategy to send.
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how email kong started.
Email marketing was broken - and everyone in the industry knew it.
Brands were paying agencies for cookie-cutter flows, recycled templates, and monthly reports dressed up to look like results. The real work - the strategy, the customer psychology, the technical architecture - was being skipped.
So in 2021, Bogdan Mihalache and Cynthia de Gelder built something different: an agency built around one question. What would it actually take to own the entire customer journey?
Bogdan Mihalache
Co-Founder & CEO
That meant going deeper than email. It meant learning every corner of the Klaviyo platform, integrating with the entire Shopify ecosystem and treating retention not as a channel but as a growth engine.
Five years later, Email Kong is one of the fastest-growing Klaviyo Platinum Partners in the world - placing in the top 2.5% of agencies globally - and has helped over 140 DTC brands scale profitably through owned channels.
Cynthia de Gelder
Co-Founder & COO
what we believe.
Retention is the highest-ROI lever most brands are ignoring. Every new customer you acquire is worth more if you can bring them back. We build the systems that make that happen.
Strategy without execution is just a deck. We don’t consult and disappear. We build, test, and manage everything ourselves - so the strategy actually ships.
Owned channels should be your most profitable ones. Email, SMS, and WhatsApp shouldn’t just “support” paid. They should generate revenue that stands on its own.
The inbox is earned, not assumed. Deliverability, segmentation, sender reputation - we treat the technical foundations of email marketing as seriously as the creative.
Generic is the enemy of growth. Every flow, campaign, and sequence we build is custom to your brand, your customers, and your margins. We don’t do one-size-fits-all.
what makes us different.
Most email agencies are execution shops. They’ll build your welcome flow and send your weekly campaigns. That’s the floor, not the ceiling.
At Email Kong, we work the entire funnel - from the first opt-in to the subscription renewal to the post-purchase tracking page.
We’ve delivered over 500 Klaviyo audits. We sit on Klaviyo’s Advisory Council. And we’ve helped brands turn owned channels into theirmost predictable revenue stream.
That’s the standard we hold ourselves to - and what we’ll bring to your brand.
ready to make retention your growth engine?
Whether you want a free audit or you're ready to talk strategy — we're here.
