By Pete Devkota·Last reviewed ·Editorial · no paid placements
The best Shopify email marketing agencies, on our ranking, are UN/COMMON (Philadelphia) for US Shopify brands that want lifecycle marketing and store work from one team, Fuel Made (Colbert, Washington) for Shopify Plus brands whose checkout or data is holding email back, and Kubix (Birmingham) or Swanky (Exeter) for UK Shopify brands running Klaviyo. Andzen fits Australian Shopify brands at scale, and Duh Retention fits Shopify brands doing $200,000+ a month that want a published price.
Search "Shopify email marketing agency" and page one is agency service pages, directories and lists written by agencies that rank themselves first. This is one of those lists. We're Email Optimize, an official Klaviyo and Omnisend partner founded in 2017, and we sit at #6. What we're aiming for instead of a sales page: every Shopify and Klaviyo credential below was checked in the platform's own directory, every price is one the agency publishes, and every entry says which store it fits.
Our ranking criteria: (1) Shopify depth, shown by a tier in Shopify's partner directory or a client list built on Shopify stores; (2) email and SMS described as a service for Shopify stores on the agency's own site; (3) email platform credentials checked in Klaviyo's partner directory; (4) named clients on the agency's own site; and (5) a best-fit profile we can state in one sentence. Everything was checked on 10 October 2026. Last reviewed October 2026.
About the author. Aeronautical engineer turned ecommerce email specialist. Pete founded Email Optimize in 2017 and is behind $250M+ in attributed email and SMS revenue across 800+ brands. Full profile →
At a glance
At a glance: 10 Shopify email marketing agencies compared
Shopify tiers are as shown in Shopify's partner directory and Klaviyo tiers as shown in Klaviyo's partner directory (connect.klaviyo.com), both checked 10 October 2026. "Not found" means we couldn't find the agency in that directory, so any claim about it is the agency's own. Prices are only those the agency publishes on its own site, as of October 2026; "Quote only" means it doesn't publish one.
Methodology
How we ranked these
Each agency is judged on the five criteria above: Shopify depth, an email and SMS service for Shopify stores on its own site, email platform credentials we could check, named clients, and a clear best fit. We checked Shopify tiers in Shopify's partner directory, Klaviyo tiers at connect.klaviyo.com, and everything else on the agency's own website, on 10 October 2026. We don't take paid placements or affiliate fees from anyone on this list.
Tier alone doesn't decide the order, but it shapes it. The first five agencies hold both a Shopify partner tier and a Klaviyo Master tier. We put ourselves at #6, straight after them, because we're an email and SMS agency that makes no Shopify tier claim. Below us are a retention specialist, a Shopify agency whose Klaviyo tier we couldn't confirm in Klaviyo's directory, a Postscript specialist and a smaller Klaviyo partner. Weigh our own position knowing who wrote the list.
The list
The 10 best Shopify email marketing agencies, ranked
Best for US Shopify brands that want lifecycle marketing and store work from one team
Shopify Platinum partner (per Shopify's partner directory); Klaviyo Elite Master Partner (per Klaviyo's partner directory); Klaviyo Americas Partner of the Year 2026 · Philadelphia, PA
UN/COMMON holds the strongest pair of credentials on this list. Shopify's partner directory lists it as a Platinum partner in Philadelphia, Klaviyo's directory lists it at Elite Master, and at its K:Partners Awards, announced on 9 September 2026, Klaviyo named it one of two Americas Partners of the Year, alongside ECD Digital Strategy. Its Shopify directory profile says it manages every aspect of a brand's email and SMS programs, and per its site the agency was founded in 2015, has 60+ people, and also builds Shopify Plus stores and runs CRO. Clients on its site include Rare Beauty, Liquid Death, Dermalogica and Beautyblender. Strongest fit for US Shopify brands that want lifecycle marketing and the store handled by one team.
Shopify Platinum partner and Klaviyo Elite Master (per both directories)
Klaviyo Americas Partner of the Year 2026 (shared with ECD Digital Strategy)
Best for Shopify Plus brands whose checkout, theme or data is holding email back
Shopify Plus partner (per Shopify's partner directory); Klaviyo Elite Master Partner (per Klaviyo's partner directory) · Colbert, WA
Fuel Made has been a Shopify partner since 2011, per Shopify's partner directory, which lists it as a Plus partner in Colbert, Washington, and Klaviyo's directory lists it at Elite Master. Its site sells Klaviyo email and SMS marketing alongside Shopify development, which is the point: when browse events don't fire, checkout data is messy or an app breaks the integration, the people building the flows can fix the store too. Clients on its site include Beardbrand, Umbra, Figs and Briogeo. Strongest fit for Shopify Plus brands where the email program and the store both need work.
Shopify Plus partner since 2011 (per Shopify's directory)
Elite Master tier in Klaviyo's partner directory
Klaviyo email and SMS marketing plus Shopify development (per their site)
Kubix is a Birmingham agency on Floodgate Street. Shopify's partner directory lists it as a Platinum partner since 2015, and Klaviyo's directory lists it at Platinum Master. Its site sells email marketing with Klaviyo alongside Shopify builds, and its Klaviyo profile describes migration-led work: moving Shopify brands onto Klaviyo, then building email and SMS journeys. Clients on its site include Ted Baker, Scotch & Soda, Haws and The Fine Cheese Co. Strongest fit for UK Shopify brands moving to Klaviyo that want the team that knows the store to wire it up.
Shopify Platinum partner since 2015 (per Shopify's directory)
Platinum Master tier in Klaviyo's partner directory
Migration-led Klaviyo work for Shopify brands
Clients: Ted Baker, Scotch & Soda, Haws, The Fine Cheese Co.
Best for brands replatforming to Shopify Plus that want Klaviyo set up by the same agency
Shopify Platinum partner (per Shopify's partner directory); Klaviyo Platinum Master Partner (per Klaviyo's partner directory) · Exeter, UK (offices in the UK, Australia and France per their site)
Swanky was founded in 2010, per its site, and has been a Shopify partner since 2011; Shopify's directory lists it as a Platinum partner in Exeter, and Klaviyo's directory lists it at Platinum Master. Replatforming and Shopify Plus builds are the core, and its site also sells itself as a Klaviyo email marketing agency running email, SMS and content. Offices in the UK, Australia and France, per their site. Clients include HelloFresh, Wilkinson Sword, YuMOVE and the Eden Project. Strongest fit for brands moving onto Shopify Plus that want the new store and the Klaviyo program built together.
Shopify Platinum partner since 2011 (per Shopify's directory)
Platinum Master tier in Klaviyo's partner directory
Offices in the UK, Australia and France (per their site)
Clients: HelloFresh, Wilkinson Sword, YuMOVE, Eden Project
Shopify Select partner (per Shopify's partner directory); Klaviyo Elite Master Partner (per Klaviyo's partner directory); Klaviyo APAC Partner of the Year 2025 and 2026 · South Brisbane, Australia
Andzen is listed at Elite Master in Klaviyo's directory and as a Select partner in Shopify's, and Klaviyo named it APAC Partner of the Year in 2025 and again in 2026. Per its site, it was among the first marketing agencies to join the Shopify Plus Partner Program, and it runs email, SMS and Messenger programs. Its head office is in South Brisbane, per its contact page. Clients include MAAP, Aje, Janie and Jack and Lectric eBikes. Strongest fit for Australian Shopify brands at scale where credentials matter to the board and the program is mostly AU-domestic.
Elite Master in Klaviyo's directory; Select partner in Shopify's
Klaviyo APAC Partner of the Year, 2025 and 2026
Early Shopify Plus partner (per their site)
Clients: MAAP, Aje, Janie and Jack, Lectric eBikes
Best for Shopify brands that want email and SMS run by a senior operator, on Klaviyo or Omnisend
Official Klaviyo partner; official Omnisend partner · Adelaide, Australia
That's us. We're an email and SMS agency, not a Shopify build shop: we set Shopify stores up on Klaviyo, or on Omnisend where it fits better, and run the program from there. The setup is where most stores quietly lose money: onsite tracking firing so browse abandonment works, order history backfilled before the first flow goes live, the cart flow on the Started Checkout event, the catalog synced and the sending domain authenticated. Founded in 2017, with a senior team led by founder Pete Devkota, West Coast-based team members for US brands, and $250M+ in attributed email and SMS revenue across 800+ brands. The receipts: Popl took email and SMS from under 20% to 50-60% of revenue over 21 months, and at Relaxium (INC 5000) Pete spent 22+ months as embedded Head of Retention Marketing, where email and SMS added +$3M in incremental annual revenue. Where we're not the pick: if your theme, checkout or apps need development, the Shopify partners above do the store and the email together.
Klaviyo or Omnisend on Shopify; official partner of both
$250M+ attributed email and SMS revenue across 800+ ecommerce brands
Shopify Messaging (Shopify Email) to Klaviyo migrations
Adelaide HQ with West Coast-based team members
DORTA Method (Delivered → Opened → Read → Trusted → Acted) for diagnosis
Sticky Digital calls itself "Shopify's Premier Retention Marketing Agency". That's its own tagline rather than a Shopify tier: we didn't find it in Shopify's partner directory. What we could check: Klaviyo's directory lists it at Platinum Master, its site sells full-service email and SMS plus loyalty and subscription work, and its client list is US consumer DTC, including PrettyLitter, MUD\WTR, Tubby Todd and American Optical. Its site doesn't state a head office. Strongest fit for US Shopify brands that want a team doing retention and nothing else.
Platinum Master tier in Klaviyo's partner directory
Full-service email and SMS, plus loyalty and subscriptions (per their site)
Clients: PrettyLitter, MUD\WTR, Tubby Todd, American Optical
Best for UK Shopify brands that want design, development and email under one agency
Shopify Premier partner (per Shopify's partner directory); Klaviyo Silver Partner (per their site) · London, UK (offices in New York and Manchester per their site)
Charle is a Shopify-only agency founded in 2018, per its site, and Shopify's partner directory lists it as a Premier partner in London. Email is a service line rather than the whole business: its site offers email campaigns, SMS, automated flows and segmentation "to maximize the lifetime value of your Shopify customers", and says its Klaviyo pricing is tailored to each brand. It describes itself as a Klaviyo Silver Partner; we couldn't find its profile in Klaviyo's directory. Clients include Cambridge Satchel, Candy Kittens, Muc-Off and 111Skin. Strongest fit for UK Shopify brands where the store and email both need work and one agency should own both.
Shopify Premier partner (per Shopify's directory)
Email, SMS, flows and segmentation for Shopify brands (per their site)
London HQ, New York and Manchester offices (per their site)
Best for Shopify brands doing $200,000+ a month that want a published price
Postscript Platinum Certified Partner (per Postscript's partner directory, September 2026)
Duh Retention works with Shopify brands and is one of the few agencies that publishes its prices. Per its site, as of October 2026: one-time projects start at $2,500, retainers run between $5,000 and $12,000 a month, and it doesn't take on brands doing less than $200,000 a month in Shopify revenue. Its site promises a dedicated five-person retention team covering email, SMS and push. It's listed at Platinum in Postscript's partner directory, so SMS is a strength. Named clients include Youtooz, Theory11, Buffy and Yokkao. Strongest fit for Shopify brands past that revenue floor that want to know the price before the first call.
Published pricing: projects from $2,500, retainers $5,000-$12,000/month (per their site)
Minimum $200,000/month in Shopify revenue (per their site)
Dedicated five-person retention team on email, SMS and push (per their site)
CodeCrew is a Concord, California agency with a dedicated Shopify email marketing page, covering strategy, welcome series and abandoned cart flows, and its site sells email, SMS and loyalty marketing with a team of 40+. Klaviyo's directory lists it at Silver Master. We didn't find it in Shopify's partner directory; its site lists Shopify among the platforms it works on. Clients on its site include Oru Kayak, Mosaic Foods and FinalStraw. Strongest fit for smaller Shopify brands that want a US team for Klaviyo email, SMS and loyalty without an enterprise-sized engagement.
Silver Master tier in Klaviyo's partner directory
Email, SMS and loyalty marketing, 40+ team members (per their site)
Clients: Oru Kayak, Mosaic Foods, FinalStraw
Practical decision
Which Shopify email marketing agency fits which store
Start with what needs fixing. If it is only the email program, hire an email specialist; if the store needs work too, hire an agency that holds a Shopify tier as well.
US Shopify or Shopify Plus brand wanting lifecycle marketing and store work from one agency
→ UN/COMMON Agency.
Shopify Plus brand whose checkout, theme or data is holding email back
→ Fuel Made.
UK Shopify brand moving to Klaviyo
→ Kubix (Birmingham).
Brand replatforming to Shopify Plus that wants Klaviyo built at the same time
→ Swanky.
Australian Shopify brand at scale
→ Andzen, or Email Optimize if you also sell in the US or UK.
Shopify brand whose store is fine and wants email and SMS run by a senior operator
→ Email Optimize, on Klaviyo or Omnisend.
US Shopify DTC wanting a retention-only team
→ Sticky Digital.
UK Shopify brand wanting design, development and email from one agency
→ Charle.
Shopify brand doing $200,000+ a month that wants a published price
→ Duh Retention.
Smaller Shopify brand wanting Klaviyo email, SMS and loyalty from a US team
→ CodeCrew.
What to set up
What a Shopify email marketing agency should set up first
Connecting Klaviyo or Omnisend to Shopify takes minutes. Connecting it properly is where stores quietly lose revenue, so ask any agency on your shortlist how it checks these before the first flow goes live.
Onsite tracking firing. Without it you get orders but no product views, which means no browse abandonment flow and weaker segments.
Order history backfilled, so profiles carry real purchase history and segments work from day one.
The abandoned cart flow on the right event: Started Checkout, in most stores, so it reaches people who were really in checkout.
The catalog synced, so product blocks show the right product, price and stock.
Consent mapped. Shopify checkout's marketing opt-in should sync to your email platform, and SMS consent should be collected and stored separately.
A branded sending domain authenticated with SPF, DKIM and DMARC before volume goes up.
Shopify Messaging, the new name for Shopify Email, is built into the Shopify admin. As of October 2026, Shopify's Help Center says stores get 10,000 free emails a month, then pay $1 per 1,000. For a small store sending a few campaigns a month, that can be enough, and you may not need an agency at all.
Klaviyo is the default once email has to earn real repeat revenue: its Shopify integration syncs orders, checkouts, profiles and the catalog, and flows can branch on purchase history and predicted behaviour. It bills on active profiles, $20 a month at 500 profiles and $150 at 10,000 for email as of October 2026, with SMS on top. Omnisend is the closest lower-cost alternative for Shopify brands. Most agencies on this list are Klaviyo partners; we're partners of both Klaviyo and Omnisend.
How much does a Shopify email marketing agency cost?
Few agencies on this list publish prices. As of October 2026: Duh Retention lists one-time projects from $2,500 and retainers between $5,000 and $12,000 a month, for Shopify brands doing at least $200,000 a month. Charle says its Klaviyo pricing is tailored to each brand, and the rest quote after a call. Ours, as published on our pricing page: a free audit, projects at $3,000 to $15,000 USD, and retainers typically $3,000 to $12,000 USD a month, month-to-month with 30 days' notice.
Your email platform is billed on top of any agency fee, and SMS adds a per-message cost. Judge the fee against the incremental email and SMS revenue it produces, not against another agency's quote.
It connects your email and SMS platform to Shopify properly, then builds and runs the program: automated flows (welcome, abandoned cart, browse abandonment, post-purchase, back in stock, win-back), campaigns, list growth, segmentation, deliverability and revenue reporting. The good ones judge themselves on revenue per recipient and the share of store revenue email and SMS drive, not on open rates.
On our ranking: UN/COMMON Agency, Fuel Made, Kubix, Swanky, Andzen, Email Optimize, Sticky Digital, Charle, Duh Retention and CodeCrew. The right one depends on whether the store needs development work too, your market (US, UK or Australia), your size and your email platform. The "Which Shopify email marketing agency fits which store" section maps each profile to a pick.
As of October 2026, Duh Retention publishes projects from $2,500 and retainers of $5,000 to $12,000 a month for Shopify brands doing $200,000+ a month. Email Optimize publishes a free audit, projects at $3,000 to $15,000 USD and retainers typically $3,000 to $12,000 USD a month, month-to-month. Most other agencies quote after a call. Your email and SMS platform is billed separately.
Not necessarily. A Shopify partner tier tells you an agency builds and sells on Shopify; it says nothing about email. For email, check the agency in your email platform's directory (Klaviyo's is at connect.klaviyo.com) and ask for revenue per recipient results. An agency with a Shopify tier is worth it when the store itself needs work too, such as checkout, theme events or apps that break the integration.
Shopify Email, now called Shopify Messaging, is enough for a small store sending a few campaigns a month: as of October 2026 Shopify includes 10,000 free emails a month, then charges $1 per 1,000. Move to Klaviyo (or Omnisend) when email has to drive repeat revenue, because flows that branch on purchase history, deeper segmentation and revenue reporting are where the money is.
Use two directories together. Shopify's partner directory shows an agency's Shopify tier and location; Klaviyo's partner directory at connect.klaviyo.com shows its Klaviyo tier. Then ask each shortlisted agency who would work on your account, for revenue per recipient results for a store like yours, and what happens in the first 30 days.
Because leaving ourselves off would hide a relevant option, and ranking ourselves first would make the list useless. We put ourselves at #6, after the five agencies that hold both a Shopify tier and a Klaviyo Master tier, said where we fit (Shopify brands that want email and SMS run by a senior operator) and where we don't (stores that also need development work). We take no paid placements or affiliate fees from any agency listed.