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UK Klaviyo agency

Klaviyo email marketing agency for the UK

UK brands, we run your Klaviyo for you. Get £40k–£400k more email revenue a month in 30 days or less, or your money back.*

Get a free audit
30-day guarantee
$8,000,000+ in email revenue driven by data-driven strategies.
For Shopify brands already making at least £40k a month from email.
Straye email design
Tracksmith email design
Mulholland email design
Recess email design
Formes email design
Lululemon email design
Mighty email design
Straye email design
Tracksmith email design
Mulholland email design
Recess email design
Why UK brands pick us

Your whole Klaviyo account, run from the UK

There's no shortage of Klaviyo partners. We only do email and SMS, in British English and in pounds, and you're refunded if the revenue doesn't come.

Flows

Flows built for UK shoppers

Welcome, browse, checkout and post-purchase, timed to how your customers buy and reviewed every month.
Campaigns

A calendar that knows Boxing Day

Two to four sends a week, planned around Black Friday, Boxing Day, the January sales and the dates your brand owns.
List & segments

Consent you can stand behind

Sign-up forms that record what each person agreed to, and soft opt-in customers kept in their own segment.
Deliverability

Landing in the main inbox

Your own sending domain, authentication done properly and a weekly look at where Gmail, Outlook and Yahoo put you.
Design & copy

British English, priced in pounds

Designed and written by hand in British spelling, with VAT-inclusive prices, then sent to you to approve.
Revenue

What your Klaviyo should earn

Email revenue against a healthy figure for a UK brand your size, with a value on every fix we suggest.
UK rules

What changes for a UK Klaviyo account

Klaviyo's defaults lean American. We're a UK company, so we set your account up for UK law, UK shoppers and UK money.

Consent

PECR, not just GDPR

UK email law sits in PECR. Someone who bought from you can hear from you under the soft opt-in, and everyone else has to say yes first.
Fines

Fines now reach £17.5 million

The Data (Use and Access) Act 2025 raised PECR fines from £500,000 to £17.5 million or 4% of turnover, whichever is higher.
Online share

Over a quarter of sales are online

Around 28% of retail sales in Great Britain were made online in early 2026, so your list already shops the way email sells.
How we optimise

What we tune in a UK Klaviyo account

Small UK details decide whether an email reads as yours. These are the levers we pull each month.

US customers kept separate

Shipping to the US as well? Those customers get their own list, footer and send times, because US law differs.

Send times from your data

Each send goes out when your own customers open and order, read from your account rather than a US benchmark.

British spelling throughout

Colour, favourite and personalised, with dates written day first. Small things that tell a reader you're local.

UK retail dates

Black Friday, Boxing Day, the January sales and Mother's Day in March, planned weeks ahead.

Soft opt-in records

Who qualifies for the soft opt-in and who needs a yes, recorded before anyone is emailed.

Texts with your name on

UK texts can show your brand as the sender in place of a number. We set that up and check that STOP works.

Segments by what people buy

Groups built from orders and browsing, so a loyal customer hears something different from a first-time buyer.

Pounds per recipient

Every flow and campaign ranked by what each person spent, so the next fix is the one that pays.
Klaviyo
Shopify
Attentive
Postscript
Recharge
Yotpo
Google Analytics
PRISM
Numbers you can check

See what your Klaviyo really earns.

PRISM, our own analytics platform, ties each email and text to the Shopify order it won, and sends you the numbers every month.

Revenue, attributedSee what every campaign and flow really earns, not just opens and clicks. Your email platform and Shopify, read together.
Health checksDeliverability, list growth and engagement, checked for you, with anything slipping flagged before it costs you sales.
Clear monthly reportsA report every month in plain words. What happened, why it happened, and exactly what we're doing about it next.
BenchmarksYour numbers next to brands like yours, so you always know what good looks like and where the next win is.
Every order traced to a sendEach Shopify order is matched to the flow, campaign or text that brought it in.
Pounds per person, not opensSends ranked by what each recipient spent, since Apple's privacy changes make opens unreliable.
Faults found earlyA flow that stops sending or a dip in clicks is flagged before it costs a week of sales.
Set against your categoryEach rate compared with a fair target for brands like yours, so a good month is a fair call.
Worth most, done firstWe price every idea before we start it, then begin with the one worth the most to you.
Reminders before they run outReplenishment emails go out as a customer is likely to run low, timed from your own repeat orders.
A report every monthWhat we sent, what it earned and what comes next, in one email.
Why we do it

Your Klaviyo, earning what it should.

Klaviyo and Shopify, together
Every sale traced
Benchmarks
Deliverability
Repeat buyers
Fixes, ranked
Flow alerts
Reports
Private by design
Week oneWe read your Klaviyo account and Shopify orders, and agree the figure we're aiming for.
1
The deep-dive
Week twoConsent records checked, sending set up properly and the first rebuilt flows live.
2
The launch
Week threeCampaigns on a UK calendar, with PRISM tracing every sale back to the send behind it.
3
On track
Week four onA new test every week, more of what earns, and one clear report each month.
4
The growth
£40k–£400kMore monthly email revenue in 30 days or less, or your money backBook a call
30-day guarantee

On Klaviyo in the UK? Let's look at yours.

Book a 45-minute video call, and we'll show you what your Klaviyo account could be earning.

Book a call
30-day guarantee
$8,000,000+ in email revenue driven by data-driven strategies
How it works

Working with us from anywhere in the UK

Step 1

We read your Klaviyo

View-only access to your account, then a figure on what your email should be earning.
Step 2

We fix the basics first

Consent records, sending setup and the flows worth most in your first 30 days.
Step 3

We run it every week

Our team builds each send for your sign-off, and a report reaches you every month.

FAQs

Can't find your answer? Book a call

Do you work with brands across the UK?

Yes, from Cornwall to the Highlands, on UK hours. We're a remote UK company, so we work with you over video calls and Slack, and we don't hold in-person meetings.

What does a Klaviyo agency actually run?

Everything in your account. Strategy, writing, design, flows, campaigns, segments, forms and SMS. Nothing goes out until you've said yes to it.

So many UK agencies run Klaviyo. Why should we pick you?

We're an email agency, so we only run email and SMS. Our team has run testing for Currys, Samsung, AVIVA, AXA and P&O Ferries. Every flow we build is split-tested, three versions per original. We're remote, so judge us on the work.

How does the guarantee work for UK brands?

It's in pounds. Bring at least £40k a month from email, and get £40k–£400k more a month within 30 days, or your money back. *If your emails land in spam, fixing that comes first and takes about six weeks, then the 30 days start.

We're on Omnisend, not Klaviyo. Can you help?

Yes, we run Omnisend accounts the same way. If moving to Klaviyo would earn you more, we'll show you the numbers and leave the choice with you.

Can you audit our Klaviyo first?

Yes. The free audit shows what your account earns now, where it's leaking and what to fix first.

Find the money in your emails

Get $50k–$500k more email revenue every month within 30 days, or your money back.

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© 2026 Tornado Digital Group Ltd. Registered in England and Wales, company no. 14014279.
Email designs shown are examples of our team’s work. Brand names and logos belong to their owners. Results vary by brand. The guarantee is for brands already making at least $50k a month in email revenue. Full terms are agreed on your first call.

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