United Kingdom · Email and Retention
22 published agencies currently meet the research standard for this page. Each entry below states what it is best suited for and what evidence supports that.
Lifecycle, CRM and retention programmes that raise repeat revenue.
The agencies below have enough source-backed evidence to be compared meaningfully. Use the comparison table for a scan, then read the profiles for the evidence behind each claim.
Filter and sort the full directory for wider results.
| Agency | Best suited for | Min. project | Team size | Evidence |
|---|---|---|---|---|
| Eastside Co | Ecommerce brands launching or scaling on Shopify or Shopify Plus that need in-house design, development, migration and ongoing marketing (SEO, PPC, email, social) support, from ambitious growing businesses to larger global brands, delivered by a full-service, fully in-house UK team of 50+. | — | 80+ | limited |
| Charle | Ecommerce brands on Shopify or Shopify Plus wanting design, development, SEO/GEO, CRO and email/SMS from one search-first agency. | — | — | limited |
| Digitox | DTC brands in fashion, beauty, fragrance and lifestyle seeking marketing across Klaviyo, paid media and Shopify. | — | — | limited |
| Rococo Digital | B2B and ecommerce brands looking for integrated marketing across SEO, paid media and automated email. | — | — | limited |
| Sabre Digital | Suitable for brands needing Shopify store development, launch support, paid media and retention systems. | — | — | limited |
| Email Kong | DTC brands on Shopify seeking Klaviyo email, SMS and retention programmes. | — | — | limited |
| Aware Digital | UK-based B2B and B2C eCommerce retailers and wholesalers running or migrating to Magento 2/Adobe Commerce and Hyvä, wanting a technical, UK-based development and design partner for ongoing site performance, conversion and consultancy work. | — | — | agency provided |
| Barbell Marketing | Fitness brands seeking a growth marketing partner. | — | — | agency provided |
| Bath Marketing Agency | Media, ecommerce, B2B, B2C, and D2C brands seeking boutique digital marketing support. | — | — | agency provided |
| Bigg | Ambitious SMEs (UK-based, Bristol area and beyond) seeking a long-term, strategy-first performance marketing partner across SEO, AI/AEO search, paid advertising, web design, social and email, who value transparent scoped engagements and multi-year retainer relationships over quick one-off wins. | — | — | agency provided |
| BYLT Media | Not yet documented | — | — | agency provided |
| Connected Vet | Not yet documented | — | — | agency provided |
| Digital 24 | Not yet documented | — | — | agency provided |
| Erudite Digital | Not yet documented | — | — | agency provided |
| Goram & Vincent | Not yet documented | — | — | limited |
| Kee | Not yet documented | — | — | agency provided |
| Mira Marketing | Not yet documented | — | — | agency provided |
| Primo Interactive | Not yet documented | — | — | limited |
| Scale Beyond | Not yet documented | — | — | limited |
| SendDrive | Not yet documented | — | — | agency provided |
| Shawfire Media | Not yet documented | — | — | limited |
| Social Loop | Not yet documented | — | — | agency provided |
London, United Kingdom
Shopify Plus Partner agency providing store design, development and Klaviyo email marketing services.
Compiled from public information. The agency has not claimed this profile. Last verified September 9, 2026.
London, United Kingdom
Search-first Shopify Plus agency offering ecommerce builds, conversion work and Klaviyo-based retention marketing.
Compiled from public information. The agency has not claimed this profile.
London, United Kingdom
London direct-to-consumer marketing agency offering Klaviyo email marketing, paid media and ecommerce website design.
Compiled from public information. The agency has not claimed this profile.
Arundel, United Kingdom
West Sussex ecommerce growth agency offering Klaviyo email marketing alongside web design and marketing for Shopify brands.
Compiled from public information. The agency has not claimed this profile.
London, United Kingdom
London ecommerce growth agency building Shopify stores and running Klaviyo-based retention and lifecycle marketing.
Compiled from public information. The agency has not claimed this profile.
London, United Kingdom
London CRM and retention agency for direct-to-consumer brands, handling email, SMS and lifecycle automation.
Compiled from public information. The agency has not claimed this profile.
Stoke-on-Trent, United Kingdom
UK eCommerce agency and Klaviyo Gold Partner delivering Magento, Hyvä and Klaviyo email marketing for online retailers.
Compiled from public information. The agency has not claimed this profile. Last verified September 13, 2026.
Birmingham, United Kingdom
Barbell Marketing is a Birmingham fitness marketing agency focused on performance marketing and brand building for fitness entrepreneurs, apparel and supplement brands.
Compiled from public information. The agency has not claimed this profile. Last verified October 21, 2026.
Bath, United Kingdom
A Bath agency providing boutique digital marketing including branding, SEO, PPC and content for media, ecommerce and B2B brands.
Compiled from public information. The agency has not claimed this profile. Last verified October 21, 2026.
Bristol, United Kingdom
Bigg is a performance marketing agency based in Bristol. It provides email marketing, including segmentation, automated flows and campaign planning, alongside other digital marketing services for local and national clients.
Compiled from public information. The agency has not claimed this profile. Last verified September 14, 2026.
London, United Kingdom
A London marketing agency for skincare and fragrance brands focused on paid social and retention.
Compiled from public information. The agency has not claimed this profile. Last verified October 13, 2026.
Birmingham, United Kingdom
Connected Vet is a Birmingham digital marketing agency dedicated to independent veterinary practices, providing websites, SEO, content, email and social.
Compiled from public information. The agency has not claimed this profile. Last verified September 28, 2026.
Belfast, United Kingdom
A Belfast digital marketing agency offering Meta and Google ads, social media management and content creation.
Compiled from public information. The agency has not claimed this profile. Last verified September 28, 2026.
Belfast, United Kingdom
A Belfast digital marketing and video agency offering social advertising, videography and email marketing.
Compiled from public information. The agency has not claimed this profile. Last verified September 28, 2026.
Bristol, United Kingdom
Bristol agency working with lifestyle brands on segmentation and automated retention programmes as a Klaviyo partner.
Compiled from public information. The agency has not claimed this profile. Last verified September 16, 2026.
London, United Kingdom
A London automotive marketing agency providing email, social and website services for car dealerships.
Compiled from public information. The agency has not claimed this profile. Last verified October 13, 2026.
Newcastle upon Tyne, United Kingdom
Founded in 2018 and based in Ouseburn, Mira is a Newcastle marketing agency running strategy, paid media, SEO, email and social for growing UK brands.
Compiled from public information. The agency has not claimed this profile.
Wrexham, United Kingdom
Agency offering website design and development, SEO, Google Ads, email marketing and hosting.
Compiled from public information. The agency has not claimed this profile. Last verified October 21, 2026.
Manchester, United Kingdom
Ecommerce agency focused on split testing, UX/UI design and Klaviyo email marketing.
Compiled from public information. The agency has not claimed this profile. Last verified September 16, 2026.
United Kingdom
UK Klaviyo email marketing agency focused on lifecycle flows and campaigns for Shopify brands.
Compiled from public information. The agency has not claimed this profile. Last verified September 13, 2026.
Manchester, United Kingdom
Email marketing and retention agency working with Shopify brands on repeat purchase and lifetime value.
Compiled from public information. The agency has not claimed this profile. Last verified September 16, 2026.
Harrogate, United Kingdom
A boutique digital marketing agency based in Harrogate specialising in social media management, content creation, email marketing, website design, SEO and Amazon account management.
Compiled from public information. The agency has not claimed this profile.
Read the full methodology, including evidence-confidence levels and methodology versioning.
We publish pricing ranges only where an agency has disclosed them or a source documents them. Where a minimum project size or hourly range is missing on this page, it means we have not confirmed it — not that the agency is inexpensive or expensive.
Start from the decision you are actually making: the stage of your business, the outcome you need in the next twelve months, and the internal team that will own the work afterwards. Specialty depth matters more than agency size for most buyers.
Ask every shortlisted agency for two references in your sector, the names of the people who will do the work, and one example where the engagement did not go to plan. Compare the answers against the evidence recorded on their profile here.
Contracting norms, currency, tax treatment and time-zone overlap all change the real cost of an engagement. Where a market-specific factor is documented for an agency, it appears on that agency's profile with a source attached.
Every factual claim on an agency profile carries a source URL, a source type, a verification status and a last-verified date. Sources for the agencies above are listed on each profile.