Best Klaviyo Agencies UK: 13 Email Marketing Agencies Compared (2027)

A Klaviyo agency is an email marketing agency that sets up and runs a brand's email and SMS on Klaviyo: the automated flows (welcome, abandoned cart, post-purchase, win-back), the campaign calendar, the segments, the design and copy, and the monthly reporting. You need one when email should bring in a steady share of sales but nobody in the team has the time or the Klaviyo knowledge to build and run it: after a move from another email platform, when flows were set up once and never touched again, or when the campaign calendar keeps slipping.

This page compares 13 Klaviyo agencies based in the United Kingdom: five in London, two in Manchester and one each in Barnstaple, Birmingham, Herne Bay, Milton Keynes, Shrewsbury and Thornaby. Every fact comes from the agency's profile in Klaviyo's partner directory or from its own website, read on 13 November 2026, with a link to the page. The order is not a ranking.

Why we publish it: Kanal is a paid WhatsApp marketing app for Shopify that connects to Klaviyo, and we work with agencies that set up WhatsApp for the stores they run. None of the agencies below asked to be listed.

UK Klaviyo agencies at a glance

Each tier links to the agency's profile in Klaviyo's partner directory, where the tier is shown under the agency name.

How we selected these agencies

We started from Klaviyo's partner directory, which lists agencies with their tier, the ecommerce platforms they work on, their regions and their services. The directory filters by region, not by country, so we kept the profiles that describe a UK base and opened each one on 13 November 2026. We also looked at which agencies come up on the first page of Google in the UK for "email marketing agency uk" and "klaviyo agency".

From there we kept 13 agencies on four conditions:

• Based in the UK: the agency's own site or its directory profile gives a UK city.
• A Klaviyo tier shown in the directory on the day we read it.
• Ecommerce work: the agency's pages describe work for brands that sell online.
• Enough published to describe them: services, named clients and a way to contact them.

What you should know before reading on:

• The order is not a ranking. It follows our research notes, from agencies that only do ecommerce email to full-service agencies with an email team.
• Every fact has a source. Tiers come from Klaviyo's directory. Services, clients, addresses and prices come from the agency's own pages, or from its directory profile when we say so. When something is not published, we say so.
• Badges from other platforms (Meta, Shopify) are the ones shown on the agencies' own sites. Meta's Business Partner directory could not be read when we checked, so we did not verify them there.
• No ratings. We give no score and no review count.
• Being left out means nothing. The directory lists more UK partners than this page. Agencies that mainly build Shopify stores, such as Swanky, Kubix or Velstar, are covered in our comparison of UK Shopify agencies and are not repeated here.
• Corrections are welcome. If you run one of these agencies and a fact is wrong or out of date, write to us and we will update the page.

The 13 UK Klaviyo agencies, one by one

Get Better (North Devon)

Get Better calls itself an ecommerce email specialist and works on Klaviyo for direct-to-consumer brands. Klaviyo's directory lists it as an Elite Master partner (directory profile). Its contact page gives an address at NODE Cowork, Roundswell, Barnstaple.

• What it does: full Klaviyo account management (flows, campaigns, emails and SMS), flow optimisation, account set-up, content calendars, copywriting, email design, A/B testing and monthly reporting, according to its home page. Its directory profile adds WhatsApp and RCS among the channels it runs.
• Clients it names: PerfectTed, MOMA, Magic Madhouse, Pott Candles, Studio10, Sailing Chandlery, Fragrance Hub and Escentual.
• Price: audits are priced on its audits page, from £199 + VAT for the Bronze audit to £800 + VAT for the Gold audit. Management fees are not published.

Enchant Agency (London)

Enchant Agency is an email marketing and eCRM agency headquartered on Great Portland Street, London, with offices in Cambridge, Berlin and New York (contact page). Klaviyo's directory lists it as a Platinum Master partner (directory profile). A banner on its site says Klaviyo named it 2026 EMEA UK & Ireland Partner of the Year.

• What it does: Klaviyo onboarding, audits, flows, email design systems, deliverability, copywriting and campaign management, plus SMS, WhatsApp and push notifications. It also works on HubSpot, Braze and Iterable.
• Clients it names: QVC, Sealskinz, Herbalife, Cox & Cox and Hampers.com, on its directory profile.
• Price: its pricing page sells custom projects, fixed-scope packages and monthly subscriptions. Its FAQ says subscriptions are not billed by the hour and that the prices in its tables assume a 12-month agreement.

Email Kong (London)

Email Kong describes itself as a London-based CRM and retention agency for direct-to-consumer brands, founded in 2021 by Bogdan Mihalache and Cynthia de Gelder (About page). Klaviyo's directory lists it as a Platinum Master partner (directory profile). Its partners page adds a Loop Platinum Partner status.

• What it does: monthly Klaviyo flows, campaigns and SMS, audits and rebuilds, and retention for subscription brands (cancel flows, failed payment recovery). Its About page also lists WhatsApp.
• Shopify: its partners page says every brand it runs sells on Shopify or Shopify Plus.
• Clients it names: Kaori, KittySpout, Penrose Skin, Kuri Nüka and Alma de Ace (home page).
• Price: the FAQ on its home page says retainers start from $5,000 a month as a fixed fee, with a three-month minimum, then four weeks' notice.

ElliotDigital (London)

ElliotDigital presents itself as an email and SMS retention partner for direct-to-consumer brands. Klaviyo's directory lists it as a Platinum Master partner with Shopify and Shopify Plus expertise, and describes it as a London-based agency with a small, full-stack team (directory profile). Its own site gives no address.

• What it does: strategy, optimisation and split testing, email design, automation, segmentation and copywriting for email and SMS (services page).
• Clients it names: testimonials on its home page come from SURREAL, Magic Mind, Days Brewing, PÄRLA, HUX and XITE.
• Shopify: a Shopify Partners badge appears on its home page, next to its Klaviyo badge.
• Price: not published.
• Contact: a form on its contact page.

VALIX (Milton Keynes)

VALIX describes itself as a Klaviyo partner for customer growth and lifecycle marketing, with a trading address in Bletchley, Milton Keynes, and a registered office in London (contact page). Klaviyo's directory lists it as a Platinum Master partner (directory profile). Its founder, Phill Manson, also founded PAASE, and PAASE's contact page says the PAASE team has worked as VALIX since a 2025 transition. The directory still shows a PAASE profile at the Elite Master tier.

• What it does: Klaviyo audits, migrations and onboarding, segmentation built on zero-party data, AI-generated content in Klaviyo flows, an email template audit scored against 14 conversion criteria, analytics, and WhatsApp (home page).
• Case studies it publishes: Okanui, Cocopup and Curlsmith.
• Price: not published.

Scale Beyond (Manchester)

Scale Beyond is a customer value optimisation (CVO) agency in Ancoats, Manchester, offering UX design, split testing and email marketing (contact page). Klaviyo's directory lists it as a Platinum Master partner (directory profile). Its email marketing page says it works only with businesses selling products online, and now almost only on Klaviyo.

• What it does: a one-off build of the core automated flows, creative and copy included, and monthly campaign management against a 12-month calendar, with a performance summary.
• Clients it names: NAPA, Ring Automotive, Danetti, UK Water Filters and Brook Taverner.
• Price: not published; it sends a costed proposal, with a monthly fee that depends on the number of emails and on sign-off.
• Good to know: its FAQ says all work is done by its own in-house teams, without freelancers or white-label teams.

The Growth Foundation (London)

The Growth Foundation is an ecommerce growth agency whose contact page gives an address on D'Arblay Street, Soho, London. Klaviyo's directory lists it as a Platinum Master partner and says it was founded in 2021 by Richard Chapple and Sarah Jasper-Baker (directory profile). Its home page says Richard Chapple was CMO at Gymshark.

• What it does: CRM sits next to brand, creative, paid media, marketplaces and recruitment. Its CRM page covers CRM roadmaps, email, SMS, push, loyalty programmes, platform migrations and help building an in-house CRM team.
• Clients it names: 47 Skin, Sculpted by Aimee, NIO Cocktails, Snug and BOXRAW, among others on its directory profile.
• Price: not published.
• Good to know: it also publishes a Shopify app, Order Rescue, which deals with discount codes that fail at checkout.

Thrivelia (London and Sofia)

Thrivelia is a lifecycle marketing agency founded in 2021 by Trayan Hristov, with a team across London and Sofia; its site names the company Thrivelia EOOD (About page). Klaviyo's directory lists it as a Platinum Master partner (directory profile).

• What it does: retention marketing across email, SMS, WhatsApp, direct mail and push notifications for ecommerce, subscription and software brands, built on a framework it calls the Marketing Hourglass. Its directory profile lists account audits, set-up and migration, flows, forms, segmentation, testing and sender authentication.
• Clients it names: Perfectwhitetee, Pulsetto, VIBAe, Wide Fit Shoes and BWH Plant Co, on its home page.
• Price: not published.
• Contact: a call booking link on its site, or the form on its directory profile.

Climb & Conquer (Thornaby)

Climb & Conquer is a performance agency in Thornaby, Stockton-on-Tees, working on search, shopping ads, paid social and email (contact page). Klaviyo's directory lists it as a Gold Advisor partner (directory profile).

• What it does: Klaviyo set-up, flows, campaigns, segmentation and deliverability, moves from Mailchimp, plus WhatsApp and SMS (Klaviyo agency page).
• Clients it names: its Klaviyo case studies cover JT Atkinson, Stairparts Direct and NuWave Drinks.
• Price: published on its Klaviyo page as monthly tiers, from around £400 (Campaigns) through £900 (Klaviyo Essential) and £1,500 (Klaviyo Growth+) to £2,400 or more (Bespoke). The Klaviyo subscription is billed separately by Klaviyo.
• Good to know: the same page says it does not use contracts, and advises giving any agency 6 to 15 weeks before judging the results.

Prospa Media (Manchester)

Prospa Media works with ecommerce brands on paid social, paid search and retention, from offices in Trafford Park, Manchester, and Mitchell Street, London (contact page). Klaviyo's directory lists it as a Gold Master partner (directory profile).

• What it does: on the retention side, email, SMS, loyalty and subscriptions. Its email page describes segments built on lifetime value and purchase intent, deliverability management and reporting tied to profit, using GA4 and Shopify data.
• Badges on its site: Shopify partner, Meta Business Partner, Google verified agency and Klaviyo Master Gold, shown on its email page.
• Clients it names: Swole Panda, Glenmuir, Hair Syrup, Ava Mayfair, KINTO, Dr Sebagh and Vanquish Fitness (home page).
• Price: not published.

Pear Digital (Birmingham)

Pear Digital is run by a husband-and-wife team, Taz and Allya, from Radclyffe House on Hagley Road, Edgbaston, Birmingham (home page). Klaviyo's directory lists it as a Silver Master partner and says it started in 2015 (directory profile).

• What it does: Shopify store design and migrations, Google Ads, Meta ads and Klaviyo email (Klaviyo page).
• Shopify: a Shopify Experts badge sits on its partners page.
• Price: published on its Klaviyo page: a Klaviyo Power Audit at £750 + VAT, campaign management from £1,500 + VAT a month (three-month minimum), and a flow set-up or overhaul at £3,250 + VAT, billed in three instalments. The same page gives 6 to 8 weeks for a flow set-up.
• Clients it names: ASAP Europe in a home page testimonial, and RAFATRAD on its directory profile.

Email-Postman (Herne Bay)

Email-Postman is an email and SMS marketing agency founded in February 2019 by Shaun Reynolds, who has worked in email since 2005 (home page). Its contact page describes a small team in Herne Bay, Kent. Klaviyo's directory lists it as a Silver Master partner (directory profile).

• What it does: email audits, strategy, list growth, automations (welcome, abandoned cart and checkout, replenishment, browse abandonment), segmentation, reporting and SMS for Klaviyo.
• Other platforms: it is a Mailchimp Pro Partner and has partner pages for Ometria, Omnisend and Deployteq.
• Clients it names: BBC Maestro, YuMove and Swizzels, in testimonials on its home page.
• Price: no price list. Its home page describes an offer for checkout and added-to-cart automations with no upfront cost, paid once the automations bring in profit.

Verve (Shrewsbury)

Verve is a full-service digital agency at Oxon Business Park, Shrewsbury (contact page), and its home page calls it Shropshire's first B Corp digital agency. Klaviyo's directory lists it as a Silver Master partner (directory profile).

• What it does: email marketing next to strategy, design, website builds on Shopify, Magento 2, WooCommerce and WordPress, paid search, SEO and hosting. Its directory profile says it has connected Klaviyo to Magento 2, WooCommerce and Shopify stores.
• Price: its directory profile says retainers are charged at a flat £75 an hour and that retainer hours can be moved to other services.
• Clients it names: Fastco, with an email marketing case study, and The Style Coaching Institute on its directory profile.

Klaviyo agencies by city: London, Manchester and the rest of the UK

Klaviyo's directory filters by region, not by city, so here is where the agencies above are based, according to their own sites or directory profiles.

None of the 13 agencies gives Leeds, Bristol or Glasgow as its base. For another town, open the directory, filter on Europe, then check the address on each agency's own site. Most agencies on this page work remotely with brands across the UK: Scale Beyond's FAQ, for example, says it manages communication mostly remotely and meets in Manchester on request.

Email marketing agency, freelancer or in-house: how to choose

What the agency will set up

Whoever does the work, a Klaviyo programme for a Shopify store comes down to the same pieces: sign-up forms, a set of core flows, a campaign calendar, segments and reporting. Our guide to Klaviyo flows for Shopify stores lists the seven core flows, and our Klaviyo pricing guide shows what the platform itself costs as your list grows, on top of any agency fee. If you are still weighing Klaviyo against another tool, our Klaviyo reviews and Klaviyo vs Mailchimp pages cover that step.

Questions to ask a Klaviyo agency

Each question below comes from something an agency on this page answers publicly, so you can compare the replies you get.

• Who runs the account day to day? Scale Beyond says its work is done by in-house teams, without freelancers. Ask every agency who will build your flows and send your campaigns.
• What is the minimum term? Email Kong asks for three months, then four weeks' notice; Pear Digital bills campaign management monthly with a three-month minimum; Climb & Conquer says it has no contracts; Enchant's table prices assume a 12-month agreement.
• What does the fee include? Enchant's subscriptions include up to three campaign sends a month, and Scale Beyond's flow builds include all creative and copy. Ask whether design, copy, SMS and sign-off rounds are in the price.
• Who owns the Klaviyo account and the data? Klaviyo's help centre says Owners and Admins can add users and set their roles (Admin, Manager, Analyst, Support, Campaign Coordinator, Content Creator and others), and that the Owner of an account cannot be deleted without a transfer of ownership (adding users and managing permissions). Keep the Owner role in your team and give the agency a user with the role it needs.
• How will results be measured? By default, Klaviyo credits 100% of a conversion to the last eligible message, with 5-day windows for email clicks and email opens on new accounts (Klaviyo message attribution). Ask whether the monthly report uses Klaviyo's attributed revenue, store revenue or profit: Prospa Media, for example, ties its email reporting to profit.
• What happens first? Several agencies here start with an audit: Get Better and Pear Digital publish the price of theirs, and VALIX and Thrivelia describe an audit or analysis phase before the build.

What the Klaviyo tiers mean

Klaviyo's partner academy describes two tracks for agencies (partner program tracks and tiers). Master partners provide Klaviyo marketing services on a customer's behalf, for example by running their email or SMS, and register the accounts they manage, which the customer confirms. Advisor partners provide marketing services but do not actively manage the clients' Klaviyo accounts. Within each track, partners move up through tiers (Bronze, Silver, Gold, Platinum, Elite) by reaching milestones such as a monthly recurring revenue threshold or a number of leads, and the same lesson says only Silver, Gold, Platinum and Elite partners can be listed in the agency directory. A tier reflects those milestones; the case studies on each profile show the kind of brands an agency works with.

Adding WhatsApp to the Klaviyo work your agency runs

Most agencies on this page run email and SMS in Klaviyo. When a store adds WhatsApp, the agency does not have to rebuild its segments or flows somewhere else. Kanal is a WhatsApp marketing app for Shopify, used by +500 brands and installed in 5 minutes, and its Klaviyo integration works like this:

• Connection: a private Klaviyo API key, pasted in Kanal's settings.
• Segments: Klaviyo segments sync to Kanal and can be the audience of a WhatsApp campaign.
• Flows: a Webhook block in a Klaviyo flow triggers a Kanal automation that sends an approved WhatsApp template at that step, for example to customers who did not open the previous email.
• Reporting: Kanal sends six WhatsApp message metrics back to Klaviyo (Sent, Delivered, Read, Clicked, Inbound and Undeliverable), so the agency can build segments and flow branches on them.

In this set-up, email and SMS stay in Klaviyo and Kanal handles WhatsApp. Consent does not carry over: contacts that come from Klaviyo need a WhatsApp opt-in before they get marketing messages, which our guide to WhatsApp opt-in rules explains. The step-by-step set-up is in our Klaviyo and WhatsApp integration guide.

Next to Klaviyo, Kanal runs abandoned cart recovery, order updates, back in stock alerts and WhatsApp campaigns from Shopify data, on a channel with over 90% open rate on WhatsApp.

Kanal is a paid app: plans start at €89 per month with no commitment, the Klaviyo integration is part of the Scale plan at €149 per month, and Meta's WhatsApp fees are billed on top (see the plans). If neither your team nor your agency can own the channel, our team can run it: see our WhatsApp marketing agency page, or book a demo.